JP2003326375A - Vertical or inclined standing joint structural body - Google Patents

Vertical or inclined standing joint structural body

Info

Publication number
JP2003326375A
JP2003326375A JP2002139109A JP2002139109A JP2003326375A JP 2003326375 A JP2003326375 A JP 2003326375A JP 2002139109 A JP2002139109 A JP 2002139109A JP 2002139109 A JP2002139109 A JP 2002139109A JP 2003326375 A JP2003326375 A JP 2003326375A
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JP
Japan
Prior art keywords
horizontal
standing
shoulder
vertical
friction stir
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002139109A
Other languages
Japanese (ja)
Other versions
JP4195580B2 (en
Inventor
Yoshikuni Kato
慶訓 加藤
Katsumi Tottori
勝美 鳥取
Yasuhiro Kanekawa
泰宏 金川
Nobumi Hiromoto
悦己 広本
Yukio Manabe
幸男 真鍋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP2002139109A priority Critical patent/JP4195580B2/en
Publication of JP2003326375A publication Critical patent/JP2003326375A/en
Application granted granted Critical
Publication of JP4195580B2 publication Critical patent/JP4195580B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To perform a good precise friction-stirring joining at a low cost when a standing member is friction-stirring joined to a horizontal member to obtain a joint. <P>SOLUTION: When the end part of the standing member is engaged with a groove part by forming one pair of projecting parts 22 and 23 extended in the longitudinal direction at the longitudinal interval on the main surface of the horizontal member 11 and regulating the groove part 21 with one pair of projecting parts, with the bottom surface in parallel to the main surface and one pair of side surfaces regulated to both ends of the bottom surface extended in the longitudinal direction and forming the end part of the standing member 12 to a projecting-shape for engaging with the shape of the groove part, the joining part is formed so as to have the inclined surface with the projecting parts and the end part of the standing member, and the joining part is subjected to the friction-stirring joining by a friction-joining tool. In this case, the depth of the groove part is regulated not longer than the length of a probe because of the projecting part, and the width of the inclined surface regulating the joining part is regulated not shorter than the diameter of the shoulder part. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、被加工物に摩擦熱
を付与する円形ショルダ面の中心軸線上にプローブが垂
設された摩擦接合工具を用い、立設部材の下端を水平部
材の主面に当接した後、前記当接部にショルダ面を押圧
摩擦回転させながら、前記当接部を摩擦撹拌接合したＴ
型、Ｌ字形、Ｉ型、Π型、及び∠型等の垂直若しくは傾
斜立設継手構造体に関し、特に、鉄道車両、船舶、又は
航空機等の大型構造物に用いられる垂直若しくは傾斜立
設継手構造体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a friction welding tool in which a probe is hung vertically on the center axis of a circular shoulder surface that applies frictional heat to a workpiece, and the lower end of the standing member is the main member of the horizontal member. After contacting the surface, the contact surface is friction stir welded while pressing and rotating the shoulder surface against the contact portion.
Vertical or inclined standing joint structure of type L, I, Π, ∠, etc., especially vertical or inclined standing joint structure used for large structures such as railway vehicles, ships, or aircraft Regarding the body

【０００２】[0002]

【従来の技術】一般に、鉄道車両、船舶、及び航空機等
の大型構造物に用いられ、長手方向に延在する長尺な中
空型材等の二面構造体（パネル）は押し出し成形材を複
数平行に配設したものを突き合わせ接合して構成されて
あり、このような押し出し型材同士を接合する際には、
例えば、ＭＩＧ溶接等を用いて突き合わせ接合部を形成
する。しかしながら、溶融接合する方法では熱歪み等の
問題が生じる。2. Description of the Related Art Generally, a two-sided structure (panel) such as a long hollow member that extends in the longitudinal direction is used for a large structure such as a railroad vehicle, a ship, and an aircraft. It is configured by butt-joining the ones arranged in, and when joining such extrusion mold members,
For example, MIG welding or the like is used to form the butt joint. However, the melt-bonding method causes problems such as thermal distortion.

【０００３】一方、特表平７−５０５０９０号公報に
は、摩擦攪拌接合による部材同士の接合が記載されてお
り固相接合方法として、加工物より実質的に硬い材質か
らなるツ−ルを加工物の接合部に挿入し、前記ツ−ルを
回転させながら移動することにより、該、回転ツ−ルと
加工物との間に生じる摩擦熱による塑性流動によって加
工物を接合する接合方法がある。On the other hand, Japanese Patent Publication No. 7-505090 discloses joining members by friction stir welding. As a solid-state joining method, a tool made of a material substantially harder than a workpiece is machined. There is a joining method in which a workpiece is joined by being inserted into a joint portion of an object and moving while rotating the tool, by plastic flow due to frictional heat generated between the rotating tool and the workpiece. .

【０００４】かかる摩擦接合法は、接合部材を固相状態
で、該ツ−ルを回転させながら移動して軟化させた固相
部分を一体化しながら接合できるために、熱歪みがなく
接合方向に対して実質的に無限に長い部材でもその長手
方向に連続的に固相接合できる利点がある。さらに、回
転ツ−ルと接合部材との摩擦熱による金属の塑性流動を
利用した固相接合のため、接合部を溶融させることな
く、接合できる。また、加熱温度が低いため、接合後の
変形が少ない。接合部は溶融されないため、欠陥が少な
いなどの多くの利点がある。In such a friction joining method, since the joining member can be joined while the joining member is in a solid state and moved while rotating the tool so as to be softened, there is no thermal strain in the joining direction. On the other hand, there is an advantage that even a substantially infinitely long member can be continuously solid-phase bonded in the longitudinal direction. Further, since the solid phase joining utilizes the plastic flow of the metal due to the frictional heat between the rotary tool and the joining member, the joining can be performed without melting the joining portion. Further, since the heating temperature is low, the deformation after joining is small. Since the joint is not melted, it has many advantages such as few defects.

【０００５】さらに、特許第３１５２４２０号公報に
は、鉄道車両、船舶、及び航空機等の大型構造物に用い
られる長尺な中空型材等の二面構造体（パネル）を、押
し出し成形材を複数平行に配設したものを突き合わせ接
合して構成するようにした摩擦攪拌接合による二面構造
体（パネル）同士の接合が記載されている。Further, in Japanese Patent No. 3152420, a plurality of two-sided structures (panels) such as long hollow mold members used for large-scale structures such as railroad cars, ships, and aircraft are extruded in parallel. The joining of the two-sided structures (panels) by friction stir welding, which is configured by butt-joining those arranged in the above, is described.

【０００６】かかる技術は、第１の板の端部と第２の板
の端部との突合わせ部のそれぞれの前記板の一方側の面
に裏当てを当てた状態で、他方側の面のみから回転工具
を前記突合わせ部に挿入して、前記突合わせ部を摩擦接
合するとともに該突合わせ部の前記一方側の面を実質的
に平に摩擦接合し、前記摩擦接合によって得られた物の
前記一方側の面を構造体の外面に位置させて、構造体を
製作することによって達成できるものである。According to such a technique, a backing is applied to one surface of each of the abutting portions of the end portions of the first plate and the end portion of the second plate, and the other surface is attached. A rotary tool was inserted into the abutting portion from only to frictionally join the abutting portion and the surface on the one side of the abutting portion was substantially flatly friction-joined, and was obtained by the friction welding. This can be achieved by manufacturing the structure by arranging the one side surface of the object on the outer surface of the structure.

【０００７】このような技術は、長尺な中空型材等の二
面構造体（パネル）を製造するのに適した技術である
が、航空機及び鉄道車両等の製造にあたっては前記フロ
ア用パネル等のハニカムパネル体のみならず、断面Ｔ字
状、Ｔ型、Ｌ字形、Ｉ型、Π型、又は∠型等になるよう
継手溶接された継手部材をハニカムパネル体の隅部等に
接合して鉄道車両等の構造体を製造する必要がある。[0007] Such a technique is suitable for producing a two-sided structure (panel) such as a long hollow material, but in the production of aircraft and railway vehicles, the above-mentioned floor panel and the like are used. Not only the honeycomb panel body, but also the joint member welded to have a T-shaped, T-shaped, L-shaped, I-shaped, Π-shaped, or ∠-shaped cross-section jointed to the corners of the honeycomb panel body, etc. It is necessary to manufacture structures such as vehicles.

【０００８】このような継手部材は、例えば、Ｔ形継手
の場合、水平面の主面に垂直板を立設して垂直板下端隅
部を継手溶接する必要がある。このような隅部を接合す
る際、前述の摩擦攪拌接合法を用いると、すみ肉は矩形
状であるために、工具のショルダ部がすみ肉に面接触す
ることができず、工具のショルダ部を当接しての摩擦撹
拌接合を行うことが難しい。In the case of such a joint member, for example, in the case of a T-shaped joint, it is necessary to vertically install a vertical plate on the main surface of the horizontal plane and joint-weld the lower corners of the vertical plate. When the above-mentioned friction stir welding method is used when joining such corners, since the fillet is rectangular, the shoulder portion of the tool cannot make surface contact with the fillet, and the shoulder portion of the tool It is difficult to perform friction stir welding by abutting against each other.

【０００９】このような不具合に対処するため、従来、
特開２００１−３２１９６５公報に記載された摩擦攪拌
によるすみ肉接合法が知られている（以下従来例と呼
ぶ）。In order to deal with such a defect, conventionally,
A fillet joining method by friction stirring described in JP 2001-321965 A is known (hereinafter referred to as a conventional example).

【００１０】従来例では、隅部が形成される二つの接合
部材（例えば、Ｔ継手）を摩擦攪拌接合する際、隅部に
断面直角三角形状の接合補助材を配置して、工具を回転
させつつ、そのプローブを接合部材の合わせ部（突き合
わせ部）に向かって接合補助材に挿入する。そして、工
具のショルダ部を接合補助材の外面に圧接させる。この
状態を保って、プローブを突き合わせ部に沿って相対的
に移動させて、摩擦攪拌接合によって接合部材同士の隅
部を接合している。In the conventional example, when two welding members (for example, T-joints) having corners are friction stir welded, a welding auxiliary material having a right-angled triangular cross section is arranged at the corners to rotate the tool. Meanwhile, the probe is inserted into the joining auxiliary material toward the joining portion (butting portion) of the joining member. Then, the shoulder portion of the tool is brought into pressure contact with the outer surface of the joining auxiliary material. In this state, the probe is relatively moved along the abutting portion, and the corner portions of the joining members are joined by friction stir welding.

【００１１】このように、従来例では、隅部に断面直角
三角形状の接合補助材を配置しているから、ショルダ部
が接合補助材の傾斜外面を面接触にて圧接して、摩擦攪
拌接合を行うことができる。As described above, in the conventional example, since the joining auxiliary member having a right-angled triangular cross section is arranged at the corner, the shoulder portion press-contacts the inclined outer surface of the joining auxiliary member by surface contact to perform friction stir welding. It can be performed.

【００１２】[0012]

【発明が解決しようとする課題】ところが、従来例で
は、Ｔ型継手等を摩擦攪拌接合によって接合する際、別
に接合補助材を準備しなければならず、このため、摩擦
攪拌接合を行う際のコストがアップしてしまうという課
題がある。However, in the conventional example, when joining a T-shaped joint or the like by friction stir welding, a separate joining auxiliary material must be prepared. Therefore, when performing friction stir welding, There is a problem that the cost will increase.

【００１３】さらに、従来例では、単に接合部材同士が
突き合わされているだけであるから、接合部材同士の位
置決め及びセッティングが難しく、しかもプローブを突
き合わせ部に沿って相対的に移動させる際、接合部材の
みならず、接合補助材が動かないように保持する必要が
あり、摩擦攪拌接合を行う際の工程が面倒になってしま
うという課題もある。Further, in the conventional example, since the joining members are simply butted against each other, it is difficult to position and set the joining members, and furthermore, when the probe is relatively moved along the butted part. Not only that, it is necessary to hold the joining auxiliary material so that it does not move, and there is also a problem that the process of performing friction stir welding becomes complicated.

【００１４】また、従来例では、主に接合補助材自体を
ショルダ部によって摩擦して摩擦攪拌接合を行っている
関係上、接合部材同士に直接的に摩擦熱が発生せず、こ
のため、接合が不十分となってしまうという課題があ
る。Further, in the conventional example, frictional heat is not directly generated between the joining members because the friction stir welding is mainly performed by rubbing the joining auxiliary material itself by the shoulder portion. There is a problem that it becomes insufficient.

【００１５】本発明の目的は、被加工物に摩擦熱を付与
する円形ショルダ面の中心軸線上にプローブが垂設され
た摩擦接合工具を用い、立設部材の下端を水平部材の主
面に当接した後、当接部にショルダ面を押圧摩擦回転さ
せながら、当接部を摩擦撹拌接合する際、容易にしかも
精度よく安価に摩擦攪拌接合を行うことのできる垂直若
しくは傾斜立設継手構造体を提供することにある。An object of the present invention is to use a friction welding tool in which a probe is hung vertically on the center axis of a circular shoulder surface for applying frictional heat to a workpiece, and the lower end of the standing member is placed on the main surface of the horizontal member. A vertical or inclined upright joint structure that allows friction stir welding to be performed easily and accurately at low cost when friction stir welding of the contact portion is performed while pressing and rotating the shoulder surface against the contact portion after contact. To provide the body.

【００１６】[0016]

【課題を解決するための手段】本発明は、Ｔ型、Ｌ字
形、Ｉ型、Π型、及び∠型等の垂直若しくは傾斜立設継
手構造体を摩擦攪拌接合にて容易にしかも精度よく製造
する方法にある。According to the present invention, vertical or inclined standing joint structures such as T type, L type, I type, Π type and ∠ type can be easily and accurately manufactured by friction stir welding. There is a way to do it.

【００１７】本発明は、被加工物に摩擦熱を付与する円
形ショルダ面の中心軸線上にプローブが垂設された摩擦
接合工具を用い、立設部材の下端を水平部材の主面に当
接した後、前記当接部にショルダ面を押圧摩擦回転させ
ながら、前記当接部を摩擦撹拌接合した垂直若しくは傾
斜立設継手構造体において、前記立設部材の下端とその
下端当接位置に対応する水平部材の主面部位に互いに係
合する凹凸部を形成するとともに、該凹凸面の係合によ
り形成されるショルダ当接面が前記ショルダ直径より大
なる幅域であることを特徴とするものである。The present invention uses a friction welding tool in which a probe is vertically provided on the center axis of a circular shoulder surface for applying frictional heat to a workpiece, and the lower end of the standing member is brought into contact with the main surface of the horizontal member. Then, in the vertical or inclined standing joint structure in which the contact portion is friction stir welded while pressing and rotating the shoulder surface against the contact portion, the lower end of the standing member and the lower end contact position thereof are corresponded. Forming a concavo-convex portion that engages with each other on the main surface portion of the horizontal member, and the shoulder contact surface formed by the engagement of the concavo-convex surface has a width range larger than the shoulder diameter. Is.

【００１８】このようにすれば、補助接合部材を必要と
することなく、隅部を摩擦攪拌接合することができ、コ
ストを低減することができる。さらに、摩擦攪拌接合を
行う際、水平部材に立設部材の端部と水平部材の主面と
の間の凹凸部を係合するだけで、垂直維持等の位置決め
及びセッティングが極めて容易となり、又前記係合によ
りショルダ当接面が自動的に形成されるから、該当接面
を利用して精度よく摩擦攪拌接合を行うことができる。
この結果従来技術のように接合補助材を用いる必要がな
いために、摩擦攪拌接合を行う際の工程が非常に容易に
なる。With this configuration, the corners can be friction stir welded without the need for an auxiliary welding member, and the cost can be reduced. Furthermore, when performing friction stir welding, positioning and setting such as vertical maintenance becomes extremely easy only by engaging the uneven portion between the end of the standing member and the main surface of the horizontal member with the horizontal member. Since the shoulder contact surface is automatically formed by the engagement, the friction stir welding can be performed accurately by using the contact surface.
As a result, it is not necessary to use a joining auxiliary material as in the prior art, and therefore the step of performing friction stir welding becomes very easy.

【００１９】そして本発明の具体的な構成は、前記ショ
ルダ当接面が、水平部材と立設部材の両者にまたがって
傾斜平面若しくは水平平面上に形成されている。これに
より前記傾斜平面若しくは水平平面上に形成されている
凹凸係合部の接合線に沿って容易に精度よく摩擦攪拌接
合を行うことができる。また、前記ショルダ当接面を立
設部材の左右両側に対称に形成するようにしてもよい。
これにより一方熱歪みが生じることなく、垂直若しくは
所定傾斜角度を維持して精度良く摩擦攪拌接合を行うこ
とができる。Further, in a specific configuration of the present invention, the shoulder contact surface is formed on an inclined plane or a horizontal plane across both the horizontal member and the standing member. Thus, friction stir welding can be easily and accurately performed along the joining line of the concave and convex engaging portions formed on the inclined plane or the horizontal plane. Further, the shoulder contact surfaces may be formed symmetrically on both left and right sides of the standing member.
As a result, on the other hand, friction stir welding can be performed accurately while maintaining vertical or a predetermined inclination angle without causing thermal strain.

【００２０】さらに、本発明では、前記凹凸部の少なく
とも一面に垂直立設部材を垂直に支持するための水平支
持面を有している。水平支持面のために、その両側の接
合線上に摩擦撹拌接合の塑性流動が生成されてもそれに
引っ張られることなく、水平支持面で立設部材の垂直若
しくは所定傾斜角度を維持して精度良く摩擦攪拌接合を
行うことができる。Further, in the present invention, at least one surface of the uneven portion has a horizontal support surface for vertically supporting the vertical standing member. Due to the horizontal support surface, even if the plastic flow of friction stir welding is generated on the joint lines on both sides of the horizontal support surface, it is not pulled by it, and the vertical support or vertical inclination angle of the standing member is maintained on the horizontal support surface for accurate friction. Stir welding can be performed.

【００２１】そして、例えば、前記立設部材の凸部は左
右対称断面略山型形状(山型には水平支持面を有する逆
台形も含む)であり、これと係合する水平部材の凹部す
そ野部分が***した谷形状であり、前記凸部の幅方向傾
斜面と水平部材のすそ野部分によって傾斜面として規定
された平面が、前記ショルダ直径より大なる幅域として
形成される。この場合は、傾斜面として規定された平面
に直交してショルダ面が斜めに当接して摩擦攪拌接合を
行うことができる。[0021] For example, the convex portion of the standing member has a substantially symmetric cross-sectional shape in a chevron shape (the chevron shape includes an inverted trapezoid having a horizontal support surface), and the recess base of the horizontal member engaged with the convex portion. A flat surface, which has a raised valley shape and is defined as an inclined surface by the width direction inclined surface of the convex portion and the skirt portion of the horizontal member, is formed as a width region larger than the shoulder diameter. In this case, the shoulder surface obliquely abuts the plane defined as the inclined surface and friction stir welding can be performed.

【００２２】また、前記立設部材の凸部はその上面が前
記主面部位に平行な面であり、前記凸部の上面と前記立
設部材の端部とによって前記接合部を前記主面部位に対
して平行とする水平面であるようにしてもよい。加え
て、前記立設部材の下端が左右水平方向に延在する水平
支持部位であり、該水平支持部位に嵌合する水平部材を
矩形状に凹設し、該凹設部位と前記水平支持部位を凹設
した際に水平部材の主面が面一になるように構成するよ
うにしてもよい。この場合は、水平面に直交する垂直方
向にショルダを位置させて摩擦攪拌接合を行うことがで
きるために、極めて効率的である。The upper surface of the convex portion of the standing member is parallel to the main surface portion, and the joint portion is formed by the upper surface of the convex portion and the end portion of the standing member. It may be a horizontal plane parallel to. In addition, the lower end of the standing member is a horizontal support portion that extends in the left-right horizontal direction, and a horizontal member that fits into the horizontal support portion is recessed in a rectangular shape, and the recessed portion and the horizontal support portion are provided. The main surface of the horizontal member may be configured to be flush when the recess is provided. In this case, the friction stir welding can be performed by locating the shoulder in the vertical direction orthogonal to the horizontal plane, which is extremely efficient.

【００２３】また、前記立設部材の下端が左右水平方向
に延在する水平支持部位であり、該水平支持部位に嵌合
する水平部材を矩形状に凹設した凹設部材を平面状***
部に形成するとともに、該***部と水平支持部位の上面
が面一であり、その左右夫々の面一部が前記ショルダ直
径より大なる幅域であるようにしてもよい。これにより
摩擦撹拌接合によって生じた隙間部が前記平面状***部
によって充填されてほぼ面一になり、後加工が容易であ
る。Further, the lower end of the standing member is a horizontal support portion extending in the horizontal direction in the horizontal direction, and the horizontal member fitted to the horizontal support portion is formed into a rectangular shape by recessing the horizontal member into a planar raised portion. The upper surface of the raised portion and the horizontal support portion may be flush with each other, and part of each of the left and right surfaces may have a width range larger than the shoulder diameter. As a result, the clearance created by the friction stir welding is filled with the planar ridge and becomes substantially flush, and post-processing is easy.

【００２４】さらに、本発明によれば、被加工物に摩擦
熱を付与する円形ショルダ面の中心軸線上にプローブが
垂設された摩擦接合工具を用い、立設部材の下端を水平
部材の主面に当接した後、前記当接部にショルダ面を押
圧摩擦回転させながら、前記当接部を摩擦撹拌接合した
垂直若しくは傾斜立設継手構造体において、前記立設部
材の下端が左右水平方向に延在する水平支持部位であ
り、該水平支持部位が前記ショルダ直径より大なる幅域
であることを特徴とする垂直若しくは傾斜立設継手構造
体が得られる。Further, according to the present invention, a friction welding tool in which a probe is hung vertically on the central axis of a circular shoulder surface for applying frictional heat to a work is used, and the lower end of the standing member is the main member of the horizontal member. In a vertical or inclined standing joint structure in which the contact portion is friction stir welded while pressing and rotating the shoulder surface against the contact portion after contacting the surface, the lower end of the standing member is in the left-right horizontal direction. A vertical or inclined standing joint structure is obtained, which is a horizontal support portion extending in the horizontal direction, and the horizontal support portion has a width region larger than the shoulder diameter.

【００２５】このようにすれば、水平部材の主面に立設
部材の下端当接させるだけでよく、立設部材の接合位置
を任意に設定することができる。With this arrangement, it is only necessary to bring the lower end of the standing member into contact with the main surface of the horizontal member, and the joining position of the standing member can be set arbitrarily.

【００２６】[0026]

【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照して説明する。なお、図示の例に記載され
た構成部品の寸法、材質、形状、その相対的配置等は特
に限定的な記載がない限り、この発明の範囲をそれに限
定する趣旨ではなく、単なる説明例にすぎない。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the dimensions, materials, shapes, relative arrangements, and the like of the components described in the illustrated examples are not intended to limit the scope of the present invention thereto unless otherwise specified, but are merely illustrative examples. Absent.

【００２７】図１を参照して、ここでは、長手方向（図
１において、紙面の表側から裏側に向かう方向）に延び
る水平板状部材（水平部材）１１の主面の溝部（凹部）
に対して、同様に長手方向に延びる垂直板状部材（立設
部材）１２の下端凸部２２を係合した状態で垂直に位置
保持させて接合して、所謂Ｔ字状継手を形成する場合に
ついて説明する。Referring to FIG. 1, here, a groove (recess) of the main surface of a horizontal plate member (horizontal member) 11 extending in the longitudinal direction (the direction from the front side to the back side of the paper in FIG. 1).
On the other hand, in the case where a so-called T-shaped joint is formed by vertically holding and joining the lower end protrusions 22 of the vertical plate-shaped members (standing members) 12 that also extend in the longitudinal direction in an engaged state. Will be described.

【００２８】水平板状部材１１は、長手方向に延びる長
尺板材であり、例えば、約２５メートル程度の板材であ
る。同様に、垂直板状部材１２も、長手方向に延びる長
尺板材であり、例えば、約２５メートル程度の板材であ
る。水平及び垂直板状部材１１及び１２は、例えば、ア
ルミニウム合金製のプレス若しくは押し出し成形部材で
あり、水平板状部材１１の主面（一面）溝部（凹部）２
１に垂直板状部材１２の下端凸部２２が係合されてその
凹凸係合位置にある左右対称の傾斜面が、前記ショルダ
当接面として、水平部材と立設部材の両者にまたがって
傾斜平面Ｓとなす。そして、後述するように、傾斜平面
Ｓをショルダ当接部として摩擦攪拌接合によって接合し
て水平及び垂直板状部材１１及び１２を接合してＴ型継
手を形成する。The horizontal plate member 11 is a long plate member extending in the longitudinal direction, for example, a plate member having a length of about 25 meters. Similarly, the vertical plate member 12 is also a long plate member extending in the longitudinal direction, for example, a plate member having a length of about 25 meters. The horizontal and vertical plate-shaped members 11 and 12 are, for example, aluminum alloy press or extrusion molded members, and the main surface (one surface) of the horizontal plate-shaped member 11 is a groove (recess) 2
1 is engaged with the lower end convex portion 22 of the vertical plate member 12 and a symmetrical sloping surface at the concave and convex engaging position is inclined as a shoulder contact surface across both the horizontal member and the upright member. Form the plane S. Then, as will be described later, the inclined plane S is used as a shoulder contact portion to be joined by friction stir welding to join the horizontal and vertical plate members 11 and 12 to form a T-shaped joint.

【００２９】図１に示すように、水平板状部材１１の主
面には長手方向に延びる断面三角形状の凸部２２，２３
とその間に水平支持面を有する台形溝部（凹部）２１が
形成されている。溝部２１は幅方向に予め定められた間
隔をおいて水平板状部材１１の主面上に形成された一対
の凸部２２及び２３によって規定されており、これら凸
部２２及び２３は長手方向に延びている。図１に示す例
では、凸部２２及び２３は山型形状であり、各凸部２２
及び２３はそれぞれ内側に位置する内側面２２ａ及び２
３ａと外側に位置する外側面２２ｂ及び２３ｂとを有し
ている。つまり、溝部２１はその裾野部分が***した谷
形状となっている。As shown in FIG. 1, on the main surface of the horizontal plate-shaped member 11, convex portions 22 and 23 having a triangular cross section extending in the longitudinal direction.
A trapezoidal groove portion (recess) 21 having a horizontal support surface is formed between them. The groove portion 21 is defined by a pair of convex portions 22 and 23 formed on the main surface of the horizontal plate-shaped member 11 at predetermined intervals in the width direction, and these convex portions 22 and 23 extend in the longitudinal direction. It is extended. In the example shown in FIG. 1, the convex portions 22 and 23 have a mountain shape, and each convex portion 22
And 23 are inside surfaces 22a and 2 located inside, respectively.
3a and the outer side surfaces 22b and 23b located on the outer side. That is, the groove 21 has a valley shape in which the skirt portion is raised.

【００３０】垂直板状部材１２の端部には溝部２１に係
合する凸部体３１が形成されている。つまり、凸部体３
１は溝部２１の底面（つまり、水平板状部材１１の主
面）１１ａに当接する端面３１ａとこの端面３１ａの両
端から図中斜め上方向に延びる一対の斜面（内斜面）３
１ｂ及び３１ｃとを有している。この結果、凸部体３１
は外側に面する一対の斜面（外斜面）３１ｄ及び３１ｅ
を有することになる。つまり、凸部体３１は左右対称断
面略山型形状である。なお、水平及び垂直板状部材１１
及び１２を押し出し成形する際に、前述の溝部２１及び
凸部体３１はそれぞれ水平及び垂直板状部材１１及び１
２に形成されることになる。At the end of the vertical plate member 12, a convex body 31 that engages with the groove 21 is formed. That is, the convex body 3
Reference numeral 1 denotes an end surface 31a that abuts a bottom surface (that is, a main surface of the horizontal plate member 11) 11a of the groove portion 21 and a pair of slopes (inner slopes) 3 that extend obliquely upward in the drawing from both ends of the end surface 31a.
1b and 31c. As a result, the convex body 31
Is a pair of outwardly facing slopes (outer slopes) 31d and 31e
Will have. That is, the convex portion 31 has a bilaterally symmetrical cross-section substantially mountain-shaped. The horizontal and vertical plate members 11
2 and 12 are extruded, the groove 21 and the convex body 31 described above have the horizontal and vertical plate members 11 and 1 respectively.
2 will be formed.

【００３１】ここで、図２も参照して、水平板状部材１
１の溝部２１に垂直板状部材１２の端部である凸部体３
１を係合すると、溝部２１の底面１１ａに凸部体３１の
端面３１ａが当接するとともに、内側面２２ａ及び２３
ａにそれぞれ内斜面３１ｂ及び３１ｃが当接する。この
際、溝部２１の底面１１ａ及び凹部体３１の端面３１ａ
によって水平支持される。そして、外側面２２ｂと外斜
面３１ｄとが同一傾斜面（以下接合斜面４１ａと呼ぶ）
を規定し、外側面２３ｂと外斜面３１ｅとが同一傾斜面
（以下接合斜面４１ｂと呼ぶ）を規定する。このように
して、溝部２１及び凸部体３１によって接合部が規定さ
れ、後述するようにして、接合斜面４１ａ及び４１ｂか
ら摩擦接合工具が挿入されることになる。Here, referring also to FIG. 2, the horizontal plate-shaped member 1
The convex portion 3 which is the end portion of the vertical plate member 12 in the groove portion 21 of No. 1
When 1 is engaged, the end surface 31a of the convex body 31 comes into contact with the bottom surface 11a of the groove portion 21 and the inner side surfaces 22a and 23
The inner slopes 31b and 31c contact a, respectively. At this time, the bottom surface 11 a of the groove portion 21 and the end surface 31 a of the recessed body 31
Horizontally supported by. Then, the outer surface 22b and the outer slope 31d have the same slope (hereinafter referred to as the joint slope 41a).
The outer side surface 23b and the outer slope surface 31e define the same inclined surface (hereinafter, referred to as a joint slope surface 41b). In this way, the joint portion is defined by the groove portion 21 and the convex portion 31, and the friction welding tool is inserted from the joint slopes 41a and 41b as described later.

【００３２】ここで、図２及び図３を参照して、水平板
状部材１１及び垂直板状部材１２とを接合してＴ字型継
手を形成する際には、前述のようにして、水平板状部材
１１の溝部２１に垂直板状部材１２の端部である凸部体
３１を係合される。この際、水平板状部材１１は架台
（図示せず）に載せられ、移動しないように固定され、
この状態で垂直板状部材１２が水平板状部材１１に係合
される。そして、垂直板状部材１２は支持体（図示せ
ず）によって固定支持される。Here, referring to FIGS. 2 and 3, when the horizontal plate member 11 and the vertical plate member 12 are joined to form a T-shaped joint, as described above, The convex portion 31, which is the end of the vertical plate member 12, is engaged with the groove portion 21 of the plate member 11. At this time, the horizontal plate member 11 is placed on a pedestal (not shown) and fixed so as not to move,
In this state, the vertical plate member 12 is engaged with the horizontal plate member 11. The vertical plate member 12 is fixedly supported by a support (not shown).

【００３３】図３に示すように、ここでは、摩擦接合工
具として、工具５１が用いられ、工具５１はショルダ部
５１ａとこのショルダ部５１ａに備えられてピン（プロ
ーブ）５１ｂとを有しており、ショルダ部５１ａには被
加工物に摩擦熱を付与する円形ショルダ面が規定されて
いる。そして、円形ショルダ面の中心軸線上にプローブ
５１ｂが垂設されている。いま、ショルダ部５１ａ、つ
まり、円形ショルダ面の径（直径）をＢとし、接合斜面
４１ａ及び４１ｂの幅をＳとすると、Ｓ≧Ｂに規定され
る。例えば、Ｓ＝１〜３×Ｂに規定される。一方、内斜
面３１ｂ及び３１ｃ（内側面２２ａ及び２３ａ）の深さ
（裾野の長さ）をｈ、プローブの長さをＰとすると、ｈ
≦Ｐに規定される（望ましくは、ｈ＝Ｐに規定され
る）。As shown in FIG. 3, here, a tool 51 is used as a friction welding tool, and the tool 51 has a shoulder portion 51a and a pin (probe) 51b provided on the shoulder portion 51a. A circular shoulder surface that applies frictional heat to the work piece is defined in the shoulder portion 51a. The probe 51b is vertically provided on the central axis of the circular shoulder surface. Now, assuming that the diameter (diameter) of the shoulder portion 51a, that is, the circular shoulder surface is B and the width of the joint slopes 41a and 41b is S, S ≧ B is defined. For example, S = 1 to 3 × B is specified. On the other hand, if the depths of the inner slopes 31b and 31c (inner side surfaces 22a and 23a) (the length of the skirt) are h and the length of the probe is P, then h
≦ P (preferably, h = P).

【００３４】摩擦攪拌接合を行う際には、工具５１を回
転させつつ、プローブ５１ｂを接合部、つまり、溝部２
１と凸部体３１との当接面（隙間）に挿入して、接合部
に沿って（図１において実線矢印で示す方向に）工具５
１を移動させる。この際、プローブ５１ｂの回転中心
は、水平及び垂直板状部材１１及び１２の間にある（つ
まり、溝部２１と凸部体３１との間にある）。そして、
摩擦攪拌接合の際には、ショルダ部５１ａが接合斜面４
１ａ及び４１ｂに押しつけられることになる。なお、摩
擦攪拌接合に当たっては、例えば、工具５１の回転数は
８００〜２０００ｒｐｍ、送り速度（工具５１の移動速
度）は１００〜１０００ｍｍ／分とされる。When friction stir welding is performed, the tool 51 is rotated and the probe 51b is joined to the joining portion, that is, the groove portion 2.
1 into the contact surface (gap) between the convex portion 31 and the tool 5 along the joint (in the direction indicated by the solid arrow in FIG. 1).
Move 1 At this time, the center of rotation of the probe 51b is between the horizontal and vertical plate members 11 and 12 (that is, between the groove 21 and the convex body 31). And
At the time of friction stir welding, the shoulder portion 51a is connected to the inclined slope 4
It will be pressed against 1a and 41b. In the friction stir welding, for example, the rotation speed of the tool 51 is 800 to 2000 rpm, and the feed speed (moving speed of the tool 51) is 100 to 1000 mm / min.

【００３５】前述のようにして、工具５１を用いて摩擦
攪拌接合を行うと、図４に示すように、水平及び垂直板
状部材１１及び１２は接合部において摩擦攪拌接合され
ることになり、接合部には接合ビード５２が形成され
る。この接合ビード５２は溝部２１と凸部体３１との当
接面の延長線上にその幅の中心が位置する。接合ビード
５１の深さは接合部に挿入したプローブ５１ｂの高さ
（長さ）によって決定される。つまり、プローブ５１ｂ
の長さに応じて図４又は図５に示すように接合ビードの
深さが決定されることになる。When friction stir welding is performed using the tool 51 as described above, the horizontal and vertical plate members 11 and 12 are friction stir welded at the joints as shown in FIG. A joining bead 52 is formed at the joining portion. The center of the width of the joining bead 52 is located on the extension line of the contact surface between the groove 21 and the convex body 31. The depth of the bonding bead 51 is determined by the height (length) of the probe 51b inserted in the bonding portion. That is, the probe 51b
The depth of the joining bead is determined as shown in FIG. 4 or FIG.

【００３６】このように、図１〜図５に示す例では、水
平及び垂直板状部材１１及び１２を接合してＴ字型継手
とする際、つまり、水平及び垂直板状部材１１及び１２
を接合部である隅肉部で接合する際、補助接合部材を必
要とすることなく、隅部を摩擦攪拌接合することができ
る。しかも、前述の溝部及び凸部体には押し出し成形に
よって容易に形成することができるから、Ｔ字型継手を
形成する際のコストを低減することができることにな
る。As described above, in the example shown in FIGS. 1 to 5, when the horizontal and vertical plate members 11 and 12 are joined to form a T-shaped joint, that is, the horizontal and vertical plate members 11 and 12 are joined.
When joining at the fillet portion which is the joining portion, the corner portion can be friction stir welded without the need for an auxiliary joining member. Moreover, since the groove and the convex body can be easily formed by extrusion molding, the cost for forming the T-shaped joint can be reduced.

【００３７】さらに、図１〜図５に示す例では、摩擦攪
拌接合を行う際、左右に***傾斜面を有する溝部２１に
左右に前記傾斜面と面一状態で傾斜面を有する凸部体３
１を係合セッティングした後に摩擦攪拌接合すればよい
から、位置決め及びセッティングが極めて容易となり、
精度よく摩擦攪拌接合を行うことができるという利点が
ある。そして、前述のように、接合斜面４１ａ及び４１
ｂの幅≧ショルダ部５１ａの直径に規定したから、摩擦
攪拌接合の際、ショルダ部５１ａによって接合部を均等
に押圧することができ、この点においても、精度よく摩
擦攪拌接合を行うことができることになる。なお、プロ
ーブ５１ｂの長さは、内斜面３１ｂ及び３１ｃの深さに
応じて適宜設定される。Further, in the example shown in FIGS. 1 to 5, when performing friction stir welding, the convex portion 3 having the inclined surfaces which are flush with the inclined surfaces on the left and right sides in the groove portion 21 having the raised inclined surfaces on the left and right sides.
Since friction stir welding can be performed after engaging and setting No. 1, positioning and setting are extremely easy,
There is an advantage that the friction stir welding can be performed accurately. Then, as described above, the joining slopes 41a and 41
Since the width b is defined to be greater than or equal to the diameter of the shoulder portion 51a, the joint portion can be uniformly pressed by the shoulder portion 51a during friction stir welding, and also in this respect, friction stir welding can be performed accurately. become. The length of the probe 51b is appropriately set according to the depths of the inner slopes 31b and 31c.

【００３８】図６を参照して、図示の例では、垂直板状
部材の下端が左右水平方向に延在する水平支持板(フラ
ンジ部)であり、該水平支持板に嵌合する水平板状部材
の主面を矩形状に薄肉板状に平面矩形状に***させると
ともに、該***部に矩形状に凹設した凹設部を形成する
とともに、該***部と水平支持部位の上面が面一であ
り、その左右夫々の面一部が前記ショルダ直径より大な
る幅域に設定してある。即ち***部の左右両側の凸部２
２及び２３はその上面２２ｃ及び２３ｃが水平板状部材
１１の主面に対して平行となっている（これら上面２２
ｃ及び２３ｃは長手方向に延びている）。そして、図６
に示す例では、内側面２２ａ及び２３ａと外側面２２ｂ
及び２３ｂとは水平板状部材１１の主面に対して垂直と
なっており、凸部２２及び２３によって水平支持面とし
て機能する溝部２１が規定されている。With reference to FIG. 6, in the illustrated example, the lower end of the vertical plate-shaped member is a horizontal support plate (flange portion) extending horizontally in the left-right direction, and a horizontal plate-shaped member fitted to the horizontal support plate. The main surface of the member is raised in the shape of a flat plate in the shape of a thin plate in the shape of a rectangle, and a recessed portion that is recessed in the shape of a rectangle is formed in the raised portion, and the upper surface of the raised portion and the horizontal support portion are flush. A part of each of the left and right surfaces is set to a width range larger than the shoulder diameter. That is, the convex portions 2 on both the left and right sides of the raised portion
The upper surfaces 22c and 23c of 2 and 23 are parallel to the main surface of the horizontal plate-like member 11 (the upper surfaces 22c and 23c).
c and 23c extend longitudinally). And FIG.
In the example shown in, the inner side surfaces 22a and 23a and the outer side surface 22b are
And 23b are perpendicular to the main surface of the horizontal plate member 11, and the convex portions 22 and 23 define the groove portion 21 functioning as a horizontal support surface.

【００３９】一方、垂直板状部材１２の端部には、溝部
２１に係合するフランジ部（当接部：水平支持部位）２
４が形成されており、このフランジ部２４は長手方向に
延びるとともに幅方向に水平板状部材１１の主面に対し
て平行となっている。なお、フランジ部２４の高さ（図
中上下方向）は溝部の深さ（つまり、凸部２２及び２３
の高さ）と同一である。また、フランジ部２４の幅（図
中左右方向）は溝部２１の幅に等しい。On the other hand, at the end of the vertical plate member 12, a flange portion (abutting portion: horizontal supporting portion) 2 that engages with the groove portion 2 is formed.
4 is formed, and the flange portion 24 extends in the longitudinal direction and is parallel to the main surface of the horizontal plate member 11 in the width direction. The height of the flange portion 24 (vertical direction in the drawing) is the depth of the groove portion (that is, the convex portions 22 and 23).
Height). Further, the width of the flange portion 24 (the left-right direction in the drawing) is equal to the width of the groove portion 21.

【００４０】水平板状部材１１及び垂直板状部材１２と
を接合してＴ字型継手を形成する際には、水平板状部材
１１の溝部２１に垂直板状部材１２の端部であるフラン
ジ部２４を係合する。これによって、フランジ部２４の
外面は凸部２２及び２３の内側面２２ａ及び２３ａに当
接する（この際わずかな隙間ができる）。この際、水平
板状部材１１は架台に載せられ、移動しないように固定
され、この状態で垂直板状部材１２が水平板状部材１１
に係合される。そして、垂直板状部材１２は支持体によ
って固定支持される。前述のように、フランジ部２４の
高さは溝部の深さと同一であるから、凸部２２及び２３
の上面２２ｃ及び２３ｃとフランジ部２４の上面とは実
質的に同一平面を形成し、この平面は水平板状部材１１
の主面と平行になる。When the horizontal plate-shaped member 11 and the vertical plate-shaped member 12 are joined to form a T-shaped joint, the flange 21 which is the end of the vertical plate-shaped member 12 is formed in the groove 21 of the horizontal plate-shaped member 11. Engage part 24. As a result, the outer surface of the flange 24 abuts the inner surfaces 22a and 23a of the protrusions 22 and 23 (at this time, a slight gap is formed). At this time, the horizontal plate-shaped member 11 is placed on a pedestal and fixed so as not to move, and in this state, the vertical plate-shaped member 12 is
Is engaged with. The vertical plate member 12 is fixedly supported by the support. As described above, since the height of the flange portion 24 is the same as the depth of the groove portion, the convex portions 22 and 23 are
The upper surfaces 22c and 23c of the flange and the upper surface of the flange portion 24 form substantially the same plane, and this plane is the horizontal plate member 11.
It becomes parallel to the main surface of.

【００４１】上述の状態において、垂直板状部材１２の
中心軸（図中上下方向に延びる軸）は溝部の中心軸と一
致している（なお、垂直板状部材１２の中心軸は必ずし
も溝部の中心軸と一致していなくてもよい）。垂直板状
部材１２の一面（図６において、左側面）から凸部２２
の外側面２２ｂまでの距離をＳとすると（同様に、垂直
板状部材１２の他面（図６において、右側面）から凸部
２３の外側面２３ｂまでの距離はＳである）、Ｓ≧Ｂ
（Ｂは工具５１のショルダ部５１ａの直径）とされると
ともに、上述の凸部２２及び２３の上面２２ｃ及び２３
ｃの幅ＤはＤ≧Ｂ／２とされる（例えば、Ｓ＝１〜４×
Ｂに規定される）。また、凸部２２及び２３の高さをｈ
とすると、ｈ≦Ｐ（Ｐはプローブ５１ｂの長さ）とされ
る。In the above-mentioned state, the central axis of the vertical plate member 12 (the axis extending in the vertical direction in the figure) coincides with the central axis of the groove portion (note that the central axis of the vertical plate member 12 does not necessarily correspond to the groove portion). Does not have to coincide with the central axis). From one surface (the left side surface in FIG. 6) of the vertical plate member 12 to the convex portion 22.
S is the distance to the outer surface 22b of the vertical plate member 12 (similarly, the distance from the other surface of the vertical plate member 12 (the right side surface in FIG. 6) to the outer surface 23b of the protrusion 23 is S). B
(B is the diameter of the shoulder portion 51a of the tool 51), and the upper surfaces 22c and 23 of the convex portions 22 and 23 described above.
The width D of c is D ≧ B / 2 (for example, S = 1 to 4 ×).
B)). In addition, the height of the convex portions 22 and 23 is
Then, h ≦ P (P is the length of the probe 51b).

【００４２】摩擦攪拌接合を行う際には、工具５１を回
転させつつ、プローブ５１ｂを接合部、つまり、溝部２
１とフランジ部２４との当接面（隙間）に挿入して、接
合部に沿って（図６において紙面表側から裏側に向かう
方向に）工具５１を移動させる。この際、プローブ５１
ｂの回転中心は、水平及び垂直板状部材１１及び１２の
間にある（つまり、溝部２１とフランジ部２４との間に
ある）。そして、摩擦攪拌接合の際には、ショルダ部５
１ａが凸部２２及び２３の上面２２ｃ及び２３ｃとフラ
ンジ部２４の上面に押しつけられることになる。なお、
摩擦攪拌接合に当たっては、例えば、工具５１の回転数
は８００〜２０００ｒｐｍ、送り速度（工具５１の移動
速度）は１００〜１０００ｍｍ／分とされる。When performing the friction stir welding, the probe 51b is joined to the joining portion, that is, the groove portion 2 while rotating the tool 51.
1 is inserted into the contact surface (gap) of the flange portion 24, and the tool 51 is moved along the joint portion (in the direction from the front side to the back side in FIG. 6). At this time, the probe 51
The center of rotation of b is between the horizontal and vertical plate members 11 and 12 (that is, between the groove portion 21 and the flange portion 24). Then, at the time of friction stir welding, the shoulder portion 5
1a is pressed against the upper surfaces 22c and 23c of the convex portions 22 and 23 and the upper surface of the flange portion 24. In addition,
In the friction stir welding, for example, the rotation speed of the tool 51 is 800 to 2000 rpm, and the feed speed (moving speed of the tool 51) is 100 to 1000 mm / min.

【００４３】このようにして、工具５１を用いて摩擦攪
拌接合を行うと、水平及び垂直板状部材１１及び１２は
接合部において摩擦攪拌接合されることになり、接合部
には接合ビード（図示せず）が形成される。この接合ビ
ードは溝部２１とフランジ部２４との当接面の延長線上
にその幅の中心が位置する。接合ビードの深さは接合部
に挿入したプローブ５１ｂの高さ（長さ）によって決定
される。When the friction stir welding is performed using the tool 51 in this manner, the horizontal and vertical plate members 11 and 12 are friction stir welded at the joint portion, and the weld bead (Fig. (Not shown) is formed. The center of the width of the joining bead is located on the extension line of the contact surface between the groove portion 21 and the flange portion 24. The depth of the bonding bead is determined by the height (length) of the probe 51b inserted in the bonding portion.

【００４４】このように、図６に示す例では、水平及び
垂直板状部材１１及び１２を接合してＴ字型継手とする
際、補助接合部材を必要とすることなく、摩擦攪拌接合
することができる。しかも、前述の溝部及びフランジ部
は押し出し成形によって容易に形成することができるか
ら、Ｔ字型継手を形成する際のコストを低減することが
できることになる。As described above, in the example shown in FIG. 6, when the horizontal and vertical plate members 11 and 12 are joined to form a T-shaped joint, friction stir welding is performed without the need for an auxiliary joining member. You can Moreover, since the above-mentioned groove portion and flange portion can be easily formed by extrusion molding, the cost for forming the T-shaped joint can be reduced.

【００４５】さらに、図６に示す例では、摩擦攪拌接合
を行う際、溝部２１にフランジ部２４を係合すればよい
から、位置決め及びセッティングが極めて容易となり、
精度よく摩擦攪拌接合を行うことができるという利点が
ある。そして、前述のように、垂直板状部材１２の一面
から凸部の外側面までの距離≧ショルダ部５１ａの直径
に規定したから、摩擦攪拌接合の際、ショルダ部５１ａ
によって接合部を均等に押圧することができ、この点に
おいても、精度よく摩擦攪拌接合を行うことができるこ
とになる。なお、プローブ５１ｂの長さは、凸部２２及
び２３の高さに応じて適宜設定される。また、水平板状
部材に矩形状に凹設した凹設部を平面状***部に形成し
て、水平支持部位であるフランジ部２４を凹設部に係合
し、***部と水平支持部位の上面とを面一とするように
してもよい。Further, in the example shown in FIG. 6, when the friction stir welding is performed, the flange portion 24 may be engaged with the groove portion 21, so that the positioning and setting are extremely easy,
There is an advantage that the friction stir welding can be performed accurately. Then, as described above, the distance from one surface of the vertical plate member 12 to the outer surface of the convex portion is defined to be ≧ the diameter of the shoulder portion 51a. Therefore, at the time of friction stir welding, the shoulder portion 51a is used.
The joint portion can be evenly pressed by this, and in this respect also, friction stir welding can be performed with high accuracy. The length of the probe 51b is appropriately set according to the height of the convex portions 22 and 23. In addition, a rectangular recessed portion is formed in the horizontal plate-shaped member in a planar ridged portion, and the flange portion 24, which is a horizontal support portion, is engaged with the recessed portion, and the ridged portion and the horizontal support portion are formed. You may make it flush with the upper surface.

【００４６】図７を参照して更に前記垂直板状部材の下
端が左右水平方向に延在する水平支持部位(フランジ部)
であり、該水平支持部位に嵌合する水平板状部材の主面
を矩形状に凹設し、該凹設部位と前記水平支持部位を嵌
合した際に水平部材の主面が面一になるように構成した
ものである。With reference to FIG. 7, the lower end of the vertical plate-shaped member further extends horizontally in the horizontal direction (flange portion).
The main surface of the horizontal plate member that fits into the horizontal support portion is recessed in a rectangular shape, and the main surface of the horizontal member is flush when the recessed portion and the horizontal support portion are fitted together. It is configured to be.

【００４７】図示の例では、水平板状部材１１には長手
方向に延びる矩形状溝部２５が形成されている。この溝
部２５は主面に平行な底面２５ａと主面に対して垂直な
壁面２５ｂ及び２５ｃとを有しており、垂直板状部材１
２の端部に形成されたフランジ部２４の高さと溝部２５
の深さとは等しくなっている。そして、フランジ部２４
の幅（図中左右方向）は溝部２５の幅に等しい。In the illustrated example, a rectangular groove 25 extending in the longitudinal direction is formed in the horizontal plate member 11. The groove 25 has a bottom surface 25a parallel to the main surface and wall surfaces 25b and 25c perpendicular to the main surface.
The height of the flange 24 and the groove 25 formed at the end of
Is equal to the depth of. And the flange portion 24
Has the same width as the width of the groove 25.

【００４８】水平板状部材１１及び垂直板状部材１２と
を接合してＴ字型継手を形成する際には、水平板状部材
１１の溝部２５に垂直板状部材１２の端部であるフラン
ジ部２４を係合する。これによって、フランジ部２４の
外面は溝部２５の壁面２５ｂ及び２５ｃに嵌合当接す
る。この際、水平板状部材１１は架台に載せられ、移動
しないように固定され、この状態で垂直板状部材１２が
水平板状部材１１に係合される。そして、垂直板状部材
１２は支持体によって固定支持される。前述のように、
フランジ部２４の高さは溝部２５の深さと同一であるか
ら、水平板状部材１１の主面とフランジ部２４の上面と
は実質的に同一平面を形成する。When the horizontal plate-shaped member 11 and the vertical plate-shaped member 12 are joined to form a T-shaped joint, the flange 25 which is the end of the vertical plate-shaped member 12 is formed in the groove 25 of the horizontal plate-shaped member 11. Engage part 24. As a result, the outer surface of the flange portion 24 is fitted and abutted against the wall surfaces 25b and 25c of the groove portion 25. At this time, the horizontal plate-shaped member 11 is placed on a pedestal and fixed so as not to move, and in this state, the vertical plate-shaped member 12 is engaged with the horizontal plate-shaped member 11. The vertical plate member 12 is fixedly supported by the support. As aforementioned,
Since the height of the flange portion 24 is the same as the depth of the groove portion 25, the main surface of the horizontal plate member 11 and the upper surface of the flange portion 24 form substantially the same plane.

【００４９】上述の状態において、垂直板状部材１２の
中心軸（図中上下方向に延びる軸）は溝部２５の中心軸
と一致している。垂直板状部材１２の一面（図７におい
て、左側面）からフランジ部２４の外面までの距離をＳ
とすると（同様に、垂直板状部材１２の他面（図７にお
いて、右側面）からフランジ部２４の外面までの距離は
Ｓである）、Ｓ≧Ｂ／２（Ｂは工具５１のショルダ部５
１ａの直径）とされる（例えば、Ｓ＝０．５〜３×Ｂに
規定される）。また、溝部２５の深さをｈとすると、ｈ
≦Ｐ（Ｐはプローブ５１ｂの長さ）とされる。In the above-mentioned state, the central axis of the vertical plate member 12 (the axis extending in the vertical direction in the figure) coincides with the central axis of the groove 25. The distance from one surface of the vertical plate member 12 (the left side surface in FIG. 7) to the outer surface of the flange 24 is S
Then (similarly, the distance from the other surface of the vertical plate member 12 (the right side surface in FIG. 7) to the outer surface of the flange portion 24 is S), S ≧ B / 2 (B is the shoulder portion of the tool 51). 5
1a diameter) (for example, S = 0.5 to 3 × B). If the depth of the groove 25 is h, h
≦ P (P is the length of the probe 51b).

【００５０】摩擦攪拌接合を行う際には、工具５１を回
転させつつ、プローブ５１ｂを接合部、つまり、溝部２
５とフランジ部２４との当接面（隙間）に挿入して、接
合部に沿って（図７において紙面表側から裏側に向かう
方向に）工具５１を移動させる。この際、プローブ５１
ｂの回転中心は、水平及び垂直板状部材１１及び１２の
間にある（つまり、溝部２５とフランジ部２４との間に
ある）。そして、摩擦攪拌接合の際には、ショルダ部５
１ａが水平板状部材１１の主面とフランジ部２４の上面
とに押しつけられることになる。なお、摩擦攪拌接合に
当たっては、例えば、工具５１の回転数は８００〜２０
００ｒｐｍ、送り速度（工具５１の移動速度）は１００
〜１０００ｍｍ／分とされる。When the friction stir welding is performed, the probe 51b is joined to the joining portion, that is, the groove portion 2 while rotating the tool 51.
5 is inserted into the contact surface (gap) between the flange portion 24 and the tool 51 is moved along the joint portion (in the direction from the front side to the back side in FIG. 7). At this time, the probe 51
The center of rotation of b is between the horizontal and vertical plate members 11 and 12 (that is, between the groove portion 25 and the flange portion 24). Then, at the time of friction stir welding, the shoulder portion 5
The la is pressed against the main surface of the horizontal plate member 11 and the upper surface of the flange portion 24. In the friction stir welding, for example, the rotation speed of the tool 51 is 800 to 20.
00 rpm, feed speed (moving speed of the tool 51) is 100
~ 1000 mm / min.

【００５１】このようにして、工具５１を用いて摩擦攪
拌接合を行うと、水平及び垂直板状部材１１及び１２は
接合部において摩擦攪拌接合されることになり、接合部
には接合ビード（図示せず）が形成される。この接合ビ
ードは溝部２５とフランジ部２４との当接面の延長線上
にその幅の中心が位置する。接合ビードの深さは接合部
に挿入したプローブ５１ｂの高さ（長さ）によって決定
される。When the friction stir welding is performed using the tool 51 in this way, the horizontal and vertical plate members 11 and 12 are friction stir welded at the joint portion, and the weld bead (see FIG. (Not shown) is formed. The center of the width of the joining bead is located on the extension line of the contact surface between the groove portion 25 and the flange portion 24. The depth of the bonding bead is determined by the height (length) of the probe 51b inserted in the bonding portion.

【００５２】このように、図７に示す例では、水平及び
垂直板状部材１１及び１２を接合してＴ字型継手とする
際、補助接合部材を必要とすることなく、摩擦攪拌接合
することができる。しかも、前述の溝部及びフランジ部
は押し出し成形によって容易に形成することができるか
ら、Ｔ字型継手を形成する際のコストを低減することが
できることになる。As described above, in the example shown in FIG. 7, when the horizontal and vertical plate members 11 and 12 are joined to form a T-shaped joint, friction stir welding is performed without the need for an auxiliary joining member. You can Moreover, since the above-mentioned groove portion and flange portion can be easily formed by extrusion molding, the cost for forming the T-shaped joint can be reduced.

【００５３】さらに、図７に示す例では、摩擦攪拌接合
を行う際、溝部２５にフランジ部２４を係合すればよい
から、位置決め及びセッティングが極めて容易となり、
精度よく摩擦攪拌接合を行うことができるという利点が
ある。そして、前述のように、垂直板状部材１２の一面
からフランジ部の外面までの距離≧ショルダ部５１ａの
直径の半分に規定したから、摩擦攪拌接合の際、ショル
ダ部５１ａによって接合部を均等に押圧することがで
き、この点においても、精度よく摩擦攪拌接合を行うこ
とができることになる。なお、プローブ５１ｂの長さ
は、溝部２５の深さに応じて適宜設定される。Further, in the example shown in FIG. 7, when the friction stir welding is performed, it is sufficient to engage the flange portion 24 with the groove portion 25, so that positioning and setting are extremely easy,
There is an advantage that the friction stir welding can be performed accurately. Then, as described above, the distance from one surface of the vertical plate member 12 to the outer surface of the flange portion is defined to be ≧ half the diameter of the shoulder portion 51a. Therefore, at the time of friction stir welding, the shoulder portion 51a makes the joint portion even. It is possible to press, and also in this respect, the friction stir welding can be performed accurately. The length of the probe 51b is appropriately set according to the depth of the groove 25.

【００５４】図８も同様にＴ型継手を摩擦撹拌接合によ
り製造するもので、前記垂直板状部材の下端が左右水平
方向に延在する水平支持部位(フランジ部)であり、該水
平支持部位が前記ショルダ直径より大なる幅域であるも
のである。FIG. 8 also shows a T-shaped joint manufactured by friction stir welding in the same manner. The lower end of the vertical plate member is a horizontal support portion (flange portion) extending horizontally in the left and right directions. Is a width range larger than the shoulder diameter.

【００５５】図示の例では、水平板状部材１１の主面に
垂直板状部材１２の端部に形成されたフランジ部２４が
その下面で当接される。この際、水平板状部材１１は架
台に載せられ、移動しないように固定され、この状態で
垂直板状部材１２が水平板状部材１１に当接される。そ
して、垂直板状部材１２は支持体によって固定支持され
る。In the illustrated example, the flange portion 24 formed at the end of the vertical plate member 12 is brought into contact with the main surface of the horizontal plate member 11 at its lower surface. At this time, the horizontal plate-shaped member 11 is placed on a pedestal and fixed so as not to move, and in this state, the vertical plate-shaped member 12 is brought into contact with the horizontal plate-shaped member 11. The vertical plate member 12 is fixedly supported by the support.

【００５６】上述の状態において、垂直板状部材１２の
一面（図８において、左側面）からフランジ部２４の外
面までの距離をＳとすると（同様に、垂直板状部材１２
の他面（図８において、右側面）からフランジ部２４の
外面までの距離はＳである）、Ｓ≧Ｂ（Ｂは工具５１の
ショルダ部５１ａの直径）とされる。また、フランジ部
２４の高さをｈとすると、ｈ＜Ｐ（Ｐはプローブ５１ｂ
の長さ）とされる。In the above state, if the distance from one surface of the vertical plate member 12 (the left side surface in FIG. 8) to the outer surface of the flange portion 24 is S (similarly, the vertical plate member 12).
The distance from the other surface (the right side surface in FIG. 8) to the outer surface of the flange portion 24 is S, and S ≧ B (B is the diameter of the shoulder portion 51a of the tool 51). Further, when the height of the flange portion 24 is h, h <P (P is the probe 51b
Length).

【００５７】摩擦攪拌接合を行う際には、工具５１を回
転させつつ、プローブ５１ｂを接合部（接合すべき箇
所）、つまり、フランジ部２４に挿入して、接合部に沿
って（図８において紙面表側から裏側に向かう方向に）
工具５１を移動させる。この際、プローブ５１ｂは少な
くともフランジ部２４を貫通して水平板状部材１１の主
面に達する。そして、摩擦攪拌接合の際には、ショルダ
部５１ａがフランジ部２４の上面とに押しつけられるこ
とになる。なお、摩擦攪拌接合に当たっては、例えば、
工具５１の回転数は８００〜２０００ｒｐｍ、送り速度
（工具５１の移動速度）は１００〜１０００ｍｍ／分と
される。When performing friction stir welding, the probe 51b is inserted into the joint portion (portion to be joined), that is, the flange portion 24 while rotating the tool 51, and along the joint portion (in FIG. 8). (From the front side of the paper to the back side)
The tool 51 is moved. At this time, the probe 51b penetrates at least the flange portion 24 and reaches the main surface of the horizontal plate member 11. When the friction stir welding is performed, the shoulder portion 51a is pressed against the upper surface of the flange portion 24. In the friction stir welding, for example,
The rotation speed of the tool 51 is 800 to 2000 rpm, and the feed speed (moving speed of the tool 51) is 100 to 1000 mm / min.

【００５８】このようにして、工具５１を用いて摩擦攪
拌接合を行うと、水平及び垂直板状部材１１及び１２は
接合部において摩擦攪拌接合されることになり、接合部
には接合ビード（図示せず）が形成される。接合ビード
の深さは接合部に挿入したプローブ５１ｂの高さ（長
さ）によって決定される。When the friction stir welding is performed using the tool 51 in this manner, the horizontal and vertical plate members 11 and 12 are friction stir welded at the joint portion, and the weld bead (Fig. (Not shown) is formed. The depth of the bonding bead is determined by the height (length) of the probe 51b inserted in the bonding portion.

【００５９】このように、図８に示す例では、水平及び
垂直板状部材１１及び１２を接合してＴ字型継手とする
際、補助接合部材を必要とすることなく、摩擦攪拌接合
することができるものである。しかも、前述のフランジ
部は押し出し成形によって容易に形成することができる
から、Ｔ字型継手を形成する際のコストを低減すること
ができることになる。As described above, in the example shown in FIG. 8, when the horizontal and vertical plate members 11 and 12 are joined to form a T-shaped joint, friction stir welding is performed without the need for an auxiliary joining member. Is something that can be done. Moreover, since the above-mentioned flange portion can be easily formed by extrusion molding, the cost for forming the T-shaped joint can be reduced.

【００６０】さらに、図８に示す例では、摩擦攪拌接合
を行う際、水平板状部材１１の主面にフランジ部２４を
当接させればよいから、垂直板状部材１２の接合位置を
任意に設定することができる。そして、前述のように、
垂直板状部材１２の一面からフランジ部の外面までの距
離≧ショルダ部５１ａの直径に規定したから、摩擦攪拌
接合の際、ショルダ部５１ａによって接合部を均等に押
圧することができ、精度よく摩擦攪拌接合を行うことが
できることになる。なお、プローブ５１ｂの長さは、フ
ランジ部２４の高さ（厚さ）に応じて適宜設定される。Further, in the example shown in FIG. 8, when the friction stir welding is performed, the flange portion 24 may be brought into contact with the main surface of the horizontal plate member 11, so that the joining position of the vertical plate member 12 is arbitrary. Can be set to. And, as mentioned above,
Since the distance from one surface of the vertical plate member 12 to the outer surface of the flange portion is defined as ≧ the diameter of the shoulder portion 51a, the joint portion can be uniformly pressed by the shoulder portion 51a during friction stir welding, and friction can be accurately obtained. Stir welding can be performed. The length of the probe 51b is appropriately set according to the height (thickness) of the flange portion 24.

【００６１】なお、上述の説明では、Ｔ型継手について
説明したが、Ｌ字形、Ｉ型、Π型、及び∠型等の継手に
ついても同様にして摩擦攪拌接合を行うことができる。Although the T-type joint has been described above, friction stir welding can be similarly applied to L-type, I-type, Π-type and ∠-type joints.

【００６２】例えば、図９に示すように、断面略コ字形
状の長尺部材６１を水平板状部材１１に接合する際に
は、水平板状部材１１の主面には長手方向に延びる断面
三角形状（山型形状）の凸部２２及び２３が長尺部材６
１の開口端幅に応じた間隔で形成される。長尺部材６１
は一対の脚部６１ａ及び６１ｂを有しており、これら脚
部６１ａ及び６１ｂが立設部材（垂直板状部材）とな
る。脚部６１ａ及び６１ｂの端部にはそれぞれ凸部２２
及び２３の斜面（内側の斜面）及び水平板状部材１１の
主面に当接する凸部体６２ａ及び６２ｂが形成されてい
る。そして、凸部体６２ａ及び６２ｂはそれぞれ外側に
面する一対の斜面（外斜面）６３ａ及び６３ｂを有して
いる。For example, as shown in FIG. 9, when a long member 61 having a substantially U-shaped cross section is joined to the horizontal plate member 11, a cross section extending in the longitudinal direction is formed on the main surface of the horizontal plate member 11. The triangular (mountain-shaped) convex portions 22 and 23 are the long members 6.
1 is formed at intervals according to the opening end width. Long member 61
Has a pair of legs 61a and 61b, and these legs 61a and 61b serve as standing members (vertical plate members). The protrusions 22 are respectively provided at the ends of the legs 61a and 61b.
And convex portions 62a and 62b that are in contact with the inclined surfaces (inward inclined surfaces) and the main surface of the horizontal plate-shaped member 11 are formed. The protrusions 62a and 62b have a pair of slopes (outer slopes) 63a and 63b facing the outside, respectively.

【００６３】図９に示すように、脚部６１ａ及び６１ｂ
の端部をそれぞれ凸部２２及び２３の斜面及び水平板状
部材１１の主面に当接させると、長尺部材６１は水平板
状部材１１に水平支持される。そして、凸部２２の外側
斜面と外斜面６３ａとが同一傾斜面（以下接合斜面と呼
ぶ）を規定し、凸部２３の外側斜面と外斜面６３ｂとが
同一傾斜面（以下接合斜面と呼ぶ）を規定する。このよ
うにして、凸部２２及び２３と凸部体６２ａ及び６２ｂ
とによって接合部が規定され、図１〜図５で説明したよ
うに、接合斜面から工具５１が挿入されて、摩擦攪拌接
合が行なわれて、水平板状部材１１と長尺部材６１とが
接合されることになる。As shown in FIG. 9, leg portions 61a and 61b.
The elongated members 61 are horizontally supported by the horizontal plate-shaped member 11 when the end portions of the elongated members 61 are brought into contact with the slopes of the convex portions 22 and 23 and the main surface of the horizontal plate-shaped member 11, respectively. The outer slope of the convex portion 22 and the outer slope 63a define the same inclined surface (hereinafter referred to as a joint slope), and the outer slope of the convex portion 23 and the outer slope 63b define the same inclined surface (hereinafter referred to as a joint slope). Stipulate. In this way, the convex portions 22 and 23 and the convex portion bodies 62a and 62b are
The joining portion is defined by and, as described in FIGS. 1 to 5, the tool 51 is inserted from the joining slope and friction stir welding is performed to join the horizontal plate member 11 and the long member 61. Will be done.

【００６４】なお、図９においても、円形ショルダ面の
径（直径）をＢとし、接合斜面の幅をＳとすると、Ｓ≧
Ｂに規定される。一方、当接面の深さをｈ、プローブの
長さをＰとすると、ｈ≦Ｐに規定される（望ましくは、
ｈ＝Ｐに規定される）。Also in FIG. 9, assuming that the diameter (diameter) of the circular shoulder surface is B and the width of the joining slope is S, S ≧
Stipulated in B. On the other hand, if the depth of the contact surface is h and the length of the probe is P, then h ≦ P (preferably,
h = P).

【００６５】さらに、図１０に示すように、長尺部材６
１の脚部６１ａ及び６１ｂに長手方向と直交する方向に
突出するフランジ部（水平支持板部）６４ａ及び６４ｂ
を設けるようにしてもよい。これらフランジ部６４ａ及
び６４ｂは長手方向に延びるとともに幅方向に水平板状
部材１１の主面に対して平行となっている。この際、水
平板状部材１１においては、凸部２２及び２３はその上
面２２ｃ及び２３ｃが水平板状部材１１の主面に対して
平行となっている。そして、図１０に示す例では、凸部
２２及び２３の各側面は水平板状部材１１の主面に対し
て垂直となっている。なお、フランジ部６４ａ及び６４
ｂの高さは凸部２２及び２３の高さ）と同一である。Further, as shown in FIG. 10, the long member 6
Flange portions (horizontal support plate portions) 64a and 64b projecting in a direction orthogonal to the longitudinal direction on the leg portions 61a and 61b of the first embodiment.
May be provided. These flange portions 64a and 64b extend in the longitudinal direction and are parallel to the main surface of the horizontal plate member 11 in the width direction. At this time, in the horizontal plate-shaped member 11, the upper surfaces 22c and 23c of the protrusions 22 and 23 are parallel to the main surface of the horizontal plate-shaped member 11. Then, in the example shown in FIG. 10, each side surface of the convex portions 22 and 23 is perpendicular to the main surface of the horizontal plate-shaped member 11. The flange portions 64a and 64
The height of b is the same as the height of the convex portions 22 and 23.

【００６６】図１０に示すように、フランジ部６４ａ及
び６４ｂをそれぞれ凸部２２及び２３の側面及び水平板
状部材１１の主面に当接させると、長尺部材６１は水平
板状部材１１に水平支持される。フランジ部６４ａ及び
６４ｂの高さは凸部２２及び２３の高さと同一であるか
ら、凸部２２の上面２２ｃ及び凸部の上面２３ｃとフラ
ンジ部６４ａ及び６４ｂの上面とは実質的に同一平面を
形成し、この平面は水平板状部材１１の主面と平行にな
る。As shown in FIG. 10, when the flange portions 64a and 64b are brought into contact with the side surfaces of the convex portions 22 and 23 and the main surface of the horizontal plate member 11, respectively, the elongated member 61 is attached to the horizontal plate member 11. Horizontally supported. Since the heights of the flange portions 64a and 64b are the same as the heights of the convex portions 22 and 23, the upper surfaces 22c and 23c of the convex portions 22 and the upper surfaces of the flange portions 64a and 64b are substantially flush with each other. It is formed, and this plane is parallel to the main surface of the horizontal plate member 11.

【００６７】摩擦攪拌接合を行う際には、例えば、摩擦
接合工具としてボビンツール７１が用いられる。このボ
ビンツール７１は、細いプローブ７１ａとこのプローブ
７１ａを挟む一対の断面円形のショルダ部７１ｂ及び７
１ｃを有しており、ショルダ部７１ｂの下面及びショル
ダ部７１ｃの上面にはそれぞれ円形ショルダ面が規定さ
れている。そして、ショルダ面によって被加工物である
突合せ部（接合部）に摩擦熱が付与される。ショルダ部
７１ｂ及び７１ｃの直径はプローブ７１ａの直径よりも
太く、ショルダ部７１ｂ及び７１ｃの間隔は接合部の厚
さに応じて設定される。When performing friction stir welding, for example, a bobbin tool 71 is used as a friction welding tool. The bobbin tool 71 includes a thin probe 71a and a pair of shoulder portions 71b and 7b having a circular cross section and sandwiching the probe 71a.
1c, a circular shoulder surface is defined on each of the lower surface of the shoulder portion 71b and the upper surface of the shoulder portion 71c. Then, friction heat is applied to the butt portion (joint portion) which is the workpiece by the shoulder surface. The diameter of the shoulder portions 71b and 71c is larger than the diameter of the probe 71a, and the distance between the shoulder portions 71b and 71c is set according to the thickness of the joint portion.

【００６８】いま、脚部６１ｂの一面から凸部２３の外
側面までの距離をＳとすると（同様に、脚部６１ａの一
面から凸部２２の外側面までの距離はＳである）、Ｓ≧
Ｂ（Ｂはショルダ部７１ｂ及び７１ｃの直径）とされる
とともに、上述の凸部２２及び２３の幅ＤはＤ≧Ｂ／２
とされる。そして、ボビンツール７１によって、摩擦攪
拌接合が行なわれて、水平板状部材１１と長尺部材６１
とが接合されることになる。なお、図６で説明したよう
に、摩擦接合工具として工具５１を用いて摩擦攪拌接合
を行うようにしてもよく、同様に、図６に示す例におい
ても、摩擦接合工具としてボビンツール７１を用いるよ
うにしてもよい。Supposing that the distance from one surface of the leg portion 61b to the outer surface of the convex portion 23 is S (similarly, the distance from the one surface of the leg portion 61a to the outer surface of the convex portion 22 is S), S ≧
B (B is the diameter of the shoulder portions 71b and 71c), and the width D of the above-mentioned convex portions 22 and 23 is D ≧ B / 2.
It is said that Then, friction stir welding is performed by the bobbin tool 71, and the horizontal plate member 11 and the long member 61 are joined.
And will be joined. As described with reference to FIG. 6, the friction stir welding may be performed using the tool 51 as the friction welding tool. Similarly, in the example shown in FIG. 6, the bobbin tool 71 is used as the friction welding tool. You may do it.

【００６９】図１１に示す例では、水平板状部材１１に
は長手方向に延びる矩形状溝部２５が形成されている。
この溝部２５は主面に平行な底面と主面に対して垂直な
壁面とを有しており、フランジ部６４ａ及び６４ｂの高
さと溝部２５の深さとは等しくなっている。図１１に示
すように、フランジ部６４ａ及び６４ｂをそれぞれ溝部
２５の壁面及び水平板状部材１１の主面に当接させる
と、長尺部材６１は水平板状部材１１に水平支持され
る。フランジ部６４ａ及び６４ｂの高さは溝部２５の深
さと同一であるから、水平板状部材１１の主面とフラン
ジ部６４ａ及び６４ｂの上面とは実質的に同一平面を形
成する。摩擦攪拌接合に当たっては、図１０で説明した
ボビンツール７１が用いられる。脚部６１ａの一面から
フランジ部６４ａの外面までの距離をＳとすると（同様
に、脚部６１ｂの一面からフランジ部６４ｂの外面まで
の距離はＳである）、Ｓ≧Ｂ／２とされる。なお、図７
で説明したように、摩擦接合工具として工具５１を用い
て摩擦攪拌接合を行うようにしてもよく、同様に、図７
に示す例においても、摩擦接合工具としてボビンツール
７１を用いるようにしてもよい。In the example shown in FIG. 11, a rectangular groove 25 extending in the longitudinal direction is formed on the horizontal plate member 11.
The groove portion 25 has a bottom surface parallel to the main surface and a wall surface perpendicular to the main surface, and the heights of the flange portions 64a and 64b are equal to the depth of the groove portion 25. As shown in FIG. 11, when the flange portions 64 a and 64 b are brought into contact with the wall surface of the groove portion 25 and the main surface of the horizontal plate-shaped member 11, the elongated member 61 is horizontally supported by the horizontal plate-shaped member 11. Since the height of the flange portions 64a and 64b is the same as the depth of the groove portion 25, the main surface of the horizontal plate member 11 and the upper surfaces of the flange portions 64a and 64b form substantially the same plane. For friction stir welding, the bobbin tool 71 described with reference to FIG. 10 is used. If the distance from one surface of the leg portion 61a to the outer surface of the flange portion 64a is S (similarly, the distance from the one surface of the leg portion 61b to the outer surface of the flange portion 64b is S), then S ≧ B / 2. . Note that FIG.
As described above, the friction stir welding may be performed using the tool 51 as the friction welding tool.
Also in the example shown in (1), the bobbin tool 71 may be used as the friction welding tool.

【００７０】図１２に示す例では、水平板状部材１１の
主面に脚部６１ａ及び６１ｂに形成されたフランジ部６
４ａ及び６４ｂがその下面で当接される。この際、水平
板状部材１１は架台に載せられ、移動しないように固定
され、この状態で長尺部材６１が水平板状部材１１に当
接される。摩擦攪拌接合に当たっては、図１０で説明し
たボビンツール７１が用いられる。脚部６１ａの一面か
らフランジ部６４ａの外面までの距離をＳとすると（同
様に、脚部６１ｂの一面からフランジ部６４ｂの外面ま
での距離はＳである）、Ｓ≧Ｂとされる。なお、図８で
説明したように、摩擦接合工具として工具５１を用いて
摩擦攪拌接合を行うようにしてもよく、同様に、図８に
示す例においても、摩擦接合工具としてボビンツール７
１を用いるようにしてもよい。In the example shown in FIG. 12, the flange portion 6 formed on the leg portions 61a and 61b on the main surface of the horizontal plate member 11 is used.
4a and 64b abut on their underside. At this time, the horizontal plate-shaped member 11 is placed on a pedestal and fixed so as not to move, and in this state, the long member 61 is brought into contact with the horizontal plate-shaped member 11. For friction stir welding, the bobbin tool 71 described with reference to FIG. 10 is used. If the distance from one surface of the leg portion 61a to the outer surface of the flange portion 64a is S (similarly, the distance from the one surface of the leg portion 61b to the outer surface of the flange portion 64b is S), then S ≧ B. As described with reference to FIG. 8, the friction stir welding may be performed using the tool 51 as the friction welding tool. Similarly, in the example shown in FIG. 8, the bobbin tool 7 is used as the friction welding tool.
You may make it use 1.

【００７１】[0071]

【発明の効果】以上のように、本発明によれば、被加工
物に摩擦熱を付与する円形ショルダ面の中心軸線上にプ
ローブが垂設された摩擦接合工具を用い、立設部材の下
端を水平部材の主面に当接した後、当接部にショルダ面
を押圧摩擦回転させながら、当接部を摩擦撹拌接合する
際、立設部材の下端とその下端当接位置に対応する水平
部材の主面部位に互いに係合する凹凸部を形成するとと
もに、この凹凸面の係合により形成されるショルダ当接
面が、ショルダ直径より大なる幅域であるようにしたか
ら、補助接合部材を必要とすることなく、隅部を摩擦攪
拌接合することができ、コストを低減することができる
という効果がある。さらに、摩擦攪拌接合を行う際、凹
凸部によって水平部材と立設部材とを係合すればよいか
ら、位置決め及びセッティングが極めて容易となり、精
度よく摩擦攪拌接合を行うことができる。As described above, according to the present invention, the lower end of the standing member is used by using the friction welding tool in which the probe is hung vertically on the central axis of the circular shoulder surface for applying frictional heat to the workpiece. After contacting the main surface of the horizontal member with friction stir welding of the contact portion while pressing and rotating the shoulder surface against the contact portion, the lower end of the standing member and the horizontal position corresponding to the lower end contact position thereof are joined. Since the concave and convex portions that engage with each other are formed in the main surface portion of the member, and the shoulder contact surface formed by the engagement of the concave and convex surfaces has a width range larger than the shoulder diameter, the auxiliary joining member It is possible to perform friction stir welding at the corners without needing to reduce the cost. Further, when the friction stir welding is performed, the horizontal member and the upright member may be engaged with each other by the concavo-convex portion, so positioning and setting are extremely easy, and the friction stir welding can be performed accurately.

【００７２】本発明によれば、ショルダ当接面が、水平
部材と立設部材の両者にまたがって傾斜平面若しくは水
平平面上に形成されているから、隅部を容易に摩擦攪拌
接合できるという効果がある。According to the present invention, since the shoulder contact surface is formed on the inclined plane or the horizontal plane across both the horizontal member and the standing member, the corners can be easily friction stir welded. There is.

【００７３】本発明によれば、ショルダ当接面が立設部
材の左右両側に対称に形成されているから、隅部を同時
に摩擦攪拌接合できるという効果がある。According to the present invention, since the shoulder contact surfaces are symmetrically formed on the left and right sides of the standing member, there is an effect that the corner portions can be friction stir welded at the same time.

【００７４】本発明によれば、凹凸部の少なくとも一面
に垂直立設部材を垂直に支持するための水平支持面が規
定されているから、水平部材に対して立設部材を垂直に
保持できるという効果がある。According to the present invention, since the horizontal support surface for vertically supporting the vertical standing member is defined on at least one surface of the uneven portion, the standing member can be held vertically with respect to the horizontal member. effective.

【００７５】本発明によれば、立設部材の凸部を左右対
称断面略山型形状として、これと係合する水平部材の凹
部すそ野部分が***した谷形状として、凸部の幅方向傾
斜面と水平部材のすそ野部分によって傾斜面として規定
された平面が、ショルダ直径より大なる幅域であるの
で、摩擦攪拌接合の際、ショルダ部によって接合部を均
等に押圧することができ、精度よく摩擦攪拌接合を行う
ことができるという効果がある。According to the present invention, the convex portion of the standing member has a substantially mountain-shaped symmetrical cross section, and the concave portion of the horizontal member engaging with the convex portion has a raised valley portion so that the inclined surface in the width direction of the convex portion is formed. Since the plane defined as the inclined surface by the skirt of the horizontal member is a width range larger than the shoulder diameter, the joint can be pressed uniformly by the shoulder during friction stir welding, resulting in accurate friction. There is an effect that stir welding can be performed.

【００７６】本発明によれば、立設部材の凸部をその上
面が前記主面に平行な面として、凸部の上面と立設部材
の端部とによって接合部を主面に対して平行とする水平
面としたので、摩擦攪拌接合の際、ショルダ部によって
接合部を均等に押圧することができ、精度よく摩擦攪拌
接合を行うことができるという効果がある。According to the present invention, the projection of the standing member is a surface whose upper surface is parallel to the main surface, and the joint is parallel to the main surface by the upper surface of the projection and the end of the standing member. Since the horizontal plane is set, the joint portion can be uniformly pressed by the shoulder portion during the friction stir welding, and the friction stir welding can be performed accurately.

【００７７】本発明によれば、立設部材の下端を左右水
平方向に延在する水平支持部位として、水平支持部位に
嵌合する水平部材を矩形状に凹設し、凹設部位と水平支
持部位を凹設した際に水平部材の主面が面一になるよう
に構成したので、摩擦攪拌接合の際、ショルダ部によっ
て接合部を均等に押圧することができ、精度よく摩擦攪
拌接合を行うことができるという効果がある。According to the present invention, the lower end of the standing member is defined as a horizontal support portion extending in the left-right horizontal direction, and the horizontal member fitted to the horizontal support portion is recessed in a rectangular shape to support the recessed portion and the horizontal support. Since the main surface of the horizontal member is made flush when the parts are recessed, the joint portion can be pressed uniformly by the shoulder portion during friction stir welding, and friction stir welding is performed accurately. The effect is that you can.

【００７８】本発明によれば、立設部材の下端が左右水
平方向に延在する水平支持部位であり、水平支持部位に
嵌合する水平部材を矩形状に凹設した凹設部材を平面状
***部に形成するとともに、***部と水平支持部位の上
面が面一として、その左右夫々の面一部がショルダ直径
より大なる幅域としたので、摩擦攪拌接合の際、ショル
ダ部によって接合部を均等に押圧することができ、精度
よく摩擦攪拌接合を行うことができるという効果があ
る。According to the present invention, the lower end of the standing member is a horizontal support portion extending in the horizontal direction in the left and right direction, and the horizontal member fitted to the horizontal support portion is provided with a rectangular recessed member having a planar shape. Since the upper surface of the raised portion and the horizontal support portion are flush with each other and part of each of the left and right surfaces has a width larger than the shoulder diameter, the joint portion is formed by the shoulder portion during friction stir welding. Can be pressed evenly, and friction stir welding can be performed accurately.

【００７９】本発明によれば、立設部材の下端を左右水
平方向に延在する水平支持部位として、水平支持部位を
ショルダ直径より大なる幅域としたので、水平部材の主
面に立設部材を当接させるだけでよく、立設部材の接合
位置を任意に設定することができ、摩擦攪拌接合の際、
ショルダ部によって接合部を均等に押圧することがで
き、精度よく摩擦攪拌接合を行うことができるという効
果がある。According to the present invention, since the lower end of the standing member is a horizontal supporting portion extending horizontally in the left-right direction and the horizontal supporting portion has a width range larger than the shoulder diameter, the standing member is erected on the main surface of the horizontal member. It is only necessary to bring the members into contact with each other, and the joining position of the standing member can be arbitrarily set.
There is an effect that the joint portion can be pressed uniformly by the shoulder portion and friction stir welding can be performed accurately.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本発明による垂直若しくは傾斜立設継手構造
体の水平の例を水平部材及び立設部材を係合した状態で
示す斜視図である。FIG. 1 is a perspective view showing an example of a vertical or inclined standing joint structure according to the present invention in a horizontal state in which a horizontal member and a standing member are engaged with each other.

【図２】 図１の断面図である。FIG. 2 is a sectional view of FIG.

【図３】 図１に示す係合状態において工具を挿入する
状態を示す図である。FIG. 3 is a diagram showing a state in which a tool is inserted in the engaged state shown in FIG.

【図４】 図１において工具による摩擦攪拌接合の状態
の一例を示す断面図である。FIG. 4 is a cross-sectional view showing an example of a state of friction stir welding with a tool in FIG.

【図５】 図１において工具による摩擦攪拌接合の状態
の他の例を示す断面図である。5 is a cross-sectional view showing another example of the state of friction stir welding with a tool in FIG. 1. FIG.

【図６】 本発明による垂直若しくは傾斜立設継手構造
体の第２の例を水平部材及び立設部材を係合した状態で
工具とともに示す断面図である。FIG. 6 is a sectional view showing a second example of a vertical or inclined standing joint structure according to the present invention together with a tool in a state in which a horizontal member and a standing member are engaged.

【図７】 本発明による垂直若しくは傾斜立設継手構造
体の第３の例を水平部材及び立設部材を係合した状態で
工具とともに示す断面図である。FIG. 7 is a sectional view showing a third example of a vertical or inclined standing joint structure according to the present invention together with a tool in a state in which a horizontal member and a standing member are engaged.

【図８】 本発明による垂直若しくは傾斜立設継手構造
体の第４の例を水平部材及び立設部材を係合した状態で
工具とともに示す断面図である。FIG. 8 is a sectional view showing a fourth example of a vertical or inclined standing joint structure according to the present invention together with a tool in a state in which a horizontal member and a standing member are engaged.

【図９】 本発明による垂直若しくは傾斜立設継手構造
体の第５の例を水平部材及び立設部材（断面略コ字状長
尺部材）を当接した状態で工具とともに示す断面図であ
る。9 is a cross-sectional view showing a fifth example of a vertical or inclined standing joint structure according to the present invention together with a tool in a state where a horizontal member and a standing member (long member having a substantially U-shaped section) are in contact with each other. FIG. .

【図１０】 本発明による垂直若しくは傾斜立設継手構
造体の第６の例を水平部材及び立設部材（断面略コ字状
長尺部材）を当接した状態でボビンツールとともに示す
断面図である。FIG. 10 is a cross-sectional view showing a sixth example of a vertical or inclined standing joint structure according to the present invention together with a bobbin tool in a state where a horizontal member and a standing member (long member having a substantially U-shaped cross section) are in contact with each other. is there.

【図１１】 本発明による垂直若しくは傾斜立設継手構
造体の第７の例を水平部材及び立設部材（断面略コ字状
長尺部材）を当接した状態でボビンツールとともに示す
断面図である。FIG. 11 is a cross-sectional view showing a seventh example of a vertical or inclined standing joint structure according to the present invention together with a horizontal member and a standing member (long member having a substantially U-shaped cross section) together with a bobbin tool. is there.

【図１２】 本発明による垂直若しくは傾斜立設継手構
造体の第８の例を水平部材及び立設部材（断面略コ字状
長尺部材）を当接した状態でボビンツールとともに示す
断面図である。FIG. 12 is a cross-sectional view showing an eighth example of a vertical or inclined standing joint structure according to the present invention together with a bobbin tool in a state where a horizontal member and a standing member (long member having a substantially U-shaped section) are in contact with each other. is there.

【符号の説明】[Explanation of symbols]

１１ 水平板状部材（水平部材） １２ 垂直板状部材（立設部材） ２１，２５ 溝部 ２２，２３ 凸部 ２４ フランジ部 ３１ 凸部体 ５１ 工具 ５２ 接合ビード ６１ 断面略コ字状長尺部材（立設部材） ７１ ボビンツール 11 Horizontal plate member (horizontal member) 12 Vertical plate member (standing member) 21,25 groove 22, 23 convex 24 Flange 31 Convex body 51 tools 52 bonded beads 61 Long member with a substantially U-shaped cross section (standing member) 71 bobbin tool

───────────────────────────────────────────────────── フロントページの続き (72)発明者 金川 泰宏 広島県三原市糸崎町5007番地 三菱重工業 株式会社三原機械・交通システム工場内 (72)発明者 広本 悦己 広島市西区観音新町四丁目６番22号 三菱 重工業株式会社広島研究所内 (72)発明者 真鍋 幸男 広島市西区観音新町四丁目６番22号 三菱 重工業株式会社広島研究所内 Ｆターム(参考） 4E067 AA05 BG00 DA13 DA17    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuhiro Kanagawa             Hiroshima Prefecture Mihara City Itozakicho 5007 Mitsubishi Heavy Industries             Mihara Machinery & Transportation Systems Factory (72) Inventor Hiromi Etsumi             4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima Mitsubishi             Heavy Industry Co., Ltd. Hiroshima Laboratory (72) Inventor Yukio Manabe             4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima Mitsubishi             Heavy Industry Co., Ltd. Hiroshima Laboratory F-term (reference) 4E067 AA05 BG00 DA13 DA17

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】 被加工物に摩擦熱を付与する円形ショル
ダ面の中心軸線上にプローブが垂設された摩擦接合工具
を用い、立設部材の下端を水平部材の主面に当接した
後、当接部にショルダ面を押圧摩擦回転させながら、前
記当接部を摩擦撹拌接合した垂直若しくは傾斜立設継手
構造体において、 前記立設部材の下端とその下端当接位置に対応する水平
部材の主面部位に互いに係合する凹凸部を形成するとと
もに、該凹凸面の係合により形成されるショルダ当接面
が、前記ショルダ直径より大なる幅域であることを特徴
とする垂直若しくは傾斜立設継手構造体。1. A friction welding tool, in which a probe is hung vertically on a central axis of a circular shoulder surface for applying frictional heat to a work piece, after contacting a lower end of a standing member with a main surface of a horizontal member. A vertical or inclined standing joint structure in which the contact portion is friction stir welded while pressing and rotating the shoulder surface against the contact portion, and a horizontal member corresponding to the lower end of the standing member and the lower end contact position thereof. Vertical or inclined, characterized in that an uneven portion that engages with each other is formed in the main surface portion of the shoulder contact surface, and the shoulder contact surface formed by the engagement of the uneven surface has a width range larger than the shoulder diameter. Standing joint structure. 【請求項２】 前記ショルダ当接面が、水平部材と立設
部材の両者にまたがって傾斜平面若しくは水平平面上に
形成されていることを特徴とする請求項１記載の垂直若
しくは傾斜立設継手構造体。2. The vertical or inclined upright joint according to claim 1, wherein the shoulder contact surface is formed on an inclined plane or a horizontal plane across both the horizontal member and the upright member. Structure. 【請求項３】 前記ショルダ当接面が立設部材の左右両
側に対称に形成されていることを特徴とする請求項１記
載の垂直若しくは傾斜立設継手構造体。3. The vertical or inclined upright joint structure according to claim 1, wherein the shoulder contact surfaces are symmetrically formed on both left and right sides of the upright member. 【請求項４】 請求項１記載の垂直設継手構造体におい
て、前記凹凸部の少なくとも一面に垂直立設部材を垂直
に支持するための水平支持面を有することを特徴とする
垂直設継手構造体。4. The vertical joint structure according to claim 1, wherein at least one surface of the uneven portion has a horizontal support surface for vertically supporting a vertical standing member. . 【請求項５】 前記立設部材の凸部は左右対称断面略山
型形状であり、これと係合する水平部材の凹部は両側面
を***させた谷形状であり両外側にすそ野部分を有し、
前記立設部材の凸部の幅方向傾斜面と水平部材のすそ野
部分によって傾斜面として規定された平面が、前記ショ
ルダ直径より大なる幅域であることを特徴とする請求項
１に記載の垂直若しくは傾斜立設継手構造体。5. The convex portion of the upright member has a bilaterally symmetrical cross-section substantially mountain shape, and the concave portion of the horizontal member engaging with the upright member has a valley shape in which both side surfaces are raised and has skirt portions on both outer sides. Then
2. The vertical according to claim 1, wherein a plane defined as an inclined surface by the inclined surface in the width direction of the convex portion of the standing member and the skirt portion of the horizontal member is a width range larger than the shoulder diameter. Or an inclined standing joint structure. 【請求項６】 前記立設部材の凸部はその上面が前記主
面部位に平行な面であり、前記凸部の上面と前記立設部
材の端部とによって前記接合部を前記主面部位に対して
平行とする水平面であることを特徴とする請求項１に記
載の垂直若しくは傾斜立設継手構造体。6. The convex portion of the upright member has a top surface parallel to the main surface portion, and the upper surface of the convex portion and an end portion of the upright member form the joint portion in the main surface portion. The vertical or inclined standing joint structure according to claim 1, which is a horizontal plane that is parallel to. 【請求項７】 前記立設部材の下端が左右水平方向に延
在する水平支持部位であり、該水平支持部位に嵌合する
水平部材を矩形状に凹設し、該凹設部位と前記水平支持
部位を嵌合した際に水平部材の主面が面一になるように
構成したことを特徴とする請求項１に記載の垂直若しく
は傾斜立設継手構造体。7. The lower end of the standing member is a horizontal support portion extending in the horizontal direction in the left and right direction, and a horizontal member fitted to the horizontal support portion is recessed in a rectangular shape, and the recessed portion and the horizontal portion. The vertical or inclined upright joint structure according to claim 1, wherein the main surfaces of the horizontal members are flush with each other when the support parts are fitted together. 【請求項８】 前記立設部材の下端が左右水平方向に延
在する水平支持部位であり、該水平支持部位に嵌合する
水平部材に矩形状に凹設した凹設部を平面状***部に形
成するとともに、該***部と水平支持部位の上面が面一
であり、その左右夫々の面一部が前記ショルダ直径より
大なる幅域であることを特徴とする請求項１に記載の垂
直若しくは傾斜立設継手構造体。8. A flat supporting portion is provided at a lower end of the upright member, which is a horizontal support portion extending in the horizontal direction in the horizontal direction, and in which the horizontal member fitted in the horizontal support portion has a rectangular recessed portion. 2. The vertical structure according to claim 1, wherein the upper surface of the raised portion and the horizontal supporting portion are flush with each other and part of each of the left and right surfaces is a width region larger than the shoulder diameter. Or an inclined standing joint structure. 【請求項９】 被加工物に摩擦熱を付与する円形ショル
ダ面の中心軸線上にプローブが垂設された摩擦接合工具
を用い、立設部材の下端を水平部材の主面に当接した
後、前記当接部にショルダ面を押圧摩擦回転させなが
ら、前記当接部を摩擦撹拌接合した垂直若しくは傾斜立
設継手構造体において、 前記立設部材の下端が左右水平方向に延在する水平支持
部位であり、該水平支持部位が前記ショルダ直径より大
なる幅域であることを特徴とする垂直若しくは傾斜立設
継手構造体。9. A friction welding tool in which a probe is hung vertically on the center axis of a circular shoulder surface for applying frictional heat to a workpiece, and after the lower end of the standing member is brought into contact with the main surface of the horizontal member. In a vertical or inclined standing joint structure in which the contact portion is friction stir welded while pressing and rotating the shoulder surface against the contact portion, a horizontal support in which the lower end of the standing member extends in the horizontal direction in the horizontal direction. A vertical or inclined standing joint structure, wherein the horizontal support portion is a width region larger than the shoulder diameter.
JP2002139109A 2002-05-14 2002-05-14 Vertical or inclined standing joint structure Expired - Lifetime JP4195580B2 (en)

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JP2011524255A (en) * 2008-06-16 2011-09-01 エンブラエル ソシエダージ アノーニマ Friction stir welding (FSW) method and system and friction stir welding parts produced thereby
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US8814027B2 (en) 2009-10-09 2014-08-26 Nippon Light Metal Company, Ltd. Rotation tool for joining inner corner and joining inner corner method using the same
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