JPS63317268A - Friction welding equipment - Google Patents
Friction welding equipmentInfo
- Publication number
- JPS63317268A JPS63317268A JP15519587A JP15519587A JPS63317268A JP S63317268 A JPS63317268 A JP S63317268A JP 15519587 A JP15519587 A JP 15519587A JP 15519587 A JP15519587 A JP 15519587A JP S63317268 A JPS63317268 A JP S63317268A
- Authority
- JP
- Japan
- Prior art keywords
- welded
- members
- friction
- friction welding
- slag
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims description 38
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 abstract description 20
- 239000007789 gas Substances 0.000 abstract description 18
- 239000011261 inert gas Substances 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は１対の被溶接部材の接合面に回転摩擦により加
熱して溶接する摩擦溶接装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction welding device that heats and welds a pair of welded members to a joint surface using rotational friction.
一般に、摩擦溶接は大柴文雉著理論応用溶接工学（第６
５頁乃至第６６頁）に記載されているように。In general, friction welding is used in Theory and Application Welding Engineering (Vol. 6) written by Fumiki Oshiba.
As described on pages 5 to 66).
１対の被溶接部材の一方を回転可能に把持し他方を固定
して、両部材の端面を接触させ軸方向の圧力をかけなが
ら一方の部材を回転し、接触面に作用する摩擦によって
熱を発生させる。同時に摩擦力によって接触部に塑性変
形を発生させ、この変形部分を摩擦熱によって軟らかい
塑性質とする。One of a pair of workpieces to be welded is held rotatably and the other is fixed, the end faces of both members are brought into contact, and one member is rotated while applying pressure in the axial direction, and heat is generated by the friction acting on the contact surface. generate. At the same time, the frictional force causes plastic deformation in the contact area, and the frictional heat makes this deformed part soft and plastic.
このとき回転する側の部材の回転を停止し、ついで短時
間軸方向に圧力を作用させることにより完全接合させて
溶接を行なうものである。At this time, the rotation of the rotating member is stopped, and then pressure is applied in the axial direction for a short period of time to completely join and weld.
この種の摩擦溶接に関する従来の提案としては、特公昭
５８−２８０３８号公報によって開示されたように。A conventional proposal regarding this type of friction welding is disclosed in Japanese Patent Publication No. 58-28038.
互に摩擦回転している１対の被溶接部材の突合せ面を外
側から冷却し、かっこの突合せ面の内側と外側とがほぼ
同時に溶接温度に達したときに加圧接合させて、溶接後
の突合せ面外層に突出するパリを小さくする提案が知ら
れている。The abutting surfaces of a pair of parts to be welded that are rotating by friction are cooled from the outside, and when the inside and outside of the abutting surfaces of the brackets reach the welding temperature almost simultaneously, they are welded under pressure. Proposals are known to reduce the protrusion on the outer layer of the abutment surface.
また、特公昭６０−１１１８号公報によって開示さ九た
ように、回転円板に対して両側から被溶接部材を押圧さ
せて加熱し、溶接可能温度に達した後に回転円板と被溶
接部材とを相対離反させ、その後直ちに被溶接部材を接
合面を介して対向圧接して冶金的に結合させるようにし
て、被溶接部材のサイズや形状に無関係に溶接できるよ
うにした提案も公知である。In addition, as disclosed in Japanese Patent Publication No. 1118/1983, a member to be welded is heated by pressing it against a rotating disk from both sides, and after reaching a weldable temperature, the rotating disk and the member to be welded are separated. There is also a known proposal in which the members to be welded are separated from each other, and then the members to be welded are immediately welded together metallurgically by opposing pressure-welding through the joint surfaces, thereby making it possible to weld regardless of the size or shape of the members to be welded.
しかしながら、上記の従来の摩擦溶接は大気中で行なわ
れる溶接方法であるため、高温状態で被溶接部材から押
出されて形成される溶接パリの表面部は大気中の酸素な
どと接触し、その表面層には脆く剥離しゃすいスラグが
形成される。However, since the above-mentioned conventional friction welding is a welding method that is performed in the atmosphere, the surface of the weld pad that is extruded from the workpiece under high temperature conditions comes into contact with oxygen in the atmosphere, and the surface A brittle and flaky slag is formed in the layer.
このため、例えば第３図に示すように固定側被溶接部材
１に圧接される回転側被溶接部材２に回転力を伝達する
転勤部３に前記スラグ４が剥離脱落してかみ込むなどし
て、長期間にわたる動作中には種々の問題が発生する。For this reason, for example, as shown in FIG. 3, the slag 4 may peel off and get stuck in the transfer portion 3 that transmits rotational force to the rotating side welded member 2 that is pressed against the stationary side welded member 1. However, various problems occur during long-term operation.
また、被溶接部材１，２が油圧回路や潤滑油経路などを
構成する部品である場合には、このスラグ４によって油
路がつまるなどの問題が発生する。Further, when the members 1 and 2 to be welded are parts constituting a hydraulic circuit or a lubricating oil path, problems such as clogging of the oil path occur due to the slag 4.
特に第３図に示すように被溶接部材１，２がパイプ材な
どの中空円筒体である場合には、円筒内面５に発生する
スラグ４は切削による除去が不可能な場合が多く、この
場合設計的な制約が生じるという問題もあった。In particular, when the members 1 and 2 to be welded are hollow cylindrical bodies such as pipe materials as shown in FIG. 3, it is often impossible to remove the slag 4 generated on the inner surface 5 of the cylinder by cutting. There was also the problem of design constraints.
また、このスラグ４の除去を切削や化学処理で行なう場
合には、除去のための工程が別に必要となり、このため
の専用機の設備コスト及び刃具薬品などの消耗品による
ランニングコストが上昇するという問題もあった。In addition, if this slag 4 is removed by cutting or chemical treatment, a separate removal process is required, which increases the equipment cost of a special machine for this purpose and the running cost due to consumables such as cutting tools and chemicals. There were also problems.
上記２件の公報による提案のうち前者は、発生するパリ
の形状を小さくすることは可能であるが、大気との接触
を防いでスラグの形成をなくす点については配慮されて
いなかった。また、後者は被溶接部材のサイズ形状に関
係なく溶接することばできるが、前者の提案と同様にス
ラグの発生を抑制する点には配慮されていなかった。Of the proposals in the above two publications, the former can reduce the shape of the generated particles, but does not take into account the prevention of contact with the atmosphere and the elimination of slag formation. Furthermore, although the latter can be used to weld regardless of the size and shape of the parts to be welded, similar to the former proposal, no consideration was given to suppressing the generation of slag.
本発明は上記事情に鑑みてなされたものであり。The present invention has been made in view of the above circumstances.
簡単な構造で溶接時に溶接パリの表面にスラグが形成さ
れることを防止して清浄な表面を得ることのできる摩擦
溶接装置を提供することを目的とする。To provide a friction welding device which has a simple structure and can prevent the formation of slag on the surface of a welding pad during welding and obtain a clean surface.
本発明は上記目的を達成するために、少なくとも一方が
中空円筒状の１対の被溶接部材の一方を回転可能に把持
し他方を固定して、前記１対の被溶接部材の接合面に対
して回転摩擦により加熱溶着可能とし、前記被溶接部材
相互に押圧力を印加して冶金的に結合させる摩擦溶接装
置において。In order to achieve the above object, the present invention rotatably grips one of a pair of members to be welded, at least one of which has a hollow cylindrical shape, and fixes the other to the joint surface of the pair of members to be welded. In a friction welding device that enables heat welding by rotational friction and applies a pressing force to the members to be welded to metallurgically join them.
前記被溶接部材の接合面内周にシールドガスを送給する
手段を主軸内を通して設けたものである。Means for feeding shielding gas to the inner periphery of the joint surface of the welded member is provided through the main shaft.
上記の構成によると、一方を回転させる主軸内を通して
被溶接部材の内周接合面及び溶接パリの周辺にシールド
ガスを噴出させることにより大気と遮断されるため、溶
接パリの表面には酸化物などのスラグが形成されること
なく、清浄な表面を得ることができる。このためスラグ
の形成を防止し、スラグの脱落による問題の発生を防ぎ
、かつスラグ除去のためのコスト上昇を抑えることがで
きる。According to the above configuration, shielding gas is ejected through the main shaft that rotates one side to the inner circumferential joint surface of the workpiece to be welded and around the welding pad, thereby shielding it from the atmosphere, so that oxides etc. A clean surface can be obtained without the formation of slag. Therefore, it is possible to prevent the formation of slag, prevent the occurrence of problems due to slag falling off, and suppress the increase in cost for slag removal.
以下、本発明に係る摩擦溶接装置の一実施例を図面を参
照して説明する。Hereinafter, one embodiment of a friction welding device according to the present invention will be described with reference to the drawings.
第１図に本発明の一実施例を示す。図において第３図に
示す従来例と同一または同等部分には同一符号を付して
示す。FIG. 1 shows an embodiment of the present invention. In the figure, parts that are the same or equivalent to those of the conventional example shown in FIG. 3 are designated by the same reference numerals.
被溶接部材２は中空円筒形状であり、主軸６に固定され
た回転チャックの爪８によって把持されている。一方、
被溶接部材１は図示せぬ固定チャックにより回転不能の
状態で把持されており、前記被溶接部材２と同軸上に接
合面９を介して当接対向している。The member to be welded 2 has a hollow cylindrical shape and is gripped by the claws 8 of a rotating chuck fixed to the main shaft 6. on the other hand,
The member to be welded 1 is held in a non-rotatable state by a fixed chuck (not shown), and coaxially abuts against the member to be welded 2 with a joint surface 9 interposed therebetween.
また、前記主軸６は図示せぬベアリングを介してヘッド
ストック１０に回転自在に支持されてお９１図示せぬモ
ータの駆動力によって回転する。Further, the main shaft 6 is rotatably supported by a headstock 10 via a bearing (not shown), and is rotated by the driving force of a motor (91), not shown.
主軸６は円筒状に形成されていて、内部にはパイプ状の
連結棒１１が軸方向に摺動可能に装着されている。この
連結棒１１は前記ヘッドストック１０の回転チャック７
と反対側の端面に固定された操作シリンダ１２によって
主軸６内を前後進することにより、丸ナツト１３を介し
てチャックピストン１４及びカムレバー１５が動作し、
前記回転チャック７の開閉動作を自動的に行なうように
なっている。The main shaft 6 is formed into a cylindrical shape, and a pipe-shaped connecting rod 11 is mounted inside thereof so as to be slidable in the axial direction. This connecting rod 11 is connected to the rotary chuck 7 of the headstock 10.
The chuck piston 14 and the cam lever 15 are operated via the round nut 13 by moving back and forth within the main shaft 6 by the operation cylinder 12 fixed to the end face on the opposite side.
The opening and closing operations of the rotary chuck 7 are automatically performed.
また、連結棒１１の内径部には軸方向にシールドガスパ
イプ１６が配設されており、このシールドガスパイプ１
６の先端にはシールドノズル１７が取付けられている。Further, a shield gas pipe 16 is arranged in the axial direction on the inner diameter part of the connecting rod 11, and this shield gas pipe 1
A shield nozzle 17 is attached to the tip of the nozzle 6 .
そしてこのシールドノズル１７に形成された噴出口１８
から不活性ガス１９が溶接バリ４に向かって噴出される
。And a spout 18 formed in this shield nozzle 17
An inert gas 19 is ejected from the welding burr 4 toward the welding burr 4 .
前記シールドガスパイプ１６はステー２０によってヘッ
ドストック１０に固定されており、またジヨイント２１
を介してシールドガスチューブ２２に連結されている。The shield gas pipe 16 is fixed to the headstock 10 by a stay 20, and a joint 21
It is connected to the shield gas tube 22 via.
このシールドガスチューブ２２は電磁バルブ２３、流量
調整器２４、圧力調整器２５を介して不活性ガスボンベ
２６に連結されている。This shield gas tube 22 is connected to an inert gas cylinder 26 via an electromagnetic valve 23, a flow regulator 24, and a pressure regulator 25.
上記のように構成された本実施例の作用を以下に説明す
る。The operation of this embodiment configured as described above will be explained below.
まず、操作シリンダ１２を動作させて中空円筒状の被溶
接部材２をチャック爪８で把持し、回転チャック７に固
定する０次に被溶接部材１を固定チャックに把持固定し
た後、この状態で第２図のタイムチャートに示したサイ
クルにより溶接を行なう１次に、主軸６を回転させると
ともに図示せぬ固定チャックを図示せぬ油圧機構により
前進させ、被溶接部材１，２の接合面９を接触させる。First, operate the operating cylinder 12 to grip the hollow cylindrical workpiece 2 with the chuck claws 8 and fix it to the rotary chuck 7.Next, after gripping and fixing the workpiece 1 to the fixed chuck, hold it in this state. First, welding is carried out according to the cycle shown in the time chart of FIG. bring into contact.
主軸６の回転開始から被溶接部材１，２の接合面９が接
触するまでの間に、タイマまたは固定チャックの移動ス
トロークによって動作するリミットスイッチなどによっ
て電磁バルブ２３を開くと、不活性ガスボンベ２６から
圧力調整器２５及び流量調整器２４を介して、所定圧力
、所定流量のＡｒやＨｅなとの不活性ガスが送気され、
シールドガスチューブ２２、ジヨイント２１、シールド
ガスパイプ１６を経て、シールドガスノズル１７の噴出
口１８から接合面９に向かって不活性ガス１９が噴出さ
れる。When the electromagnetic valve 23 is opened by a timer or a limit switch operated by the moving stroke of the fixed chuck between the start of rotation of the main shaft 6 and the time when the joint surfaces 9 of the workpieces 1 and 2 come into contact, the inert gas cylinder 26 is opened. An inert gas such as Ar or He is supplied at a predetermined pressure and a predetermined flow rate through a pressure regulator 25 and a flow rate regulator 24,
Inert gas 19 is ejected from the ejection port 18 of the shield gas nozzle 17 toward the joint surface 9 via the shield gas tube 22, joint 21, and shield gas pipe 16.
この状態でさらに固定チャックを前進させることにより
接合面９には摩擦圧力Ｐ□が作用し、溶接部は加熱され
溶接バリ４が形成される。このとき接合面９及び溶接バ
リ４の周辺はシールドガスパイプからの不活性ガス１９
の噴出によりシールドされており、大気との接触はたた
れている。このため溶接バリ４の表面には酸化物などの
スラグが形成されることなく、清浄な表面が得られる。By further advancing the stationary chuck in this state, frictional pressure P□ acts on the joint surface 9, the welding portion is heated and a welding burr 4 is formed. At this time, the area around the joint surface 9 and the welding burr 4 is filled with inert gas 19 from the shield gas pipe.
It is shielded by the eruption of water, and there is no contact with the atmosphere. Therefore, no slag such as oxide is formed on the surface of the welding burr 4, and a clean surface can be obtained.
回転チャック７が回転数Ｎで摩擦時間ｔ１の間回転し、
この摩擦時間１１が終了して回転チャック７の回転が停
止したときに、被溶接部材１，２は接触位置より摩擦寄
りしろＵ工たけ押圧される。The rotary chuck 7 rotates at a rotation speed N for a friction time t1,
When this friction time 11 ends and the rotation of the rotary chuck 7 stops, the members 1 and 2 to be welded are pressed a distance U distance closer to the friction than the contact position.
このときアプセット圧力Ｐ２ をアプセット時間ｔ２の
間付加し、アプセット寄りしろｕ、＝け抑圧する。アプ
セット時間ｔ２経過後アプセット圧力Ｐ２ を除荷した
後、アフタフロ一時間だけ不活性ガス１９を噴出し、こ
のアフタフロ一時間経過後電磁バルブ２３を閉じ、不活
性ガス１９の送気を停止する。At this time, an upset pressure P2 is applied for an upset time t2 to suppress the upset. After the upset time t2 has elapsed, the upset pressure P2 is released, and the inert gas 19 is ejected for one hour after the afterflow. After the afterflow one hour, the electromagnetic valve 23 is closed and the supply of the inert gas 19 is stopped.
このアフタフロ一時間の間不活性ガス１９を送気するこ
とにより、アプセット圧力Ｐ２ を除荷した後も高温状
態にある溶接バリ４の表面の酸化が防止され、摩擦溶接
完了後にも清浄な表面を有する溶接バリ４を形成するこ
とができる。By supplying the inert gas 19 for one hour after the after flow, oxidation of the surface of the welding burr 4, which remains at a high temperature even after the upset pressure P2 is removed, is prevented, and the surface remains clean even after friction welding is completed. Welding burrs 4 can be formed with
本実施例によれば、溶接バリ４が不活性ガス１９によっ
てシールドされているので、スラブの発生が防止され、
スラグの剥離脱落による溶接装置や被溶接部材１，２へ
の障害の発生を防止することができる。また、従来スラ
グ除去のため（こ必要であった専用の切削や化学処理の
ための装置や工程が不要となり、このための設備設置面
積が削、減され１匁具や薬品の交換などによる設備停止
時間も不要となり、かつ化学薬品などの危険物の取扱い
も不要となる。したがって設備コストやランニングコス
トが低減される。According to this embodiment, since the welding burr 4 is shielded by the inert gas 19, generation of slabs is prevented.
It is possible to prevent damage to the welding equipment and the members to be welded 1 and 2 due to peeling and falling of the slag. In addition, it eliminates the need for specialized cutting and chemical treatment equipment and processes that were previously required for slag removal, and reduces the installation area of equipment for this purpose. There is no need for downtime, and there is no need to handle hazardous materials such as chemicals.Therefore, equipment costs and running costs are reduced.
上記実施例では主軸６側にシールドガス経路を構成した
場合について説明したが、固定チャック側にシールドガ
ス経路を構成してもよい、また、不活性ガスとしてはＡ
ｒやＨｅなどの他に、必要に応じてＣＯ□やＮ２などの
準不活性ガスを使用してもよい。In the above embodiment, a case was explained in which the shielding gas path was configured on the main shaft 6 side, but the shielding gas path may also be configured on the fixed chuck side.
In addition to r and He, semi-inert gases such as CO□ and N2 may be used as necessary.
上述したように本発明によれば、摩擦溶接装置に取付け
られた１対の被溶接部材の接合面内周に一方を回転させ
る主軸内を通してシールドガスを送給するようにしたの
で、専用のスラグ除去のための設備や消耗品を不要とし
て溶接パリにスラグの発生を防止し、常に清浄な表面を
得ることができ、スラグの剥離脱落による事故の発生を
防ぐことができる。As described above, according to the present invention, shielding gas is supplied to the inner periphery of the joint surfaces of a pair of workpieces attached to a friction welding device through the main shaft that rotates one of the workpieces, so that a dedicated slag This eliminates the need for removal equipment or consumables, prevents the generation of slag on the welding pad, ensures a clean surface at all times, and prevents accidents caused by slag peeling off and falling off.
第１図は本発明に係る摩擦溶接装置の一実施例を示す一
部断面側面図、第２図は本実施例の作用を示すタイムチ
ャート、第３図は従来の摩擦溶接装置の要部を示す断面
図である。
１．２・・・被溶接部材、
４・・・溶接パリ（スラグ）、
６・・・主軸、
９・・・接合面。
１６・・・シールドガスパイプ、
１９・・・不活性ガス（シールドガス）。Fig. 1 is a partially sectional side view showing an embodiment of a friction welding device according to the present invention, Fig. 2 is a time chart showing the operation of this embodiment, and Fig. 3 shows the main parts of a conventional friction welding device. FIG. 1.2... Part to be welded, 4... Welding pad (slag), 6... Main shaft, 9... Joint surface. 16... Shield gas pipe, 19... Inert gas (shield gas).
Claims (3)
部材の一方を回転可能に把持し、他方を固定して、前記
１対の被溶接部材の接合面に対して回転摩擦により加熱
溶着可能とし、前記被溶接部材相互に押圧力を印加して
冶金的に結合させる摩擦溶接装置において、前記被溶接
部材の接合面内周にシールドガスを送給する手段を主軸
内を通して設けたことを特徴とする摩擦溶接装置。(1) One of a pair of members to be welded, at least one of which has a hollow cylindrical shape, is rotatably gripped, the other is fixed, and the welding surface of the pair of members to be welded is heated and welded by rotational friction. In the friction welding device for metallurgically joining the members to be welded by applying a pressing force to each other, a means for supplying a shielding gas to the inner periphery of the joint surface of the members to be welded is provided through the main shaft. Characteristic friction welding equipment.
を回転させる主軸内に設けられたパイプであることを特
徴とする特許請求の範囲第１項記載の摩擦溶接装置。(2) The friction welding apparatus according to claim 1, wherein the means for feeding the shielding gas is a pipe provided within the main shaft that rotates one of the members to be welded.
を固定する固定チャックに設けられたパイプであること
を特徴とする特許請求の範囲第１項記載の摩擦溶接装置
。(3) The friction welding apparatus according to claim 1, wherein the means for feeding the shielding gas is a pipe provided on a fixed chuck that fixes the other member to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15519587A JPS63317268A (en) | 1987-06-22 | 1987-06-22 | Friction welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15519587A JPS63317268A (en) | 1987-06-22 | 1987-06-22 | Friction welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63317268A true JPS63317268A (en) | 1988-12-26 |
Family
ID=15600572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15519587A Pending JPS63317268A (en) | 1987-06-22 | 1987-06-22 | Friction welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63317268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6834790B2 (en) * | 2002-04-20 | 2004-12-28 | Rolls-Royce Plc | Friction welding |
| KR100954190B1 (en) | 2002-12-24 | 2010-04-21 | 재단법인 포항산업과학연구원 | Welding apparatus having a gas cooling means |
-
1987
- 1987-06-22 JP JP15519587A patent/JPS63317268A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6834790B2 (en) * | 2002-04-20 | 2004-12-28 | Rolls-Royce Plc | Friction welding |
| KR100954190B1 (en) | 2002-12-24 | 2010-04-21 | 재단법인 포항산업과학연구원 | Welding apparatus having a gas cooling means |
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