JPH06312229A - Method for forming engaging surface for calking by electromagnetic forming or the like - Google Patents
Method for forming engaging surface for calking by electromagnetic forming or the likeInfo
- Publication number
- JPH06312229A JPH06312229A JP5102121A JP10212193A JPH06312229A JP H06312229 A JPH06312229 A JP H06312229A JP 5102121 A JP5102121 A JP 5102121A JP 10212193 A JP10212193 A JP 10212193A JP H06312229 A JPH06312229 A JP H06312229A
- Authority
- JP
- Japan
- Prior art keywords
- forming
- peripheral surface
- convex
- electromagnetic
- inner peripheral
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電磁成形等によるか
しめ用嵌合面の形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a caulking fitting surface by electromagnetic molding or the like.
【０００２】[0002]
【従来の技術】例えば、アルミニウム製の円筒パイプ材
の外周部に、アルミニウム製の短筒材が、接合一体化さ
れた構造の部品を製造する場合、従来、図１０に示され
るように、パイプ材（51）の外周部に、短筒材（52）を
配置し、そして、例えば上下の環状境界部を、ＴＩＧ、
ＭＩＧ、レーザー等の溶接によって隅肉溶接（53）（5
3）して接合したり、あるいは、パイプ材（51）内に、
電磁成形用コイルを挿入し、これに瞬間大電流を印加す
ることにより該パイプ材（51）の対応部分を拡管せしめ
て、該パイプ材（51）を短筒材（52）の内周部にかしめ
つけて接合するなどの方法が採用ないしは提案されてい
た。2. Description of the Related Art For example, in the case of manufacturing a component having a structure in which a short tubular material made of aluminum is joined and integrated to the outer peripheral portion of a cylindrical pipe material made of aluminum, conventionally, as shown in FIG. The short tubular material (52) is arranged on the outer peripheral portion of the material (51), and, for example, the upper and lower annular boundary portions are connected to the TIG,
Fillet welding by welding with MIG, laser, etc. (53) (5
3) and then join, or in the pipe material (51),
An electromagnetic forming coil is inserted and a large instantaneous current is applied to expand the corresponding portion of the pipe material (51) so that the pipe material (51) is placed inside the short tubular material (52). Methods such as caulking and joining have been adopted or proposed.
【０００３】しかしながら、溶接による接合方法では、
溶接時の熱影響により、接合部に強度低下をもたらした
り、接合に多くの時間を要する、などの問題があった。However, in the joining method by welding,
Due to the heat effect during welding, there have been problems such as a decrease in strength at the joint and a long time required for joining.
【０００４】また、電磁成形法では、溶接の場合のよう
な熱影響に起因した問題はなく、また、接合に要する時
間も短くてすむ、などのメリットを有するものの、その
反面、電磁成形するだけでは、接合強度の確保の面にお
いて難があり、必要な強度確保のために、非常に大きな
充電エネルギーを必要とする場合がある、などの問題が
あった。Further, the electromagnetic forming method does not have a problem due to the heat effect unlike in the case of welding and has an advantage that the time required for joining can be shortened, but on the other hand, only the electromagnetic forming is performed. However, there is a problem in that it is difficult to secure the bonding strength, and a very large charging energy may be required to secure the required strength.
【０００５】そこで、このような従来の電磁成形による
接合方法を改良し、パイプ材（51）と短筒材（52）との
嵌合部対向周面の少なくともいずれか一方に、凸及び／
又は凹を形成したものとし、両者の嵌合状態において両
嵌合面間に隙間が形成されるものとなすことが考えられ
る。これにより、電磁成形にて、パイプ材（51）の周壁
等が、該隙間内に、塑性変形されて、強い係合状態がえ
られ、接合強度の大幅アップが図れる。Therefore, such a conventional joining method by electromagnetic forming is improved so that at least one of the peripheral surfaces of the pipe member (51) and the short tubular member (52) facing each other at the fitting portion is convex and / or convex.
Alternatively, it is conceivable that a recess is formed and a gap is formed between both fitting surfaces in the fitted state of both. As a result, by electromagnetic forming, the peripheral wall of the pipe material (51) is plastically deformed in the gap, and a strong engagement state is obtained, so that the joint strength can be greatly increased.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
ように、嵌合周面に凹凸を形成して電磁成形する接合方
法では、凹凸の形成のために多くの時間を要し、電磁成
形単独の場合に比べて、接合品の生産性を低下させてし
まう、という問題を生じる。However, as described above, in the joining method of forming the unevenness on the fitting peripheral surface by electromagnetic forming, a lot of time is required for forming the unevenness, and the electromagnetic forming alone is required. As compared with the case, there is a problem that the productivity of the joined product is reduced.
【０００７】また、凹凸の形状・サイズは、確保すべき
接合強度を考慮した最適なものに設計することが望まれ
るところであるが、このようにして設計された凹凸の形
状等によっては、その加工、形成が非常に難しいもので
あったりすることも少なくない。Further, it is desired that the shape and size of the unevenness be designed to be optimum in consideration of the bonding strength to be secured. However, depending on the shape and the like of the unevenness thus designed, its processing Often, it is very difficult to form.
【０００８】この発明は、上記のような従来の技術背景
のもとで、電磁成形をはじめとする各種のかしめ法によ
り、部材同士を接合する方法において、部材同士の嵌合
部対向周面への凹凸の形成を、能率よく行うことができ
て、接合品の生産性向上を図ることができ、しかも、接
合性能等を重視した様々な態様の凹凸を、極めて容易に
形成することができる、電磁成形等によるかしめ用嵌合
面の形成方法を提供することを目的とする。[0008] In the method of joining members by various caulking methods including electromagnetic forming under the above-mentioned background of the prior art as described above, the present invention can be applied to a peripheral surface of a fitting portion facing each other. The unevenness can be efficiently formed, the productivity of the bonded product can be improved, and the unevenness in various aspects with emphasis on the bonding performance and the like can be extremely easily formed. An object of the present invention is to provide a method for forming a caulking fitting surface by electromagnetic molding or the like.
【０００９】[0009]
【課題を解決するための手段】上記目的において、この
発明は、電磁成形等によるかしめによって接合される金
属部材の嵌合予定周面に対向しうるように、環状に周方
向分割状態に複数個配置されると共に、該金属部材の嵌
合予定周面に対向される側の面に転写用の凹凸が設けら
れた凹凸形成用の型と、該凹凸成形用型を、金属部材の
嵌合部予定周面に対して接近・離反方向に、変位動せし
める駆動部と、を備えたかしめ用嵌合面の形成装置を用
い、各凹凸形成用型を金属部材の嵌合予定周面に対向せ
しめた状態に配置し、駆動部を駆動して凹凸成形用型を
該金属部材の嵌合予定周面側に移動せしめ、転写用の凹
凸を金属部材の嵌合予定周面に押し付けることにより、
凹凸形成用型の凹凸形状を、金属部材の嵌合予定周面に
転写する、ことを特徴とする電磁成形等によるかしめ用
嵌合面の形成方法を要旨とする。To achieve the above object, the present invention has a plurality of annularly divided circumferentially so as to be able to face the intended fitting peripheral surface of a metal member to be joined by caulking by electromagnetic forming or the like. A mold for forming an unevenness, which is arranged and has unevenness for transfer provided on the surface of the metal member facing the fitting peripheral surface, and the mold for forming the unevenness By using a caulking fitting surface forming device equipped with a drive unit that displaces in a direction toward and away from the planned peripheral surface, each concavo-convex forming die is opposed to the planned peripheral surface of the metal member. Placed in a state where the concave-convex molding die is moved to the fitting peripheral surface side of the metal member by driving the driving unit, and pressing the concavo-convex portion for transfer onto the planned peripheral surface fitting of the metal member,
A gist of a method for forming a fitting surface for caulking by electromagnetic molding or the like is characterized in that the uneven shape of a mold for forming unevenness is transferred to a peripheral surface of a metal member to be fitted.
【００１０】なお、上記「凹凸」「凹凸形成用の型」
「凹凸形状」等の語は、凹のみの場合、凸のみの場合、
凹凸両方の場合等を含む広い概念において使用してい
る。The above-mentioned "concavo-convex""concavo-convex forming mold"
Words such as "concave and convex shape" mean that only concave, only convex,
It is used in a wide range of concepts including both unevenness.
【００１１】[0011]
【作用】上記方法は、かしめ用嵌合面形成装置の凹凸形
成用の型を、金属部材の嵌合予定周面に対向するよう
に、配置し、そして、駆動部により、凹凸成形用型を、
金属部材の嵌合部予定周面に向けて、接近移動せしめ、
転写用の凹凸を金属部材の嵌合予定周面に押し付け、凹
凸形状を転写することにより、金属部材の嵌合予定周面
に凹凸形状を形成するものである。従って、このような
凹凸形状が、金属部材の嵌合予定周面に、能率よく形成
される。According to the above method, the concave and convex forming die of the caulking fitting surface forming device is disposed so as to face the peripheral surface of the metal member to be fitted, and the concave and convex forming die is driven by the drive section. ,
Move closer to the planned peripheral surface of the fitting part of the metal member,
The unevenness for transfer is pressed against the planned fitting peripheral surface of the metal member to transfer the uneven shape, thereby forming the uneven shape on the planned fitting peripheral surface of the metal member. Therefore, such a concavo-convex shape is efficiently formed on the expected fitting peripheral surface of the metal member.
【００１２】しかも、このような転写式の凹凸形成装置
を使用するものであることにより、凹凸形成用の型に、
様々な態様の転写用の凹凸を形成することで、金属部材
の嵌合予定周面に、様々な態様の凹凸形状が、容易に形
成される。Moreover, by using such a transfer type unevenness forming apparatus, a mold for forming unevenness can be obtained.
By forming the unevenness for transfer of various modes, the uneven shape of various modes is easily formed on the circumferential surface of the metal member to be fitted.
【００１３】[0013]
【実施例】次に、本発明方法を、図４に示されるよう
に、アルミニウム製のつば付き短筒材（２）を、アルミ
ニウム製のパイプ材（１）の外周部長さ方向中間部に、
電磁成形により、接合一体化する方法において、採用す
る場合の実施例について、説明する。EXAMPLE Next, as shown in FIG. 4, according to the method of the present invention, a short tubular member (2) made of aluminum and having a brim is provided on the middle portion of the outer peripheral portion of the aluminum pipe material (1) in the longitudinal direction.
An example of the case where the method is adopted in the method of joining and integrating by electromagnetic molding will be described.
【００１４】第１実施例では、図２（ロ）にされるよう
な短筒材（２）の内周面内に、図３に示されるように、
互いに独立しかつ傾斜方向を異にした多数個の傾斜状凹
部（３）…を形成する。In the first embodiment, as shown in FIG. 3, inside the inner peripheral surface of the short tubular member (2) as shown in FIG.
A large number of inclined concave portions (3) ... Which are independent of each other and have different inclination directions are formed.
【００１５】このような互いに独立しかつ傾斜方向を異
にした多数個の傾斜状凹部（３）…を形成することによ
り、電磁成形による接合後の両部材（１）（２）は、軸
線方向にも回転方向にも強く係合し、接合部強度を、軸
線方向と回転方向のいずれの方向においても、非常に高
いものにすることができる。By forming a large number of inclined recesses (3) ... Which are independent of each other and have different inclination directions, the two members (1) and (2) after joining by electromagnetic molding are axially formed. In addition, it is possible to strongly engage in the rotational direction as well, and to make the joint strength extremely high in both the axial direction and the rotational direction.
【００１６】これら傾斜状凹部（３）…の形成のため、
図１及び図２（イ）に示されるような形成装置（５）を
用いる。Due to the formation of these inclined recesses (3) ...
A forming apparatus (5) as shown in FIGS. 1 and 2A is used.
【００１７】同装置（５）において、（７）…は凹凸形
成用の型、（８）は駆動部である。In the same device (5), (7) ... Are molds for forming irregularities, and (8) is a drive section.
【００１８】凹凸形成用の型（７）…は、複数個、例え
ば図示のように４個用意され、短筒材（２）の内周面に
対向しうるように、環状に、周方向分割状態に、配設さ
れている。A plurality of, for example, four molds (7) for forming concavities and convexities are prepared, and are circumferentially divided into annular shapes so as to be opposed to the inner peripheral surface of the short tubular member (2). It is arranged in the state.
【００１９】各凹凸形成用の型（７）は、円弧状をした
ブレード状の型本体部（10）と、該型本体部（10）の背
面部に突設されたピストン部（11）とを備えている。そ
して、型本体部（10）の前面部には、上記傾斜状凹部
（３）…を形成するための転写用の、多数の傾斜状凸刃
部（12）…が、ハの字を描くように、設けられている。The mold (7) for forming each concavo-convex includes an arc-shaped blade-shaped mold body (10) and a piston portion (11) projecting from the back surface of the mold body (10). Is equipped with. On the front surface of the die body (10), a large number of inclined convex blades (12) for transfer for forming the inclined concaves (3) ... Is provided.
【００２０】型本体部（10）において、この傾斜状凸刃
部（12）…を除く部分は、剛性確保のため、例えば炭素
工具鋼にて製作され、傾斜状凸刃部（12）…は、短筒材
（２）の内周面への良好な転写性、耐摩耗性を確保すべ
く、硬質材、例えば超硬合金にて製作されている。In the mold body (10), parts other than the slanted convex blades (12) are made of, for example, carbon tool steel in order to secure rigidity, and the slanted convex blades (12) ... In order to secure good transferability to the inner peripheral surface of the short tubular material (2) and wear resistance, it is made of a hard material, for example, a cemented carbide.
【００２１】各傾斜状凸刃部（12）…の高さは、接合強
度の向上に効果ある傾斜状凹部（３）…を形成すること
ができるものであって、かつ、転写時に短筒材（２）の
内周面に良好な状態で食込みうる範囲の高さに設計され
るのが普通である。そのような高さ範囲の具体例を挙示
すれば、例えば１．０〜２．０ｍｍである。しかし、こ
の高さは、各種条件によってケースバイケースに決定さ
れるものであり、この範囲に限定されるものではない。The height of each of the inclined convex blade portions (12) ... Can form the inclined concave portions (3) ... Which are effective in improving the bonding strength, and at the time of transfer, the short tubular member. It is usual that the inner peripheral surface of (2) is designed to have a height in a range where it can bite in a good state. A specific example of such a height range is, for example, 1.0 to 2.0 mm. However, this height is determined on a case-by-case basis according to various conditions, and is not limited to this range.
【００２２】駆動部（８）は、油圧ないしは空圧等のシ
リンダー装置によるもので、凹凸形成用の型（８）…に
囲まれた中に、上下方向に向けられて、配設されてい
る。そして、そのシリンダー（13）内には、その周壁を
通じて、上記凹凸形成用の型（７）…のピストン部（1
1）…が挿入され、ピストン（14）の作動によるシリン
ダー（13）内の圧力変化に応じて、凹凸形成用の型
（７）…が側方に向けて進退作動されるようになされて
いる。The drive unit (8) is formed by a cylinder device such as hydraulic pressure or pneumatic pressure, and is arranged in the vertical direction in a space surrounded by the molds (8) for forming irregularities. . And, in the cylinder (13), through the peripheral wall, the piston portion (1
1) are inserted, and the molds (7) for forming concavities and convexities are adapted to be moved forward and backward in response to changes in pressure in the cylinder (13) due to the operation of the piston (14). .
【００２３】短筒材（２）内周面への傾斜状凹部（３）
…の形成は、上記形成装置（５）を用いて、次のように
して行う。Inclined concave portion (3) to the inner peripheral surface of the short tubular member (2)
The formation of ... Is carried out as follows using the forming apparatus (5).
【００２４】即ち、図１に示されるように、形成装置
（５）の凹凸形成用の型（７）…を、短筒材（２）の嵌
合予定周面である内周面（2a）に対向しうるように、該
短筒材（２）内に挿入配置する。そして、シリンダー装
置（８）を駆動して、ピストン（14）にてシリンダー
（13）内の圧力を高め、各凹凸形成用の型（７）…を径
方向外方に向けて進出移動させていく。すると、各凹凸
形成用の型（７）…の前面部が短筒材（２）の内周面に
押し付けられ、傾斜状凸刃部（12）…の食込みによっ
て、該短筒材（２）の内周面に、図３に示されるよう
な、互いに独立した多数の傾斜状凹部（３）…が転写形
成される。That is, as shown in FIG. 1, the concave-convex forming mold (7) of the forming device (5) is provided with an inner peripheral surface (2a) which is a peripheral surface of the short tubular member (2) to be fitted. It is inserted and arranged in the short tubular member (2) so as to be opposed to. Then, the cylinder device (8) is driven so that the pressure in the cylinder (13) is increased by the piston (14), and the molds (7) for forming irregularities are moved outward in the radial direction. Go. Then, the front surface of the molds (7) for forming irregularities is pressed against the inner peripheral surface of the short tubular material (2), and the inclined convex blade portions (12) bite into the short tubular material (2). As shown in FIG. 3, a large number of independent inclined concave portions (3) ... Are transferred and formed on the inner peripheral surface of the.
【００２５】なお、この場合、形成しようとする傾斜状
凹部（３）…の深さを所望の深さに設定する目的におい
て、シリンダー装置（13）による各型（７）…の押付け
力を、制御するようにしてもよい。In this case, for the purpose of setting the depth of the inclined concave portions (3) to be formed to a desired depth, the pressing force of each mold (7) by the cylinder device (13) is It may be controlled.
【００２６】このようにして傾斜状凹部（３）…が形成
された短筒材（２）は、その後、図４に示されるよう
に、パイプ材（１）の外周部に嵌合配置される。この嵌
合配置状態において、両部材（１）（２）の対向周面間
には、同図に示されるように、周囲全体を囲まれて互い
に独立しかつ傾斜方向を異にする多数の隙間（16）…が
形成される。The short tubular member (2) having the inclined concave portions (3) formed in this manner is then fitted and arranged on the outer peripheral portion of the pipe member (1) as shown in FIG. . In this fitted arrangement state, as shown in the figure, a large number of gaps surrounded by the entire periphery and independent of each other and having different inclination directions are provided between the opposing peripheral surfaces of both members (1) and (2). (16) ... is formed.
【００２７】そして、用意した電磁成形装置（18）の成
形用コイル（19）を、パイプ材（１）内に挿入配置し、
該コイル（19）に瞬間大電流を流し、パイプ材（１）を
拡管する。すると、図５（イ）（ロ）に示されるよう
に、パイプ材（１）の周壁が短筒材（２）の内周面に圧
接されると共に、両部材（１）（２）の間に形成されて
いる隙間（16）…を利用して、パイプ材（１）の周壁の
一部が、塑性変形して短筒材（２）の各傾斜凹部（３）
…内に突出（23）…され、各突出部（23）…が各傾斜状
凹部（４）…に係合されて、両部材（１）（２）が接合
一体化される。Then, the molding coil (19) of the prepared electromagnetic molding device (18) is inserted and arranged in the pipe material (1),
A momentary large current is applied to the coil (19) to expand the pipe material (1). Then, as shown in FIGS. 5A and 5B, the peripheral wall of the pipe material (1) is pressed against the inner peripheral surface of the short tubular material (2), and the space between the members (1) and (2) is increased. A part of the peripheral wall of the pipe material (1) is plastically deformed by utilizing the gaps (16) formed in the.
The protrusions (23) are protruded inward, the protrusions (23) are engaged with the inclined concave portions (4), and the members (1) and (2) are joined and integrated.
【００２８】なお、電磁成形装置（18）は、図４（イ）
に示されるように、コンデンサー（20）とスイッチ（2
1）を介在させた電気回路（22）に成形用コイル（19）
が接続された構成の一般的な拡管用成形装置による。The electromagnetic forming device (18) is shown in FIG.
The condenser (20) and switch (2
Forming coil (19) on electric circuit (22) with 1)
According to a general pipe-expansion molding apparatus having a structure in which
【００２９】このようにして接合一体化された接合品の
接合部は、図５（イ）（ロ）に示されるように、塑性変
形した突出部（23）…が、独立状で傾斜方向を異にする
各傾斜状凹部（３）…内に突出して、該傾斜状凹部
（３）…と、軸線方向においても回転方向においても、
係合されたものとなっており、両者の接合強度が、軸線
方向においても回転方向においても、非常に高いものに
なる。従ってまた、電磁成形に必要なエネルギーを減少
しても、十分な強度の接合部を形成することができて、
電磁成形用コイル（19）の寿命を延ばすなどの効果も発
揮される。As shown in FIGS. 5 (a) and (b), the plastically deformed protrusions (23) ... Are independent of each other in the inclined direction, as shown in FIGS. Projecting into the different inclined recesses (3) ... and the inclined recesses (3) ...
Since they are engaged with each other, the bonding strength between them is extremely high in both the axial direction and the rotation direction. Therefore, even if the energy required for electromagnetic forming is reduced, it is possible to form a joint with sufficient strength,
Effects such as extending the life of the electromagnetic forming coil (19) are also exhibited.
【００３０】以上の説明のように、上記実施例にかかる
電磁成形用嵌合面の形成方法は、転写式の嵌合面形成装
置（５）を用いて、短筒材（２）の内周面に凹凸形状を
転写するものであるから、該短筒材（２）内周面への傾
斜状凹部（３）…の形成を、能率的に行うことができ、
ひいては、接合品の生産性向上を図ることができる。As described above, in the method for forming the electromagnetic fitting surface according to the above embodiment, the transfer fitting surface forming device (5) is used to form the inner circumference of the short tubular member (2). Since the concavo-convex shape is transferred to the surface, the inclined concave portions (3) ... Can be efficiently formed on the inner peripheral surface of the short tubular material (2),
As a result, the productivity of the joined product can be improved.
【００３１】しかも、このように転写式の嵌合面形成装
置（５）を用いるものであるから、接合強度確保という
面で非常に有利な効果を発揮しうる、互いに独立して傾
斜方向を異にする多数の傾斜状凹部（３）…を、極めて
容易に形成することができ、ひいては、接合強度に非常
に優れた最適な接合品の設計・製造を、容易に実現する
ことができる。In addition, since the transfer-type fitting surface forming device (5) is used as described above, the tilt directions are different from each other, which can exert a very advantageous effect in terms of securing the bonding strength. It is possible to extremely easily form a large number of inclined concave portions (3) ... And, it is possible to easily realize the design and manufacture of an optimum joined product having extremely excellent joining strength.
【００３２】図６ないし図８に示される第２実施例で
は、形成装置（５）において、その凹凸形成用の型
（７）…のブレード状型本体部（10）の前面に、上記の
ような傾斜状凸刃部（12）…に代えて、上下方向に向け
られた長方形状の縦向き凸刃部（25）…と、左右方向に
向けられた長方形状の横向き凸刃部（26）…とが、それ
ぞれ所定個数、互いに独立状に設けられたものとなされ
ている。In the second embodiment shown in FIGS. 6 to 8, in the forming apparatus (5), the above-mentioned pattern is formed on the front surface of the blade-shaped die main body (10) of the die (7) for forming irregularities. In place of the slanted convex blades (12) ... Vertically-oriented rectangular convex blades (25) oriented in the vertical direction and rectangular lateral convex blades (26) oriented in the horizontal direction. , And a predetermined number of them are provided independently of each other.
【００３３】このような形成装置（５）を用いることに
よって、短筒材（２）の内周面に、これらの縦向き凸刃
部（25）…及び横向き凸刃部（26）…の形状に対応し
た、互いに独立した多数の縦向き凹部（28）…及び横向
き凹部（29）…を転写形成することができる。By using such a forming device (5), the shape of the vertical convex blade portions (25) and the horizontal convex blade portions (26) on the inner peripheral surface of the short tubular member (2). It is possible to transfer and form a large number of vertical recesses (28) ... And horizontal recesses (29) ...
【００３４】このような嵌合内周面に形成した短筒材
（２）を、図７に示されるように、パイプ材（１）の外
周部に嵌合配置し、そして、上記と同様に電磁成形コイ
ル（19）にてパイプ材（１）を拡管する。すると、図８
（イ）（ロ）に示されるように、パイプ材（１）が短筒
材（２）に圧接されると共に、両部材（１）（２）の間
に形成されている隙間（30）…を利用して、パイプ材
（１）の周壁の一部が、塑性変形して短筒材（２）の各
縦向き凹部（28）…及び横向き凹部（29）…内に突出
（31）…され、各突出部（31）…がこれら各凹部（28）
…（29）…に係合されて、両部材（１）（２）が接合一
体化される。The short tubular material (2) formed on the fitting inner peripheral surface is fitted and arranged on the outer peripheral portion of the pipe material (1) as shown in FIG. 7, and in the same manner as described above. The pipe material (1) is expanded by the electromagnetic forming coil (19). Then, as shown in FIG.
As shown in (a) and (b), the pipe material (1) is pressed against the short tubular material (2) and the gap (30) formed between both members (1) and (2). By utilizing, the part of the peripheral wall of the pipe material (1) is plastically deformed and protrudes into each of the vertical concave portions (28) and the horizontal concave portions (29) of the short tubular material (2) (31). The protrusions (31) are replaced by the recesses (28).
(29) ... are engaged with each other to join and integrate both members (1) and (2).
【００３５】このようにして接合一体化された接合品の
接合部は、上記のように塑性変形した突出部（31）…
が、独立状の各傾斜状凹部（28）…（29）…と軸線方向
においても回転方向においても係合されたものとなって
おり、その接合強度が軸線方向においても回転方向にお
いても非常に高いものになる。The joint portion of the joint product thus jointed and integrated is the projecting portion (31) plastically deformed as described above.
Is engaged with each of the independent inclined recesses (28) ... (29) in both the axial direction and the rotation direction, and the joint strength is extremely high in both the axial direction and the rotation direction. It will be expensive.
【００３６】このように、凹凸形成用の型（７）…の型
本体部（10）…の前面側に設けられる刃部（12）（25）
（26）を種々変更するだけで、接合に適した様々な凹凸
形状を部材の嵌合予定周面に形成することができ、ひい
ては、接合強度等の接合性能を重視した凹凸形状の設計
を自由に行うことができて、強度等の上から最適な接合
品を製造することが可能となる。As described above, the blade portions (12) (25) provided on the front side of the die body (10) of the die (7) for forming irregularities.
By simply changing (26), various uneven shapes suitable for joining can be formed on the mating peripheral surface of the member, and as a result, it is possible to freely design the uneven shape with emphasis on joining performance such as joining strength. Therefore, it is possible to manufacture an optimum bonded product in terms of strength and the like.
【００３７】因みに、図９に示されるように、肉厚１．
６ｍｍのＡ６０６１合金製のパイプ材（１）の外周部
に、内径４８ｍｍ、肉厚３ｍｍのＡ６０６１合金製の短
筒材（２）を電磁成形により接合する場合において、図
６に示されるような縦向き凸刃部（25）…と横向き凸刃
部（26）…とを有する型（７）…を周方向に８個配設し
た成形装置を用い、短筒材（２）の内周部に、幅５ｍ
ｍ、深さ１ｍｍ、長さ１５ｍｍの縦向き及び横向きの各
凹部を形成した場合と、このような凹部を形成しない場
合とについて、充電エネルギーを種々変化させて接合し
た接合品の限界トルクを調査して比較したところ、同グ
ラフに示されるデータがえられた。Incidentally, as shown in FIG. 9, the wall thickness 1.
When an A6061 alloy short tube member (2) having an inner diameter of 48 mm and a wall thickness of 3 mm is joined to the outer peripheral portion of a 6 mm A6061 alloy pipe material (1) by electromagnetic forming, a vertical length as shown in FIG. Using a molding device in which eight molds (7) having a convex convex blade portion (25) and a lateral convex blade portion (26) are arranged in the circumferential direction, an inner peripheral portion of the short tubular member (2) is used. , Width 5m
Investigate the limit torque of the joined product with various charging energies in the case of forming vertical and horizontal recesses of m, depth of 1 mm, and length of 15 mm, and in the case of not forming such recesses. Then, the data shown in the same graph were obtained.
【００３８】このデータにより、短筒材（２）の内周面
に縦向き及び横向きの互いに独立した凹部を形成するこ
とによって、接合強度を大幅に向上しうることを確認し
えた。From this data, it was confirmed that the joint strength can be significantly improved by forming vertical and horizontal concave portions independent of each other on the inner peripheral surface of the short tubular member (2).
【００３９】以上に、実施例を説明したが、本発明方法
は、電磁成形による接合方法への適用に限定されるもの
ではなく、その他の各種のかしめによる接合方法におい
ても広く適用されうるものであることはいうまでもな
い。また、上記実施例では、嵌合予定周面に凹部を転写
形成する例を示しているが、凸部を転写形成するように
してもよいし、凹部と凸部の両方を転写形成するように
してもよい。また、その凹部及び／又は凸部の形状、個
数等には特に制限はない。更に、上記実施例では、パイ
プ材（１）と短筒材（２）との嵌合部の対向周面のう
ち、短筒材（２）の内周面に凹部を形成する場合につい
て説明しているが、パイプ材（１）の外周面側にこのよ
うな凹部等を形成してもよいし、対向する両周面に形成
するようにしてもよい。また、上記実施例では、パイプ
材（１）と短筒材（２）との接合という特定物品同士の
接合方法において適用したケースを説明しているが、要
は、第１部材の外周部に第２部材の環状部を嵌合して接
合する各種の場合において広く適用されうるものであ
る。その他、発明概念の範囲内で種々の変更が可能であ
る。Although the embodiments have been described above, the method of the present invention is not limited to the application to the joining method by electromagnetic forming, and can be widely applied to other various joining methods by caulking. Needless to say. Further, in the above embodiment, an example in which a concave portion is transferred and formed on the planned fitting peripheral surface is shown, but a convex portion may be transferred and formed, or both a concave portion and a convex portion may be transferred and formed. May be. Further, there is no particular limitation on the shape and the number of the concave portions and / or the convex portions. Further, in the above-mentioned embodiment, the case where the concave portion is formed on the inner peripheral surface of the short tubular material (2) among the opposing peripheral surfaces of the fitting portion of the pipe material (1) and the short tubular material (2) will be described. However, such a recess or the like may be formed on the outer peripheral surface side of the pipe material (1), or may be formed on both opposing peripheral surfaces. Further, in the above-mentioned embodiment, the case applied in the joining method of the specific articles of joining the pipe material (1) and the short tubular material (2) is described, but the point is that the outer peripheral portion of the first member is It can be widely applied in various cases in which the annular portion of the second member is fitted and joined. Besides, various modifications can be made within the scope of the inventive concept.
【００４０】[0040]
【発明の効果】上述の次第で、この発明の電磁成形等に
よるかしめ用嵌合面の形成方法は、転写式の嵌合面形成
装置を用いて、金属部材の嵌合予定周面に電磁成形等に
よるかしめ用の凹凸形状を転写するものである。As described above, according to the method of forming the caulking fitting surface by the electromagnetic molding or the like of the present invention, the transfer fitting surface forming device is used to electromagnetically mold the peripheral surface of the metal member to be fitted. This is to transfer the concavo-convex shape for caulking due to the above.
【００４１】従って、該金属部材の嵌合予定周面への凹
凸形状の形成を、能率良く行うことができ、ひいては、
接合品の生産性向上を図ることができる。Therefore, it is possible to efficiently form the concave-convex shape on the peripheral surface of the metal member to be fitted, and by extension,
It is possible to improve the productivity of the joined product.
【００４２】しかも、凹凸形成用型に様々な態様の凹凸
形状を形成することにより、金属部材の嵌合予定周面
に、様々な態様の凹凸形状を、極めて容易に、形成する
ことができ、ひいては、例えば、接合強度等の接合性能
を重視した凹凸形状の設計を自由に行うことができて、
強度等の面から最適な接合品を製造することができる。In addition, by forming various shapes of unevenness on the unevenness forming die, various shapes of unevenness can be formed extremely easily on the fitting peripheral surface of the metal member. As a result, for example, it is possible to freely design an uneven shape with an emphasis on bonding performance such as bonding strength,
An optimal bonded product can be manufactured in terms of strength and the like.
【図１】嵌合面形成装置を用いて短筒材の内周部に互い
に独立した多数個の凹部を形成するところを示すもの
で、図（イ）は断面平面図、図（ロ）は断面側面図であ
る。FIG. 1 shows that a plurality of independent recesses are formed in the inner peripheral portion of a short tubular member by using a fitting surface forming device. FIG. 1A is a sectional plan view and FIG. It is a sectional side view.
【図２】図（イ）は嵌合面形成装置の斜視図、図（ロ）
は短筒材の斜視図である。FIG. 2A is a perspective view of the fitting surface forming device, and FIG.
FIG. 4 is a perspective view of a short tubular member.
【図３】多数個の凹部が形成された短筒材の斜視図であ
る。FIG. 3 is a perspective view of a short tubular member having a large number of recesses formed therein.
【図４】短筒材とパイプ材とを電磁成形により接合一体
化するところを示すもので、図（イ）は断面側面図、図
（ロ）は図（イ）のＩＶ−ＩＶ線断面図である。4A and 4B show a state where a short tubular member and a pipe member are joined and integrated by electromagnetic forming. FIG. 4A is a sectional side view, and FIG. 4B is a sectional view taken along line IV-IV in FIG. 4A. Is.
【図５】接合品を示すもので、図（イ）は側面断面図、
図（ロ）は図（イ）のＶ−Ｖ線断面図である。FIG. 5 shows a joined product, FIG. 5 (a) is a side sectional view,
FIG. 6B is a sectional view taken along line VV of FIG.
【図６】他の実施例にかかる嵌合面形成装置の斜視図で
ある。FIG. 6 is a perspective view of a fitting surface forming device according to another embodiment.
【図７】図６に示される嵌合面形成装置にて内周面に凹
部が形成された短筒材をパイプ材の外周面に嵌合し、電
磁成形を行おうとするところを示すもので、図（イ）は
断面側面図、図（ロ）は図（イ）のＶＩＩ−ＶＩＩ線断
面図である。7 is a view showing that a short tubular member having a concave portion formed on the inner peripheral surface thereof is fitted to the outer peripheral surface of a pipe material by the fitting surface forming device shown in FIG. 6 and electromagnetic molding is performed. , (A) is a sectional side view, and FIG. (B) is a sectional view taken along line VII-VII in FIG.
【図８】図７に示される組立て体に電磁成形して接合一
体化した接合品を示すもので、図（イ）は断面側面図、
図（ロ）は図（イ）のＶＩＩＩ−ＶＩＩＩ線断面図であ
る。8 shows a joined product obtained by electromagnetically molding and joining the assembly shown in FIG. 7, wherein FIG. 8A is a sectional side view,
FIG. 6B is a sectional view taken along the line VIII-VIII of FIG.
【図９】短筒材の内周面に多数個の凹部を形成した場合
と形成しない場合について、電磁成形のための充電エネ
ルギーと接合品の限界トルクとの関係を示すグラフ図で
ある。FIG. 9 is a graph showing the relationship between the charging energy for electromagnetic forming and the limit torque of the joined product in the case where a large number of recesses are formed on the inner peripheral surface of the short tubular material and in the case where they are not formed.
【図１０】従来例を示すもので、図（イ）は部材同士の
嵌合工程を示す斜視図、図（ロ）は部材同士を接合一体
化した接合品を示す断面側面図である。FIG. 10 shows a conventional example, FIG. 10A is a perspective view showing a step of fitting members together, and FIG. 10B is a cross-sectional side view showing a joined product in which members are joined and integrated.
１…パイプ材 ２…短筒材（金属部材） 2a…内周面（嵌合予定周面） ３…傾斜状凹部 ７…凹凸形成用の型 ８…シリンダー装置（駆動部） 12…凸刃部 19…電磁成形用コイル DESCRIPTION OF SYMBOLS 1 ... Pipe material 2 ... Short cylinder material (metal member) 2a ... Inner peripheral surface (peripheral surface to be fitted) 3 ... Inclined concave portion 7 ... Mold for forming irregularities 8 ... Cylinder device (driving portion) 12 ... Convex blade portion 19 ... Electromagnetic forming coil
Claims (1)
れる金属部材の嵌合予定周面に対向しうるように、環状
に周方向分割状態に複数個配置されると共に、該金属部
材の嵌合予定周面に対向される側の面に転写用の凹凸が
設けられた凹凸形成用の型と、 該凹凸成形用型を、金属部材の嵌合部予定周面に対して
接近・離反方向に、変位動せしめる駆動部と、 を備えたかしめ用嵌合面の形成装置を用い、 各凹凸形成用型を金属部材の嵌合予定周面に対向せしめ
た状態に配置し、駆動部を駆動して凹凸成形用型を該金
属部材の嵌合予定周面側に移動せしめ、転写用の凹凸を
金属部材の嵌合予定周面に押し付けることにより、凹凸
形成用型の凹凸形状を、金属部材の嵌合予定周面に転写
する、ことを特徴とする電磁成形等によるかしめ用嵌合
面の形成方法。1. A plurality of annular members are arranged in a circumferentially divided state in such a manner that they can be opposed to a planned fitting peripheral surface of a metal member joined by caulking by electromagnetic forming or the like, and the metallic member is planned to be fitted. A concave-convex forming die having a concave-convex surface for transfer provided on the surface facing the peripheral surface, and the concave-convex molding die in the approaching and separating directions with respect to the planned peripheral surface of the fitting portion of the metal member. Using a caulking mating surface forming device equipped with a driving part for displacement movement, each concavo-convex forming die is arranged in a state of being opposed to the planned peripheral surface of the metal member, and the driving part is driven. The concavo-convex forming die is moved to the peripheral surface of the metal member to be fitted, and the concavo-convex for transfer is pressed against the peripheral surface of the metallic member to be fitted, so that the concavo-convex shape of the concavo-convex forming mold is fitted to the metallic member. The shape of the mating surface for caulking by electromagnetic molding, etc., characterized in that it is transferred to the peripheral surface to be joined How to do it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5102121A JPH06312229A (en) | 1993-04-28 | 1993-04-28 | Method for forming engaging surface for calking by electromagnetic forming or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5102121A JPH06312229A (en) | 1993-04-28 | 1993-04-28 | Method for forming engaging surface for calking by electromagnetic forming or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06312229A true JPH06312229A (en) | 1994-11-08 |
Family
ID=14318969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5102121A Pending JPH06312229A (en) | 1993-04-28 | 1993-04-28 | Method for forming engaging surface for calking by electromagnetic forming or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06312229A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004026596A1 (en) * | 2002-09-17 | 2004-04-01 | Bridgestone Corporation | Runflat tire support body and method of producing the same, and runflat tire |
| KR100427370B1 (en) * | 2001-11-29 | 2004-04-14 | 현대자동차주식회사 | An apparatus using electromagnetic processing to combination with two things |
| JP2013504475A (en) * | 2009-09-16 | 2013-02-07 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Structural members for automobiles |
| JP2019130534A (en) * | 2018-01-29 | 2019-08-08 | トヨタ自動車株式会社 | Electromagnetic molding method |
| JP2019141856A (en) * | 2018-02-16 | 2019-08-29 | トヨタ自動車株式会社 | Manufacturing method of pipe with cast component |
-
1993
- 1993-04-28 JP JP5102121A patent/JPH06312229A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100427370B1 (en) * | 2001-11-29 | 2004-04-14 | 현대자동차주식회사 | An apparatus using electromagnetic processing to combination with two things |
| WO2004026596A1 (en) * | 2002-09-17 | 2004-04-01 | Bridgestone Corporation | Runflat tire support body and method of producing the same, and runflat tire |
| CN100387447C (en) * | 2002-09-17 | 2008-05-14 | 株式会社普利司通 | Runflat tire support body and method of producing the same, and runflat tire |
| JP2013504475A (en) * | 2009-09-16 | 2013-02-07 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Structural members for automobiles |
| US9254769B2 (en) | 2009-09-16 | 2016-02-09 | Johnson Controls Gmbh | Structural element for a motor vehicle |
| JP2019130534A (en) * | 2018-01-29 | 2019-08-08 | トヨタ自動車株式会社 | Electromagnetic molding method |
| JP2019141856A (en) * | 2018-02-16 | 2019-08-29 | トヨタ自動車株式会社 | Manufacturing method of pipe with cast component |
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