JP2902131B2 - Joint structure and joining method between aluminum material and copper material - Google Patents
Joint structure and joining method between aluminum material and copper materialInfo
- Publication number
- JP2902131B2 JP2902131B2 JP3005165A JP516591A JP2902131B2 JP 2902131 B2 JP2902131 B2 JP 2902131B2 JP 3005165 A JP3005165 A JP 3005165A JP 516591 A JP516591 A JP 516591A JP 2902131 B2 JP2902131 B2 JP 2902131B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- joining
- copper
- copper material
- joining method
- 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.)
- Expired - Lifetime
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、接合面積の大きいアル
ミニウム材と銅材とに適した接合構造及び接合方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure and a joining method suitable for an aluminum material and a copper material having a large joining area.
【０００２】[0002]
【従来の技術】アルミニウム材と銅材との接合部材は、
例えば、変圧器の口出部のようなアルミニウム材と銅材
との切換え部分に用いられている。従来のこの種の接合
構造は、アルミニウム材と銅材とのそれぞれの直線上の
端部が単純に接合されたもので、一つの接合面からなる
ものである。従来のこの種の接合方法としては、アルミ
ニウム材と銅材との端部を突き合わせて通電により加熱
させるとともにアルミニウム材と銅材とに圧力を加えて
接合させる通電加熱圧接や、熱を加えずにアルミニウム
材と銅材とに圧力を加えて接合させる冷間圧接がある。
これらの方法によれば、アルミニウムと銅との硬くて脆
い合金層が生じにくいため、強度に優れた接合部を得る
ことができる。2. Description of the Related Art A joining member between an aluminum material and a copper material is as follows.
For example, it is used for a switching portion between an aluminum material and a copper material, such as a lead portion of a transformer. In this type of conventional bonding structure, the straight ends of the aluminum material and the copper material are simply bonded to each other, and have a single bonding surface. As a conventional joining method of this kind, an electric heating and pressure welding in which the ends of an aluminum material and a copper material are heated by energization while applying pressure to the aluminum material and the copper material, and without applying heat. There is cold pressure welding in which pressure is applied to an aluminum material and a copper material to join them.
According to these methods, a hard and brittle alloy layer of aluminum and copper is unlikely to be formed, so that a joint having excellent strength can be obtained.
【０００３】[0003]
【発明が解決しようとする課題】ところで、このような
接合構造及び接合方法では、接合面積に比例して電流又
は圧力を大きくする必要がある。そのため、接合面積の
大きいアルミニウム材とと銅材との接合に際しては、非
常に大きな設備を必要とした。By the way, in such a joining structure and a joining method, it is necessary to increase a current or a pressure in proportion to a joining area. Therefore, when joining the aluminum material and the copper material having a large joining area, very large facilities were required.
【０００４】そこで、この発明の目的は、接合面積の大
きいアルミニウム材と銅材との接合に際しても、大きな
設備を必要としない接合構造及び接合方法を提供するこ
とにある。An object of the present invention is to provide a joining structure and a joining method which do not require a large facility even when joining an aluminum material and a copper material having a large joining area.
【０００５】[0005]
【課題を解決するための手段】この発明に係るアルミニ
ウム材と銅材との接合構造及び接合方法は、前記目的を
達成した次のようなものである。A joining structure and a joining method of an aluminum material and a copper material according to the present invention are as follows which achieve the above object.
【０００６】この発明に係る接合構造は、接合面が複数
の突片によって分割された銅材と、上記突片の端部に一
端が圧接された複数のアルミニウム接続材と、これらの
アルミニウム接続材の他端が接合されたアルミニウム材
とからなるものである。[0006] The joining structure according to the present invention comprises a copper material having a joining surface divided by a plurality of protruding pieces, a plurality of aluminum connecting materials having one end pressed against the ends of the protruding pieces, and an aluminum connecting material. Is made of an aluminum material to which the other end is joined.
【０００７】この発明に係る接合方法は、銅材に形成さ
れた複数の突片の各端部にアルミニウム接続材の一端を
順次圧接し、これらのアルミニウム接続材の他端をアル
ミニウム材に接合するものである。In the joining method according to the present invention, one end of an aluminum connecting material is sequentially pressed against each end of a plurality of protruding pieces formed on a copper material, and the other end of the aluminum connecting material is joined to the aluminum material. Things.
【０００８】また、ここでいう圧接とは通電加熱圧接、
冷間圧接等を包含するものである。さらに、ここでいう
接合とは圧接、溶接、ろう付け等を包含するものであ
る。[0008] The term "pressure welding" used herein refers to electric heating and pressure welding.
It includes cold pressure welding and the like. Further, the term "joining" as used herein includes pressure welding, welding, brazing, and the like.
【０００９】[0009]
【作用】この発明に係る接合構造及び接合方法では、銅
材に形成された複数の突片の端部にアルミニウム接続材
が順次圧接される。一回の圧接に要する電流又は圧力
は、全体の接合面積で決まるのではなく、一回の圧接に
おける突片の端部とアルミニウム接続材との接合面積で
決まる。したがって、全体の接合面積が大きくても、全
体の接合面積が複数に分割されるので、一回の圧接に要
する電流又は圧力は小さくなる。また、アルミニウム接
続材とアルミニウム材とは、同種金属、低融点、柔らか
い等の条件により、簡単な設備で容易に接合が得られ
る。In the joining structure and the joining method according to the present invention, an aluminum connecting member is sequentially pressed into contact with ends of a plurality of protruding pieces formed on a copper material. The current or pressure required for one press contact is not determined by the entire joint area, but by the joint area between the end of the projecting piece and the aluminum connecting member in one press contact. Therefore, even if the entire joint area is large, the entire joint area is divided into a plurality of parts, so that the current or pressure required for one press contact is small. Further, the aluminum connection material and the aluminum material can be easily joined with simple equipment under conditions such as the same kind of metal, low melting point, and softness.
【００１０】[0010]
【実施例】図１はこの発明に係る接合構造の一実施例を
示す斜視図、図２乃至図４はこの発明に係る接合方法の
一実施例を示す斜視図である。FIG. 1 is a perspective view showing one embodiment of a joining structure according to the present invention, and FIGS. 2 to 4 are perspective views showing one embodiment of a joining method according to the present invention.
【００１１】この発明に係る接合構造は、突片１０ａ、
１０ｂ、１０ｃを有する銅材１２と、突片１０ａ、１０
ｂ、１０ｃの端部１４ａ、１４ｂ、１４ｃに一端１６
ａ、１６ｂ、１６ｃが圧接されたアルミニウム接続材１
８ａ、１８ｂ、１８ｃと、アルミニウム接続材１８ａ、
１８ｂ、１８ｃの他端２０ａ、２０ｂ、２０ｃが接合さ
れたアルミニウム材２２とからなるものである。[0011] The joint structure according to the present invention comprises a projecting piece 10a,
Copper material 12 having 10b and 10c, and protruding pieces 10a and 10c
b, one end 16 at end 14a, 14b, 14c of 10c
a, 16b, and 16c are pressed against each other by aluminum connecting material 1
8a, 18b, 18c and aluminum connecting material 18a,
The other end 20a, 20b, 20c of 18b, 18c is made of an aluminum material 22 joined thereto.
【００１２】また、突片１０ａ、１０ｂ間には切り込み
部２４ｄが、突片１０ｂ、１０ｃ間には切り込み部２４
ｅがそれぞれ形成されている。さらに、アルミニウム材
２２には、銅材１２と同じように、突片２６ａ、２６
ｂ、２６ｃと切り込み部２８ｄ、２８ｅとを形成するこ
とができる。A notch 24d is provided between the protruding pieces 10a and 10b, and a notch 24d is provided between the protruding pieces 10b and 10c.
e are formed respectively. Furthermore, similarly to the copper material 12, the protrusions 26a, 26a
b, 26c and cut portions 28d, 28e can be formed.
【００１３】突片１０ａ、１０ｂ、１０ｃと切り込み部
２４ｄ、２４ｅとからなる構造は、圧接に関係のない部
分を切り欠いているので、圧接時の電流、熱、圧力等
が、アルミニウム接続材１８ａ、１８ｂ、１８ｃとの接
合面３０ａ、３０ｂ、３０ｃに集中する作用をする。The structure composed of the protruding pieces 10a, 10b, 10c and the cutouts 24d, 24e has cut-out portions that are not related to the pressure welding, so that the current, heat, pressure and the like during the pressure welding are reduced by the aluminum connecting material 18a. , 18b, 18c.
【００１４】次に、この発明に係る接合方法について説
明する。Next, a joining method according to the present invention will be described.
【００１５】まず、銅材１２の突片１０ａの端部１４ａ
にアルミニウム接続材１８ａの一端１６ａを圧接する。
圧接方法としては、例えば、通電加熱圧接の後に冷間圧
接を行う。通電加熱圧接は、突片１０ａの端部１４ａと
アルミニウム接続材１８ａの一端１６ａを1.0kg/mm2 の
圧力で突き合わせて、50Ａ/mm2の電流で通電加熱をす
る。そして、銅材１２の端部１４ａとアルミニウム接続
材１８ａの一端１６ａとが、溶融し始めるとさらに30kg
/mm2の圧力で加圧して終了する。冷間圧接は、通電加熱
圧接により圧接された銅材１２の端部１４ａとアルミニ
ウム接続材１８ａの一端１６ａとを、さらに230kg/mm2
の圧力で加圧する。このとき、接合面３０ａに残ってい
る銅とアルミニウムとの合金層を完全に押し出す（図２
及び図３）。なお、上記の圧力、電流の数値は全て一例
である。First, the end 14a of the protruding piece 10a of the copper material 12
The one end 16a of the aluminum connecting member 18a is pressed against this.
As the pressure welding method, for example, cold pressure welding is performed after energization heating pressure welding. In the heating and pressure welding, the end portion 14a of the protruding piece 10a and the one end 16a of the aluminum connecting member 18a are butted at a pressure of 1.0 kg / mm 2 , and heated by a current of 50 A / mm 2 . When the end 14a of the copper material 12 and the one end 16a of the aluminum connecting material 18a start melting, another 30 kg is applied.
Pressurize with a pressure of / mm 2 and finish. In the cold pressure welding, the end portion 14a of the copper material 12 and the one end 16a of the aluminum connecting material 18a pressed by the electric heating pressure welding are further connected to each other by 230 kg / mm 2.
Pressurize with pressure. At this time, the alloy layer of copper and aluminum remaining on the joint surface 30a is completely extruded (FIG. 2).
And FIG. 3). The above pressure and current values are all examples.
【００１６】同様にして、銅材１２の突片１０ｂ、１０
ｃの端部１４ｂ、１４ｃにアルミニウム接続材１８ｂ、
１８ｃの一端１６ｂ、１６ｃを順次圧接する（図４）。Similarly, projecting pieces 10b, 10
c at the ends 14b, 14c of the aluminum connection member 18b,
One end 16b, 16c of 18c is pressed in sequence (FIG. 4).
【００１７】圧接時の電流又は圧力は接合面積に比例す
る。しかし、この実施例では、全体の接合面積が三つに
分割されるているので、一回の圧接に要する電流又は圧
力は全体の接合面積を一回で圧接する従来の方法に比べ
て三分の一でよい。The current or pressure at the time of pressure welding is proportional to the bonding area. However, in this embodiment, since the entire joint area is divided into three, the current or pressure required for one press contact is three minutes less than the conventional method in which the entire joint area is press contacted at one time. One is fine.
【００１８】最後に、アルミニウム接続材１８ａ、１８
ｂ、１８ｃの他端２０ａ、２０ｂ、２０ｃとアルミニウ
ム材２２とを接合して、図１に示すような接合構造が完
成する。この場合の接合は、同種金属、低融点、柔らか
い等の条件により、簡単な設備で容易に接合が得られ
る。接合方法の例として、通電加熱圧接、冷間圧接、ア
ルミニウム合金によるろう付けなどが好適に用いられ
る。Finally, the aluminum connecting members 18a, 18
The other ends 20a, 20b, 20c of the b, 18c and the aluminum material 22 are joined to complete a joint structure as shown in FIG. In this case, the joining can be easily achieved with simple equipment under the conditions of the same kind of metal, low melting point, softness and the like. As examples of the joining method, electric heating and pressure welding, cold pressure welding, brazing with an aluminum alloy, and the like are suitably used.
【００１９】[0019]
【発明の効果】本発明に係る接合構造及び接合方法によ
れば、アルミニウム材と銅材との接合面積を複数に分割
することにより、一回の圧接に要する電流又を圧力は小
さくできる。したがって、大きい接合面積を有するアル
ミニウム材と銅材との接合を小規模な設備でも行うこと
ができる。According to the joining structure and the joining method according to the present invention, by dividing the joining area between the aluminum material and the copper material into a plurality, the current or pressure required for one press contact can be reduced. Therefore, the joining of the aluminum material and the copper material having a large joining area can be performed with a small-scale facility.
【図１】この発明に係る接合構造の一実施例を示す斜視
図。FIG. 1 is a perspective view showing one embodiment of a joining structure according to the present invention.
【図２】この発明に係る接合方法の一実施例を示す斜視
図。FIG. 2 is a perspective view showing one embodiment of a joining method according to the present invention.
【図３】この発明に係る接合方法の一実施例を示す斜視
図。FIG. 3 is a perspective view showing one embodiment of a joining method according to the present invention.
【図４】この発明に係る接合方法の一実施例を示す斜視
図。FIG. 4 is a perspective view showing one embodiment of a joining method according to the present invention.
１０ａ、１０ｂ、１０ｃ…銅材の突片 １２…銅材 １４ａ、１４ｂ、１４ｃ…銅材の突片の端部 １６ａ、１６ｂ、１６ｃ…アルミニウム接続材の一端 １８ａ、１８ｂ、１８ｃ…アルミニウム接続材 ２０ａ、２０ｂ、２０ｃ…アルミニウム接続材の他端 ２２…アルミニウム材 10a, 10b, 10c: Copper material protrusion 12: Copper material 14a, 14b, 14c: End of copper material protrusion 16a, 16b, 16c: One end of aluminum connection material 18a, 18b, 18c: Aluminum connection material 20a , 20b, 20c: the other end of the aluminum connecting material 22: aluminum material
Claims (2)
銅材と、上記突片の端部に一端が圧接された複数のアル
ミニウム接続材と、これらのアルミニウム接続材の他端
が接合されたアルミニウム材とからなるアルミニウム材
と銅材との接合構造。1. A copper material having a joint surface divided by a plurality of protruding pieces, a plurality of aluminum connecting materials having one ends press-contacted to ends of the protruding pieces, and the other ends of the aluminum connecting materials joined together. Joint structure between aluminum and copper, made of wrought aluminum.
アルミニウム接続材の一端を順次圧接し、これらのアル
ミニウム接続材の他端をアルミニウム材に接合するアル
ミニウム材と銅材との接合方法。2. An aluminum material and a copper material in which one end of an aluminum connecting material is sequentially pressed against each end of a plurality of protruding pieces formed on a copper material, and the other end of the aluminum connecting material is joined to the aluminum material. Joining method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3005165A JP2902131B2 (en) | 1991-01-21 | 1991-01-21 | Joint structure and joining method between aluminum material and copper material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3005165A JP2902131B2 (en) | 1991-01-21 | 1991-01-21 | Joint structure and joining method between aluminum material and copper material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04270078A JPH04270078A (en) | 1992-09-25 |
| JP2902131B2 true JP2902131B2 (en) | 1999-06-07 |
Family
ID=11603626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3005165A Expired - Lifetime JP2902131B2 (en) | 1991-01-21 | 1991-01-21 | Joint structure and joining method between aluminum material and copper material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2902131B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2254349C (en) | 1997-11-19 | 2003-11-04 | Kabushiki Kaisha Toshiba | Joined structure of dissimilar metallic materials |
-
1991
- 1991-01-21 JP JP3005165A patent/JP2902131B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04270078A (en) | 1992-09-25 |
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