JP3316343B2 - How to join small metal parts - Google Patents
How to join small metal partsInfo
- Publication number
- JP3316343B2 JP3316343B2 JP18266495A JP18266495A JP3316343B2 JP 3316343 B2 JP3316343 B2 JP 3316343B2 JP 18266495 A JP18266495 A JP 18266495A JP 18266495 A JP18266495 A JP 18266495A JP 3316343 B2 JP3316343 B2 JP 3316343B2
- Authority
- JP
- Japan
- Prior art keywords
- boss
- joining
- metal part
- small metal
- metal parts
- 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 - Fee Related
Links
Landscapes
- Automatic Assembly (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属部品にボス等
を接合する場合に適用される金属小部品の接合方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining small metal parts, which is applied when a boss or the like is joined to a metal part.
【０００２】[0002]
【従来の技術】従来の金属部品へのボスの接合において
は、図３に示すように金属部品０１の穴にボス０２をは
め込み、ボス０２がはめ込まれた金属部品０１のはめ込
み部を溶接０４により接合していた。2. Description of the Related Art In joining a boss to a conventional metal component, as shown in FIG. 3, a boss 02 is fitted into a hole of the metal component 01, and a fitting portion of the metal component 01 in which the boss 02 is fitted is welded 04. Had joined.
【０００３】[0003]
【発明が解決しようとする課題】従来の金属部品へのボ
スの接合方法においては、前記のように金属部品の穴に
ボスを入れ、はめ込み部を溶接により接合していた。こ
のように溶接によりボス等を接合する場合、接合部を溶
融させるため、接合部の凝固収縮が大きく接合部に変形
が生じたり、クラックが発生したりすることがあり、ま
た、溶接部が鋳造組織となるため、均質化のための熱処
理が必要であった。In the conventional method of joining a boss to a metal part, the boss is inserted into the hole of the metal part as described above, and the fitting portion is joined by welding. When joining bosses and the like by welding in this way, the joint is melted, so the solidification shrinkage of the joint is large and the joint may be deformed or cracked, and the weld may be cast. Heat treatment for homogenization was required to form a structure.
【０００４】本発明は、上記課題を解決しようとするも
のであり、材料を溶融させることなくボスを接合させ、
変形及びクラックの発生をなくし、かつ均質化のための
熱処理を必要としない接合方法を提供することを目的と
する。[0004] The present invention is intended to solve the above-mentioned problems, and is intended to join bosses without melting the material.
An object of the present invention is to provide a joining method that eliminates deformation and cracks and does not require heat treatment for homogenization.
【０００５】[0005]
【課題を解決するための手段】請求項１に記載の発明
は、金属部品に取付ける金属小部品の接合方法におい
て、金属部品に穴を設け、この穴に端部に突起を有する
金属小部品を圧入した後、金属小部品を加熱しながら加
圧して金属小部品の突起を押しつぶし、金属部品と金属
小部品の接合面を拡散接合させることを特徴としてい
る。According to a first aspect of the present invention, there is provided a method for joining a small metal part to be attached to a metal part, the method comprising: forming a hole in the metal part; After the press-fitting, the small metal parts are pressurized while being heated, and the projections of the small metal parts are crushed, and the joining surface between the metal parts and the small metal parts is diffusion-bonded.
【０００６】上記において、金属小部品を加熱するとそ
の熱は金属小部品の金属部品との接合面に伝達され、こ
の接合面は所定の温度となる。金属小部品を加熱する
と、金属小部品は熱膨張するために圧力を発生するが、
この圧力は金属小部品を押しつぶしながら行う金属小部
品の加圧による圧力とともに上記接合面に伝達され、こ
の接合面を所定の圧力で加圧する。[0006] In the above, when the small metal part is heated, the heat is transferred to the joint surface of the small metal part and the metal part, and this joint surface is brought to a predetermined temperature. When heating a small metal part, the small metal part generates pressure due to thermal expansion,
This pressure is transmitted to the joint surface together with the pressure generated by pressing the small metal part while crushing the small metal part, and pressurizes the joint surface with a predetermined pressure.
【０００７】そのため、金属部品と金属小部品が接する
接合面は、拡散接合に必要な所定の温度まで上昇し、ま
た、所定の圧力が加えられるため、良好な拡散接合が行
われる。[0007] Therefore, the junction surface where the metal component and the small metal component are in contact with each other rises to a predetermined temperature required for diffusion bonding and a predetermined pressure is applied, so that good diffusion bonding is performed.
【０００８】[0008]
【発明の実施の形態】本発明の実施の第１形態に係るボ
スの接合方法について、図１により説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A boss joining method according to a first embodiment of the present invention will be described with reference to FIG.
【０００９】図１に示す本実施形態に係るボスの接合方
法においては、まず、金属部品１に穴を形成し、その穴
に突起３を有するボス２を圧入してワークを形成した
後、図１（ａ）に示すようにこのワークを受け台７に乗
せ、加熱コイル５をボス２にセットし、プレス６をボス
２の突起３に当てる。その後、加熱コイル５によりボス
２を急速加熱しながらプレス６で突起３を押しつぶし、
金属部品１とボス２を拡散接合し、図１（ｂ）に示すよ
うに金属部品１とボス２との接合面４を一体化する。In the method of joining bosses according to the present embodiment shown in FIG. 1, first, a hole is formed in a metal part 1, and a boss 2 having a projection 3 is pressed into the hole to form a workpiece. As shown in FIG. 1A, the work is placed on a receiving table 7, the heating coil 5 is set on the boss 2, and the press 6 is applied to the projection 3 of the boss 2. Thereafter, the boss 2 is crushed by the press 6 while rapidly heating the boss 2 by the heating coil 5,
The metal component 1 and the boss 2 are diffusion bonded, and the bonding surface 4 between the metal component 1 and the boss 2 is integrated as shown in FIG.
【００１０】上記において、加熱コイル５でボス２を急
速加熱しながらプレスで加圧すると、加熱コイル５によ
りボス２に発生した熱がボス２と金属部品１との接合面
４に伝達され、この接合面４が所定の温度となる。In the above, when the boss 2 is pressurized by the press while the boss 2 is rapidly heated by the heating coil 5, the heat generated in the boss 2 by the heating coil 5 is transmitted to the joint surface 4 between the boss 2 and the metal component 1. The joining surface 4 has a predetermined temperature.
【００１１】また、上記プレス６で突起３を押しつぶす
ことによって発生したボス２の半径方向の圧力には、上
記ボス２の加熱により生じた熱膨張による圧力が加わ
り、これらの合計された圧力が上記接合面４に加えられ
る。Further, the pressure in the radial direction of the boss 2 generated by crushing the projection 3 by the press 6 is applied with the pressure due to the thermal expansion generated by heating the boss 2, and the sum of these pressures is Applied to the joining surface 4.
【００１２】そのため、金属部品１とボス２の接合面４
には、拡散接合に必要な温度と圧力が与えられることと
なるため、金属部品１とボス２の接合面４は、拡散接合
する。Therefore, the joining surface 4 of the metal part 1 and the boss 2
Is subjected to a temperature and a pressure necessary for diffusion bonding, so that the bonding surface 4 between the metal component 1 and the boss 2 is diffusion bonded.
【００１３】次に、本発明の実施の第２形態に係るパッ
チの接合方法について、図２により説明する。なお、本
実施形態は、航空機エンジン部品１１に発生したひび割
れ（クラック）の補修に適用されたものである。Next, a method of joining patches according to a second embodiment of the present invention will be described with reference to FIG. The present embodiment is applied to repair of cracks (cracks) generated in the aircraft engine parts 11.
【００１４】図２に示す本実施形態に係るパッチ８の接
合方法においては、上記エンジン部品１１のクラック発
生部分を円形等に削り取って穴を形成した後、第１実施
形態と同様に、この穴にパッチ８を圧入し、接合面９を
拡散接合をしており、良好な接合結果を得ている。In the joining method of the patch 8 according to the present embodiment shown in FIG. 2, the cracked portion of the engine part 11 is cut into a circle or the like to form a hole, and then the hole is formed as in the first embodiment. The patch 8 is press-fitted into the bonding surface and the bonding surface 9 is diffusion-bonded, and a good bonding result is obtained.
【００１５】[0015]
【実施例】前記第１実施形態に係るボスの接合方法の具
体的な実施例について、以下に説明する。EXAMPLES Specific examples of the boss bonding method according to the first embodiment will be described below.
【００１６】ボスは、その材質がＳＵＳ３０４で、外径
が４０．０+0.05 -0mm、接合部の板厚が５．５mmであっ
た。また、このボスが接合される金属部品は、その材質
がＳＵＳ３０４で、穴径が４０．０+0 -0.05 mm、接合部
の板厚が５．０mmであった。[0016] boss in the material is SUS304, outer diameter 40.0 +0.05 -0 mm, thickness of the bonding portion was 5.5 mm. The metal part to which this boss was joined was made of SUS304, had a hole diameter of 40.0 + 0-0.05 mm, and had a joint thickness of 5.0 mm.
【００１７】上記ボスを金属部品の穴に圧入し、加熱コ
イルによりボスを９５０℃に加熱し、プレスにより５０
０kgの圧力で加圧したところ、良好な拡散接合結果を得
ることができた。The boss is pressed into a hole of a metal part, the boss is heated to 950 ° C. by a heating coil, and the boss is
When pressure was applied at a pressure of 0 kg, good diffusion bonding results could be obtained.
【００１８】[0018]
【発明の効果】本発明の金属小部品の接合方法において
は、金属小部品が接合される金属部品に穴を設け、この
穴に金属小部品を圧入した後、金属小部品を加熱しなが
ら加圧して金属小部品に設けられた突起を押しつぶし、
金属部品と金属小部品の接合面を拡散接合させることに
よって、接合部が拡散接合により一体接合されるため、
接合部の金属組織が溶接に較べて良好となり、均質化の
ための熱処理が不要となる。また、その近傍に変形がな
く、クラックが発生しない接合部を得ることができる。According to the method for joining small metal parts of the present invention, a hole is formed in the metal part to which the small metal part is joined, and after the small metal part is pressed into the hole, the metal small part is heated while being heated. Pressure to crush the protrusions on the small metal parts,
By joining the joining surface of metal parts and small metal parts by diffusion joining, the joining part is integrally joined by diffusion joining,
The metal structure of the joint is better than that of welding, and heat treatment for homogenization is not required. In addition, it is possible to obtain a joint portion that is not deformed in the vicinity thereof and is free from cracks.
【図１】本発明の実施の第１形態に係るボスの接合方法
の説明図で、（ａ）はボス接合前、（ｂ）はボス接合後
の断面図である。FIGS. 1A and 1B are explanatory views of a boss joining method according to a first embodiment of the present invention, wherein FIG. 1A is a sectional view before boss joining and FIG.
【図２】本発明の実施の第２形態に係るパッチの接合方
法の説明図で、（ａ）はパッチ接合前、（ｂ）はパッチ
接合後の断面図である。FIGS. 2A and 2B are explanatory diagrams of a patch joining method according to a second embodiment of the present invention, wherein FIG. 2A is a cross-sectional view before patch joining and FIG.
【図３】従来のボス接合方法の説明図である。FIG. 3 is an explanatory view of a conventional boss bonding method.
１ 金属部品 ２ ボス ３ 突起 ４ 接合面 ５ 加熱コイル ６ プレス ７ 受け台 ８ パッチ ９ 接合面 １１ エンジン部品 DESCRIPTION OF SYMBOLS 1 Metal part 2 Boss 3 Projection 4 Joining surface 5 Heating coil 6 Press 7 Cradle 8 Patch 9 Joining surface 11 Engine parts
Claims (1)
法において、金属部品に穴を設け、この穴に端部に突起
を有する金属小部品を圧入した後、金属小部品を加熱し
ながら加圧して金属小部品の突起を押しつぶし、金属部
品と金属小部品の接合面を拡散接合させることを特徴と
する金属小部品の接合方法。In a method for joining a small metal part to be attached to a metal part, a hole is formed in the metal part, a small metal part having a projection at an end is press-fitted into the hole, and then the small metal part is pressurized while being heated. A method of joining small metal parts, comprising: squeezing a projection of the small metal part to diffuse and join a joining surface between the metal part and the small metal part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18266495A JP3316343B2 (en) | 1995-07-19 | 1995-07-19 | How to join small metal parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18266495A JP3316343B2 (en) | 1995-07-19 | 1995-07-19 | How to join small metal parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0929461A JPH0929461A (en) | 1997-02-04 |
| JP3316343B2 true JP3316343B2 (en) | 2002-08-19 |
Family
ID=16122282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18266495A Expired - Fee Related JP3316343B2 (en) | 1995-07-19 | 1995-07-19 | How to join small metal parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3316343B2 (en) |
-
1995
- 1995-07-19 JP JP18266495A patent/JP3316343B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0929461A (en) | 1997-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020507 |
|
| LAPS | Cancellation because of no payment of annual fees |