JP2717440B2 - Plastic joining method - Google Patents
Plastic joining methodInfo
- Publication number
- JP2717440B2 JP2717440B2 JP8723289A JP8723289A JP2717440B2 JP 2717440 B2 JP2717440 B2 JP 2717440B2 JP 8723289 A JP8723289 A JP 8723289A JP 8723289 A JP8723289 A JP 8723289A JP 2717440 B2 JP2717440 B2 JP 2717440B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- filler
- members
- hollow portion
- coupling
- 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
- Forging (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、加圧により、二以上の部材のうちの少なく
とも一つの部材を塑性変形させて、互いに結合する塑性
結合方法に関するものであり、さらに詳細には、加圧部
に中空部または凹部を有する一または二以上の部材を塑
性変形させて、他の一または二以上の部材と塑性結合す
ることを可能とした塑性結合方法に関するものである。Description: FIELD OF THE INVENTION The present invention relates to a plastic coupling method of plastically deforming at least one of two or more members by applying pressure and coupling them together. The present invention relates to a plastic coupling method that enables one or two or more members having a hollow portion or a concave portion in a pressing portion to be plastically deformed and plastically coupled to another one or two or more members.
先行技術 塑性結合方法は、結合すべき二以上の部材の少なくと
も一つの部材の結合面に溝などの凹部（本明細書におい
ては、「結合凹部」という。）を形成するとともに、他
方の部材を加圧することにより、塑性変形を生じさせ
て、前記結合面に形成された凹部内に塑性流動により押
し込み、二以上の部材を結合する方法であり、二以上の
部材の結合方法として広く用いられている（たとえば、
特開昭61−42445号公報など。）。2. Description of the Related Art A plastic joining method forms a recess such as a groove (referred to as a “joining recess” in the present specification) on a joining surface of at least one of two or more members to be joined, and attaches the other member. By applying pressure, a plastic deformation is caused, and the plastic deformation is pushed into the concave portion formed in the coupling surface by plastic flow, and is a method of coupling two or more members, and is widely used as a coupling method of two or more members. (For example,
JP-A-61-42445 and the like. ).
発明が解決しようとする問題点 しかしながら、加圧により塑性変形を生じさせる部材
に、中空部または凹部（本明細書においては、「中空
部」という。）が存在する場合には、塑性結合のための
加圧によって、その中空部が押し潰されて、変形してし
まい、加圧により、他方の部材に設けられた結合凹部内
に、結合すべき部材の一部を塑性流動により押し込むこ
とができず、塑性結合をおこなうことが不可能であると
ともに、部材自体が変形を生じてしまうという問題があ
った。Problems to be Solved by the Invention However, when a member that causes plastic deformation by pressurization has a hollow portion or a concave portion (referred to as a “hollow portion” in this specification), the member is plastically bonded. Due to the pressurization, the hollow portion is crushed and deformed, and by the pressurization, a part of the member to be coupled can be pushed into the coupling concave portion provided in the other member by plastic flow. However, there is a problem that it is impossible to perform plastic coupling and the member itself is deformed.
発明の目的 本発明は、塑性結合のために圧力を加える加圧部に、
中空部を有する一または二以上の部材を塑性変形させ
て、他の一または二以上の部材と塑性結合することを可
能とした塑性結合方法を提供することを目的とするもの
である。Object of the Invention The present invention provides a pressurizing unit for applying pressure for plastic bonding,
It is an object of the present invention to provide a plastic coupling method that enables one or more members having a hollow portion to be plastically deformed and plastically coupled to another one or more members.
発明の構成 本発明のかかる目的は、塑性結合すべき二以上の部材
の少なくとも一つの部材の結合面に結合凹部を形成し、
少なくとも一つの他方の部材の中空部内の少なくとも加
圧部およびその近傍に消失可能で、圧縮強度が高く、か
つ、弾性係数の小さい充填材を充填し、前記他方の部材
の結合面近傍を加圧することにより、塑性変形を生じさ
せ、塑性流動によって、前記他方の部材の一部を前記結
合凹部内に押し込み、二以上の部材を塑性結合し、しか
る後に、前記充填材を除去することによって達成され
る。The object of the present invention is to form a coupling recess in a coupling surface of at least one member of two or more members to be plastically coupled,
At least one pressurized portion in the hollow portion of the other member and the vicinity thereof can be eliminated, and a filler having a high compressive strength and a low elastic modulus is filled, and a portion near the joint surface of the other member is pressurized. This is achieved by causing plastic deformation, by plastic flow, pushing a part of the other member into the coupling recess, plastically coupling two or more members, and then removing the filler. You.
本発明によれば、加圧により塑性変形すべき他方の部
材の中空部の少なくとも加圧部およびその近傍には、圧
縮強度が高く、かつ、弾性係数の小さい充填材が充填さ
れているので、加圧により、中空部が押し潰されること
も、また、部材自体が変形することもなく、二以上の部
材を塑性結合することが可能になり、しかも、中空部に
充填される充填材は消失可能な性質を有しているから、
塑性結合がなされた後、これを消失させることができる
から、中空部が再生され、したがって、塑性結合のため
に圧力を加える加圧部に、中空部を有する一または二以
上の部材を塑性変形させて、他の一または二以上の部材
と塑性結合することが可能となる。According to the present invention, at least the pressurized portion and its vicinity of the hollow portion of the other member to be plastically deformed by pressurization are filled with a filler having a high compressive strength and a small elastic modulus, By pressing, the hollow portion is not crushed and the member itself is not deformed, and it is possible to plastically couple two or more members, and the filler filling the hollow portion disappears Because it has possible properties,
After the plastic connection has been made, this can be eliminated, so that the hollow part is regenerated.Therefore, one or more members having the hollow part are plastically deformed in the pressurizing part for applying pressure for the plastic connection. Thus, it is possible to plastically couple with one or more other members.
本発明において、中空部に充填する充填材としては、
圧縮強度が高く、弾性係数が小さい材料であることが必
要である。ここに、圧縮強度が高いとは、塑性結合に要
求される加圧力により、破壊されることがない程度の圧
縮強度を有していることを意味し、また、弾性係数が小
さいとは、塑性結合に要求される加圧力による変形が無
視し得る程度であることを意味し、その程度は、塑性結
合により得られる製品により決定され、必ずしも一義的
に決定されるものではい。In the present invention, as the filler to fill the hollow portion,
It is necessary that the material has a high compressive strength and a low elastic modulus. Here, a high compressive strength means having a compressive strength that does not cause breakage due to a pressing force required for plastic bonding. It means that the deformation due to the pressing force required for the connection is negligible, and the degree is determined by the product obtained by the plastic connection and is not necessarily determined uniquely.
また、本発明において、中空部に充填する充填材とし
ては、塑性結合の後に、消失可能なものであることが必
要であり、水もしくは有機溶媒などの溶剤により溶解し
て消失可能な材料、または、加熱などにより消失可能な
材料であることが望ましい。Further, in the present invention, as the filler to be filled into the hollow portion, after plastic bonding, it is necessary that the filler can be eliminated, a material that can be dissolved and eliminated by a solvent such as water or an organic solvent, or It is desirable that the material can be eliminated by heating or the like.
圧縮強度が高く、弾性係数が小さく、かつ、水により
溶解して消失可能な充填材としては、たとえば、鋳造の
分野で用いられている、海水を蒸発させた後、これを焼
き、圧粉成形して得た塩中子などの鋳造中子などが好ま
しく使用でき、有機溶媒により溶解して消失可能な充填
材としては、たとえば、ABS樹脂、ポリ塩化ビニル樹
脂、ポリスチレン樹脂などのプラスチックが好ましく使
用でき、また、加熱により消失可能な充填材としては、
たとえば、カーボンや前記プラスチックなどが好ましく
使用し得る。As a filler having a high compressive strength, a small elastic modulus, and dissolvable by dissolving with water, for example, after evaporating seawater, which is used in the field of casting, it is baked and compacted. Casting cores such as salt cores obtained by the above can be preferably used, and as a filler that can be dissolved and eliminated by an organic solvent, for example, plastics such as ABS resin, polyvinyl chloride resin, and polystyrene resin are preferably used. Fillers that can be removed by heating
For example, carbon and the plastics described above can be preferably used.
本発明において、充填材は、少なくとも、中空部の塑
性結合するための加圧部およびその近傍に充填すること
が必要であるが、これらの部分に充填されれば、さらに
広い領域、たとえば、中空部全体に充填するようにして
もよい。ここに、加圧部およびその近傍とは、充填材の
充填により、塑性結合に要求される加圧力による変形が
無視し得る程度になる範囲を意味し、その範囲は、塑性
結合により得られる製品により決定され、必ずしも一義
的に決定されるものではい。In the present invention, at least the filler is required to be filled in the pressurized portion for plastic coupling of the hollow portion and its vicinity, but if these portions are filled, a wider area, for example, hollow The entire part may be filled. Here, the pressurized portion and its vicinity means a range in which the deformation due to the pressing force required for the plastic coupling due to the filling of the filler is negligible, and the range is a product obtained by the plastic coupling. And is not necessarily uniquely determined.
実施例 以下、添付図面に基づいて、本発明の実施例につき、
詳細に説明を加える。Examples Hereinafter, based on the accompanying drawings, an embodiment of the present invention will be described.
Add a detailed explanation.
第１図は、塑性結合すべき２つの部材の結合部分の要
部を示す拡大略断面図であり、また、第２図は、塑性結
合後の２つの部材の結合部分の要部を示す拡大略断面図
である。FIG. 1 is an enlarged schematic cross-sectional view showing a main part of a connecting part of two members to be plastically connected, and FIG. 2 is an enlarged view showing a main part of a connecting part of the two members after plastic connecting. It is a schematic sectional drawing.
第１図において、第１部材１は、環状をなし、第２部
材２は、第１部材１の外周面の全周にわたり結合される
もので、第１図においては、これらの結合部分の要部が
示されている。第１部材１および第２部材２は、それぞ
れの周面において、突き合わされており、第１部材１の
外周面には、複数の結合凹部３がローレット加工などに
より環状に設けられ、他方、第２部材２の内周面には、
通路を構成する中空部４が切削加工により設けられてい
る。中空部４の一端は、第１部材１内に設けられた通路
５と連通し、他端は、図示されていないが、開放されて
いる。第１図および第２図において、矢印Ａは、塑性結
合のために、加圧部６に圧力を加える向きを示してい
る。第１図において、中空部４の加圧部６およびその近
傍には、海水を蒸発させた後、これを焼き、２〜４トン
／cm2で圧粉成形して生成した、一般に鋳造時に塩中子
として用いられる圧縮強度が高く、弾性係数の小さい充
填材７が圧入されている。In FIG. 1, the first member 1 is formed in an annular shape, and the second member 2 is joined over the entire outer peripheral surface of the first member 1. In FIG. The parts are shown. The first member 1 and the second member 2 are abutted on their respective peripheral surfaces, and a plurality of coupling recesses 3 are provided on the outer peripheral surface of the first member 1 in an annular shape by knurling or the like. On the inner peripheral surface of the two members 2,
The hollow portion 4 constituting the passage is provided by cutting. One end of the hollow portion 4 communicates with a passage 5 provided in the first member 1, and the other end is open, not shown. 1 and 2, the arrow A indicates the direction in which pressure is applied to the pressing unit 6 for plastic coupling. In FIG. 1, seawater is evaporated and then baked and pressed into a powder at 2 to 4 ton / cm 2 to form a pressurized portion 6 in the hollow portion 4 and its vicinity. A filler 7 having a high compressive strength and a small elastic modulus used as a core is press-fitted.
第２図には、第２部材２の加圧部６に圧力が加えられ
て、塑性結合が完了した状態が示されており、第２部材
２は、塑性変形し、その一部は塑性流動により、第１部
材１の結合凹部３内に侵入して、第１部材１と第２部材
２とは、強固に結合されている。しかし、中空部４の加
圧部６およびその近傍には、圧縮強度が高く、弾性係数
の小さい塩中子よりなる充填材７が充填されているた
め、加圧部６に圧力が加えられたにもかかわらず、無視
し得る程度にしか変形せず、中空部４は、第１図におけ
るのと、実質的に同一の形状を保っている。FIG. 2 shows a state in which a pressure is applied to the pressurizing portion 6 of the second member 2 to complete the plastic coupling. The second member 2 undergoes plastic deformation, and a part of the second member 2 undergoes plastic flow. Accordingly, the first member 1 and the second member 2 are firmly connected to each other by penetrating into the connecting recess 3 of the first member 1. However, pressure is applied to the pressurizing portion 6 because the pressurizing portion 6 of the hollow portion 4 and the vicinity thereof are filled with the filler 7 made of a salt core having a high compressive strength and a small elastic coefficient. Nevertheless, it is deformed only to a negligible extent, and the hollow part 4 has substantially the same shape as in FIG.
こうして、塑性結合が完了すると、第２部材２の中空
部４の図示しない開放端部より、水が注入される。その
結果、充填材７である塩中子は、水に溶解する性質を有
しているから、水溶液となって、第２部材２の中空部４
の図示しない開放端部から、中空部４外に取り出され、
中空部４より消失し、所望の正常、寸法の中空部４を有
する第２部材２と第１部材１とが、強固に塑性結合され
た製品が得られる。When the plastic coupling is completed in this way, water is injected from the open end (not shown) of the hollow portion 4 of the second member 2. As a result, the salt core, which is the filler 7, has the property of dissolving in water, so that it becomes an aqueous solution and the hollow portion 4 of the second member 2
Is taken out of the hollow portion 4 from an open end (not shown) of
A product is obtained in which the second member 2 and the first member 1 that have disappeared from the hollow portion 4 and have the desired normal and dimensional hollow portion 4 are firmly and plastically connected.
本発明は、以上の実施例に限定されることなく特許請
求の範囲に記載された発明の範囲内で種々の変更が可能
であり、それらも本発明の範囲内に包含されるものであ
ることはいうまでもない。The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention described in the claims, which are also included in the scope of the present invention. Needless to say.
たとえば、前記実施例においては、第２部材２の中空
部４を切削加工により形成し、こうして形成された中空
部４に、塩中子よりなる充填材７を圧入しているが、第
２部材２が、鋳造により製造されるものである場合に
は、中子として塩中子を用いて、第２部材２を鋳造によ
って製造し、その塩中子をそのまま充填材７として使用
し、塑性結合をすることもできる。For example, in the above embodiment, the hollow portion 4 of the second member 2 is formed by cutting, and the filler 7 made of a salt core is press-fitted into the hollow portion 4 thus formed. In the case where 2 is manufactured by casting, the second member 2 is manufactured by casting using a salt core as a core, and the salt core is used as it is as a filler 7, and plastic bonding is performed. You can also
また、前記実施例においては、充填材７として、塩中
子を用いているが、塩中子の代わりに、有機溶媒に可溶
のABS樹脂、ポリ塩化ビニル樹脂、ポリスチレン樹脂な
どのプラスチックやカーボンなどを用い、成形して、中
空部４内に挿入するようにしてもよい。これらのプラス
チックを用いたときは、塑性結合後、ケトンなどの有機
溶媒を用いて、溶解消失させることも、また、融点以上
に加熱して、溶融消失させることもできる。さらには、
充填材として、カーボンを用いたときは、塑性結合後、
融点以上に加熱して、溶融消失させることができる。Further, in the above embodiment, the salt core is used as the filler 7, but instead of the salt core, plastics such as ABS resin, polyvinyl chloride resin, polystyrene resin, etc. For example, it may be molded and inserted into the hollow portion 4. When these plastics are used, they can be dissolved and eliminated using an organic solvent such as ketone after plastic bonding, or can be melted and eliminated by heating to above the melting point. Moreover,
When carbon is used as the filler, after plastic bonding,
Heating above the melting point can cause melting and disappearance.
発明の効果 本発明によれば、塑性結合のために圧力を加える加圧
部に、中空部を有する一または二以上の部材を塑性変形
させて、中空部の形状を実質的に変化させることなく、
他の一または二以上の部材と塑性結合することが可能と
なる。According to the present invention, according to the present invention, the pressurizing portion for applying pressure for plastic coupling, by plastically deforming one or more members having a hollow portion, without substantially changing the shape of the hollow portion ,
It becomes possible to plastically couple with one or more other members.
第１図は、塑性結合すべき２つの部材の結合部分の要部
を示す拡大略断面図であり、また、第２図は、塑性結合
後の２つの部材の結合部分の要部を示す拡大略断面図で
ある。 １……第１部材、２……第２部材、３……結合凹部、４
……中空部、５……通路、６……加圧部、７……充填
材。FIG. 1 is an enlarged schematic cross-sectional view showing a main part of a connecting part of two members to be plastically connected, and FIG. 2 is an enlarged view showing a main part of a connecting part of the two members after plastic connecting. It is a schematic sectional drawing. 1... First member, 2... Second member, 3.
... hollow part, 5 ... passage, 6 ... pressurizing part, 7 ... filler.
Claims (3)
一つの部材の結合面に結合凹部を形成し、少なくとも他
方の部材の中空部内の少なくとも加圧部およびその近傍
に消失可能で、圧縮強度が高く、かつ、弾性係数の小さ
い充填材を充填し、前記他方の部材の結合面近傍を加圧
することにより、塑性変形を生じさせ、塑性流動によっ
て、前記他方の部材の一部を前記結合凹部内に押し込
み、二以上の部材を塑性結合し、しかる後に、前記充填
材を除去することを特徴とする塑性結合方法。A coupling recess is formed in a coupling surface of at least one member of two or more members to be plastically coupled, and can be eliminated at least in at least a pressurized portion and a vicinity thereof in a hollow portion of the other member, and has a compressive strength. Is filled with a filler having a low elastic modulus, and the vicinity of the joint surface of the other member is pressurized to generate plastic deformation. By plastic flow, a part of the other member is formed in the joint concave portion. And plastically connecting the two or more members, and then removing the filler.
徴とする特許請求の範囲第１項に記載の塑性結合方法。2. The method according to claim 1, wherein the filler comprises a casting core.
を特徴とする特許請求の範囲第１項に記載の塑性結合方
法。3. The method according to claim 1, wherein the filler is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8723289A JP2717440B2 (en) | 1989-04-06 | 1989-04-06 | Plastic joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8723289A JP2717440B2 (en) | 1989-04-06 | 1989-04-06 | Plastic joining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02268936A JPH02268936A (en) | 1990-11-02 |
| JP2717440B2 true JP2717440B2 (en) | 1998-02-18 |
Family
ID=13909108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8723289A Expired - Fee Related JP2717440B2 (en) | 1989-04-06 | 1989-04-06 | Plastic joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2717440B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2958193B1 (en) * | 2010-04-06 | 2012-06-29 | Saint Jean Ind | PROCESS FOR MANUFACTURING LIGHT ALLOY FORGED PARTS INCORPORATING FULL OR DRAWN THICKNESS SECTIONS |
-
1989
- 1989-04-06 JP JP8723289A patent/JP2717440B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02268936A (en) | 1990-11-02 |
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