JPH07115216B2 - Friction welding method - Google Patents
Friction welding methodInfo
- Publication number
- JPH07115216B2 JPH07115216B2 JP62121188A JP12118887A JPH07115216B2 JP H07115216 B2 JPH07115216 B2 JP H07115216B2 JP 62121188 A JP62121188 A JP 62121188A JP 12118887 A JP12118887 A JP 12118887A JP H07115216 B2 JPH07115216 B2 JP H07115216B2
- Authority
- JP
- Japan
- Prior art keywords
- welding method
- friction welding
- metal
- joint surface
- oxide film
- 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
- 238000003466 welding Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 238000005304 joining Methods 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、摩擦溶接方法に関する。TECHNICAL FIELD The present invention relates to a friction welding method.
従来から、二つの金属部材、即ち母材を突合せて相対回
転運動をさせ、その接触面に発生する摩擦熱を利用して
圧接する摩擦溶接方法が知られている。BACKGROUND ART Conventionally, a friction welding method has been known in which two metal members, that is, base materials are butted against each other to perform relative rotational movement, and pressure welding is performed by utilizing friction heat generated on the contact surfaces.
具体的には、大気中において母材の一方を固定し、他方
を駆動系に結合された軸に取付けて一定回転数で回転し
続け、軸方向にアプセット推力を与えて加圧しつつ摩擦
させて、摩擦部が適温になったとき、ブレーキによって
回転を急停止させておこなわれる。このとき摩擦部の温
度は、同種材間の圧接ではその材料の融点直下まで上昇
しており、また異材圧接の場合には、融点の低い方の母
材の融点あるいは両母材の共晶点に達しているものと推
察されている。Specifically, one of the base materials is fixed in the atmosphere, the other is attached to the shaft connected to the drive system and continues to rotate at a constant rotation speed, and the upset thrust force is applied in the axial direction to cause friction while applying pressure. When the friction part reaches an appropriate temperature, the brake is used to suddenly stop the rotation. At this time, the temperature of the friction part rises to just below the melting point of the same material in pressure welding between similar materials, and in the case of different material pressure welding, the melting point of the base material with the lower melting point or the eutectic point of both base materials It is estimated that it has reached.
しかしながら、圧接作業は、大気中で行われるため、母
材の接合面は酸化被膜で覆われており、その酸化被膜、
その他汚れなどを接合界面から押し出す必要があるた
め、押出されるばりの量も多く、そのばり取りに多大の
労力を要した。However, since the pressure welding work is performed in the atmosphere, the bonding surface of the base material is covered with an oxide film,
In addition, since it is necessary to push out dirt and the like from the bonding interface, a large amount of flash is extruded, which requires a great deal of labor to remove the flash.
また、特にチタンやジルコニウムなどの超耐熱金属材料
からなる異材継手の接合においては、酸化被膜の影響も
加わってアプセット推力をより大きくする必要があっ
た。In addition, particularly in the joining of dissimilar joints made of super heat resistant metal materials such as titanium and zirconium, it has been necessary to increase the upset thrust due to the influence of the oxide film.
更に、酸化被膜や汚れなどにより圧接条件が一定せず、
接合強度などの品質の不均一がみられた。Furthermore, the pressure contact conditions are not constant due to oxide film and dirt,
Uneven quality such as bonding strength was observed.
本発明は、かかる問題点に鑑みなされたもので、その目
的は作業の高能率化を図りしかも高品質の継手を得るこ
とができる優れた摩擦溶接方法を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to provide an excellent friction welding method capable of improving work efficiency and obtaining a high quality joint.
本発明の方法は、二つの金属部材を相互の摩擦熱によっ
て接合する摩擦溶接方法において、上記金属部材を非酸
化雰囲気中に存在させ、該金属部材の接合面に生成され
た酸化被膜を電圧を負荷した金属ブラシまたは炭素ブラ
シにより電気的、機械的に除去した後、接合面を活性化
させた状態で圧接するようにしたことを要旨とする。The method of the present invention is a friction welding method for joining two metal members by mutual frictional heat, wherein the metal member is present in a non-oxidizing atmosphere, and an oxide film formed on the joint surface of the metal member is applied with a voltage. The gist is that after electrically and mechanically removing with a loaded metal brush or carbon brush, pressure is applied while the joint surface is activated.
真空または不活性ガスで充満された非酸化雰囲気中で、
二つの金属部材からその接合面に生成された酸化被膜を
除去して、接合面を活性化させ、しかる後その状態で圧
接する。このため接合面から押出されるバリを皆無もし
くは極めて少量にすることができ、かつ、アプセット推
力も小さくできる。In a non-oxidizing atmosphere filled with vacuum or inert gas,
The oxide film formed on the joint surface is removed from the two metal members to activate the joint surface, and then pressure contact is performed in that state. Therefore, the burr extruded from the joint surface can be eliminated or can be made extremely small, and the upset thrust can be reduced.
本発明の摩擦溶接方法の一実施例を説明する。 An embodiment of the friction welding method of the present invention will be described.
円形断面からなる二つの金属部材をアルゴンガスで充満
されたチャンバ内に存在させ、チャンバ内で金属部材の
接合面をそれぞれ電圧を負荷した金属ブラシまたは炭素
ブラシなどにより電気的、機械的に削除して、接合面に
存在する酸化被膜および汚れた付着膜を取り除き、接合
面を活性化させた状態とする。即ち接合する金属部材と
金属ブラシまたは炭素ブラシとの間に５〜50KV、放電周
期が１〜10μｓの高周波電圧をかけながらブラシを回転
させ放電と機械的摺擦により、原子レベルの表面汚染層
や酸素原子を除去して清浄で活性化した表面とする。そ
の状態のまま二つの金属部材を突合せて相対回転運動を
させ、その接触面に発生する摩擦熱を利用して圧接して
結合する。Two metal members having a circular cross section are present in a chamber filled with argon gas, and the joining surfaces of the metal members are electrically and mechanically removed by a voltage-loaded metal brush or carbon brush. Then, the oxide film and the dirty adhering film present on the joint surface are removed to activate the joint surface. That is, the brush is rotated while applying a high-frequency voltage of 5 to 50 KV and a discharge cycle of 1 to 10 μs between the metal member to be joined and the metal brush or carbon brush, and the surface contamination layer at the atomic level or the surface is contaminated by discharge and mechanical rubbing. Oxygen atoms are removed to obtain a clean and activated surface. In this state, the two metal members are abutted against each other to make a relative rotational movement, and the frictional heat generated on the contact surface is used for pressure contact and coupling.
以上の如く本発明の方法は、非酸化雰囲気中で、接合面
に生成された酸化被膜を除去した後、接合面を活性化さ
せた状態で圧接するようにしたので、従来摩擦溶接で
は、酸化被膜及び大気中から接合部への酸素ガスの混入
により材質的にもろくなるために、結合が非常に困難と
されていたステンレス鋼とジルコニウム合金との接合も
容易に行える。また酸化被膜という摩擦溶接における障
害物を除去することで摩擦熱を従来よりも低くして圧接
でき、セラミックスと金属の接合も、ある限られたセラ
ミックスについては割れることなく接合できる。その
他、超耐熱金属や活性金属、例えばジルコニウムやチタ
ンと他種金属からなる異材継手の接合にも適している。As described above, according to the method of the present invention, after removing the oxide film formed on the joint surface in the non-oxidizing atmosphere, pressure welding is performed while the joint surface is activated. Since the material becomes brittle due to the mixture of oxygen gas from the coating and the atmosphere into the joint, the joining of stainless steel and zirconium alloy, which has been very difficult to join, can be easily performed. Further, by removing the oxide coating, which is an obstacle in friction welding, frictional heat can be made lower than before and pressure welding can be performed, and even ceramics and metals can be welded without cracking some limited ceramics. In addition, it is also suitable for joining dissimilar metal joints made of super-heat-resistant metals and active metals such as zirconium and titanium and other metals.
なお、上記実施例ではチャンバ内をアルゴンガスで充満
した場合について説明したが、チャンバ内の雰囲気は、
ヘリウムガス、窒素ガス等の不活性ガスまたは真空でも
よく、要は、金属表面に酸化被膜を生成しない非酸化雰
囲気であればよい。In the above embodiment, the case where the chamber is filled with argon gas has been described, but the atmosphere in the chamber is
An inert gas such as helium gas or nitrogen gas or vacuum may be used, and the point is that a non-oxidizing atmosphere that does not form an oxide film on the metal surface may be used.
その他、本発明の要旨を逸脱しない範囲内で種々変更し
得ることは勿論である。Of course, various changes can be made without departing from the scope of the present invention.
以上述べた如く本発明によれば、次のような優れた効果
を発揮する。As described above, according to the present invention, the following excellent effects are exhibited.
（１） 接合部から押出されるバリの量を皆無もしくは
極めて少量にすることができる。(1) The amount of burrs extruded from the joint can be reduced to a very small amount.
（２） アプセット推力を小さくすることができる。(2) Upset thrust can be reduced.
（３） 接合面を活性化させた状態で接合するため、圧
接条件は常に一定にでき、接合強度の高い高品質の継手
が得られる。(3) Since the joining surfaces are joined in an activated state, the pressure welding conditions can always be kept constant, and a high quality joint with high joint strength can be obtained.
（４） 超耐熱金属、その他広範な材料からなる異材継
手の接合に適用できる。(4) Applicable to joining dissimilar material joints made of super heat-resistant metal and other wide range of materials.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平田 末美 神奈川県横浜市磯子区新中原町１番地 石 川島播磨重工業株式会社技術研究所内 (56)参考文献 特開 昭59−92186（ＪＰ，Ａ) 特公 昭38−23014（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Sumi Hirata, Inventor Suemi Hirata, Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa, Ishikawajima-Harima Heavy Industries Co., Ltd. Technical Research Institute (56) Reference JP-A-59-92186 (JP, A) ) Japanese Patent Publication No. Sho 38-23014 (JP, B1)
Claims (1)
合する摩擦溶接方法において、上記金属部材を非酸化雰
囲気中に存在させ、該金属部材の接合面に生成された酸
化被膜を電圧を負荷した金属ブラシまたは炭素ブラシに
より電気的、機械的に除去した後、接合面を活性化させ
た状態で圧接するようにしたことを特徴とする摩擦溶接
方法。1. A friction welding method for joining two metal members by mutual frictional heat, wherein the metal member is present in a non-oxidizing atmosphere, and an oxide film formed on the joint surface of the metal member is loaded with a voltage. A friction welding method, characterized in that, after being electrically and mechanically removed by the metal brush or carbon brush described above, pressure is applied while the joint surface is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121188A JPH07115216B2 (en) | 1987-05-20 | 1987-05-20 | Friction welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121188A JPH07115216B2 (en) | 1987-05-20 | 1987-05-20 | Friction welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63286288A JPS63286288A (en) | 1988-11-22 |
| JPH07115216B2 true JPH07115216B2 (en) | 1995-12-13 |
Family
ID=14805036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62121188A Expired - Fee Related JPH07115216B2 (en) | 1987-05-20 | 1987-05-20 | Friction welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07115216B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03133585A (en) * | 1989-10-17 | 1991-06-06 | Ishikawajima Harima Heavy Ind Co Ltd | Cold solid phase joining method |
| JP2782630B2 (en) * | 1989-10-17 | 1998-08-06 | 石川島播磨重工業株式会社 | Room temperature solid state bonding |
| JPH03184682A (en) * | 1989-12-14 | 1991-08-12 | Ishikawajima Harima Heavy Ind Co Ltd | Friction welding method |
| JPH084226Y2 (en) * | 1990-11-30 | 1996-02-07 | 石川島播磨重工業株式会社 | Room temperature solid state bonding equipment |
| US7922065B2 (en) * | 2004-08-02 | 2011-04-12 | Ati Properties, Inc. | Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts |
| US10118259B1 (en) | 2012-12-11 | 2018-11-06 | Ati Properties Llc | Corrosion resistant bimetallic tube manufactured by a two-step process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5992186A (en) * | 1982-11-17 | 1984-05-28 | Nippon Steel Corp | Production of metal clad steel plate |
-
1987
- 1987-05-20 JP JP62121188A patent/JPH07115216B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63286288A (en) | 1988-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |