JPS6310065A - Arc welding method for sintered metallic material - Google Patents
Arc welding method for sintered metallic materialInfo
- Publication number
- JPS6310065A JPS6310065A JP15390886A JP15390886A JPS6310065A JP S6310065 A JPS6310065 A JP S6310065A JP 15390886 A JP15390886 A JP 15390886A JP 15390886 A JP15390886 A JP 15390886A JP S6310065 A JPS6310065 A JP S6310065A
- Authority
- JP
- Japan
- Prior art keywords
- sintered metal
- welding
- arc welding
- pretreatment
- welded
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は焼結金属材の溶接すべき面の表面に前処理を施
した後にアーク溶接を行なう焼結金属材のアーク溶接方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an arc welding method for sintered metal materials, in which arc welding is performed after pretreatment is applied to the surface of the sintered metal materials to be welded.
焼結金属には内部に小さい空孔が多数存在するため、従
来の被溶接材側を溶融させて溶接を行なう方法によると
、ブローホールが多発し健全な溶接は困難であった。こ
のため焼結金属の接合方法としては、従来はボルト、ナ
ツト類を用いた機械的結合方法、または炉中ロウ付方法
などが一般的であった。なお、この種の焼結金属の溶接
法としては特開昭４９−１０１２４５号公報によって開
示された電子ビームまたはプラズマによる溶接法が公知
である。Since sintered metal has many small pores inside, the conventional method of welding by melting the welded material side causes many blowholes, making it difficult to achieve sound welding. For this reason, the conventional methods for joining sintered metals have generally been mechanical joining methods using bolts and nuts, or furnace brazing methods. As a method of welding this type of sintered metal, a welding method using an electron beam or plasma disclosed in Japanese Unexamined Patent Publication No. 101245/1980 is known.
（発明が解決しようとする問題点〕
しかしながら上記の機械的結合方法によると、ボルト、
ナツト類の部品が必要であり、このための座ぐり穴明は
加工の工数も必要となる。また結合のための部品形状も
制約されるなどの問題があった。また炉中ロウ付の場合
には還元ガスが必要となりロウ付時間も長くかかり１部
品に発生する熱歪も大きくなるという開運があった。さ
らにまた特開昭４９−１０１２４５号公報によって開示
された溶接法は電子ビームまたはプラズマによる溶接で
あるためビード幅が広くなったり、または溶接ねらい位
置が少しずれただけで前処理の効果がなくなり、ブロー
ホールが多発するという開運があった。(Problem to be solved by the invention) However, according to the above mechanical connection method, bolts,
Nuts and other parts are required, and counterbore holes for these require additional man-hours. There are also problems such as restrictions on the shape of parts for joining. In addition, in the case of furnace brazing, reducing gas is required, the brazing time is long, and the thermal strain that occurs in one part is also large. Furthermore, since the welding method disclosed in JP-A No. 49-101245 uses electron beam or plasma welding, the bead width becomes wide or the welding target position shifts even slightly, causing the pretreatment to become ineffective. I was lucky that there were many blowholes.
本発明は上記事情に鑑みてなされたものであり、ブロー
ホールが発生せず溶接熱歪の小さい良好な溶接が可能と
なる焼結金属材のアーク溶接方法を提供することを目的
とする。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an arc welding method for sintered metal materials, which enables good welding without blowholes and with small welding heat distortion.
本発明は上記の目的を達成するために、焼結金属材の溶
接すべき面に、この溶接すべき面の表面の空孔部を閉塞
する前処理を施した後に、前記焼結金属材より融点の低
い合金を消耗式電極材料として用いてアーク溶接するよ
うにしたものである。In order to achieve the above object, the present invention pre-treats the surface of a sintered metal material to be welded to close the pores on the surface of the surface to be welded, and then Arc welding is performed using an alloy with a low melting point as a consumable electrode material.
上記表面の空孔部を閉塞する前処理としてはショツトブ
ラスト、ショットピーニング、またはロールによる加工
を用いる。As the pretreatment for closing the pores on the surface, shot blasting, shot peening, or processing using a roll is used.
上記の方法によると、消耗式電極材料に焼結金属材より
融点の低い金属を用いているので、焼結金属側をほとん
ど溶融させることなくＭＩＧロウ付によるアーク溶接を
することができ、前処理によって閉塞された焼結金属材
の空孔部が埋まった状態のまま溶接を完了することがで
き、同時に入熱量が従来の溶接に比べて少ないため溶接
歪が小さくなる。According to the above method, since a metal with a lower melting point than the sintered metal material is used as the consumable electrode material, arc welding by MIG brazing can be performed without almost melting the sintered metal side, and the pretreatment Welding can be completed while the pores of the sintered metal material are filled, and at the same time, welding distortion is reduced because the amount of heat input is smaller than in conventional welding.
以下、本発明に係る焼結金属材の溶接方法の一実施例を
図面を参照して説明する。Hereinafter, an embodiment of the method for welding sintered metal materials according to the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す、焼結金属材よりなる
構造部品１の開先部２にショツトブラスト処理を施し、
この開先部２の表面の空孔をつぶす、この構造部品１に
鉄鋼部品３をそれぞれに形成された開先部２，４を対向
させてセットし、これらの開先部２，４をねらって溶接
トーチ５によって溶接する。このとき銅系溶接ワイヤ６
と被溶接部品１，３の間にアルゴンガス７でシールドし
ながらアーク８を発生させ、主に溶接ワイヤ６を溶かし
、この溶けた銅系金属で開先部２，４に溶接ビード９を
形成させ、少くとも焼結合金側の被溶接材１はほとんど
溶かさずにＭ Ｉ Ｇロウ付接合により溶接する。FIG. 1 shows an embodiment of the present invention, in which a groove portion 2 of a structural component 1 made of a sintered metal material is subjected to shot blasting treatment,
To crush the pores on the surface of the groove 2, set the steel component 3 on the structural component 1 with the grooves 2 and 4 formed on each facing each other, and aim at these grooves 2 and 4. Welding is performed using a welding torch 5. At this time, the copper welding wire 6
An arc 8 is generated between the parts 1 and 3 to be welded while shielding with argon gas 7, mainly melting the welding wire 6, and welding beads 9 are formed in the grooves 2 and 4 with the molten copper metal. Then, at least the material to be welded 1 on the sintered alloy side is welded by M I G brazing without substantially melting it.
本実施例によれば、焼結金属内部をほとんど溶かさずに
溶接するため、ショツトブラスト処理によって閉塞され
た空孔は埋まった状態のまま溶接が完了するので、ブロ
ーホールのない健全な溶接ビードを形成させることがで
きる。また被溶接部材側を負極とすることにより、アー
ク８のクリーニング効果で表面酸化物などが破壊され、
清浄な面となりながら溶接が進行するため、前処理で表
面酸化物などを除去する必要がなくなる。さらにまた被
溶接側の接合部を溶かさないため１人熱量が従来の溶接
に比べ少くてよく溶接歪が小さくなる利点がある。According to this example, since welding is performed without melting the inside of the sintered metal, the welding is completed with the pores closed by shot blasting still filled, resulting in a healthy weld bead without blowholes. can be formed. In addition, by using the negative electrode on the side of the welded material, the cleaning effect of the arc 8 destroys surface oxides, etc.
Since welding progresses with a clean surface, there is no need to remove surface oxides etc. in pre-treatment. Furthermore, since the joint on the side to be welded is not melted, the amount of heat consumed by one person is smaller than in conventional welding, and there is an advantage that welding distortion is reduced.
第２図は焼結部品にショツトブラスト処理を行なわずに
アーク溶接した場合の断面写真（１０倍）であり、焼結
金属内部に存在する空孔から溶接熱によりガスが吹き出
し、黒い部分として見られるように溶着金属中にブロー
ホールが生じている６第３図は本実施例の方法により溶
接した場合の断面写真（１０倍）であり、焼結部品の溶
接される面の空孔がショツトブラストによりつぶされて
おり、焼結金属内部に含まれるガスが溶接面から吹き出
さないため、ブローホールのない良好な溶接ビードを形
成している。Figure 2 is a cross-sectional photograph (10x magnification) of a sintered part arc welded without shot blasting. Gas is blown out from the pores inside the sintered metal due to the welding heat, and can be seen as black areas. Figure 3 is a cross-sectional photograph (10 times magnification) when welding was performed using the method of this example, and shows that the holes on the surface of the sintered part to be welded are short. Since the sintered metal is crushed by blasting and the gas contained inside the sintered metal does not blow out from the welding surface, a good weld bead with no blowholes is formed.
上述した実施例では前処理の手段としてショツトブラス
トを用いた場合について説明したが、この前処理はショ
ットピーニングやロール加工であっても同様の効果を有
する。In the above-mentioned embodiments, shot blasting was used as the pretreatment means, but shot peening or roll processing can have the same effect as the pretreatment.
上述したように本発明によれば、焼結金属材の溶接面の
空孔部を閉塞する前処理を施した後に、焼結金属材より
融点の低い金属の消耗式電極材料によってアーク溶接す
るので、ブローホールの生じない良好な溶接が可能とな
り、溶接熱歪を小さくすることができる。また前工程に
おける洗浄作業が不要となり、しかも溶接ワイヤのねら
い位置が多少ずれても品質に大きな差が生ずることがな
く作業性、生産性が非常に向上する。As described above, according to the present invention, arc welding is performed using a consumable electrode material made of a metal whose melting point is lower than that of the sintered metal material after performing a pretreatment to close the pores on the welding surface of the sintered metal material. , it becomes possible to perform good welding without blowholes, and it is possible to reduce welding thermal distortion. Further, cleaning work in the previous process is not required, and even if the target position of the welding wire is slightly shifted, there is no large difference in quality, and workability and productivity are greatly improved.
第１＠は本発明に係る焼結金属材のアーク溶接方法の一
実施例を示す縦断面図、第２図及び第３図はそれぞれシ
ョツトブラストによる前処理を行なわない場合と行なっ
た場合における焼結金属材のアーク溶接部断面の組織を
示す顕微鏡写真である。
１・・・構造部品（焼結金属材）。
６・・・溶接ワイヤ（消耗式電極材料）。Fig. 1 is a vertical cross-sectional view showing an example of the arc welding method for sintered metal materials according to the present invention, and Figs. 2 and 3 are sintered metal materials with and without shot blast pretreatment, respectively. It is a micrograph showing the structure of a cross section of an arc welded part of a compact metal material. 1... Structural parts (sintered metal materials). 6...Welding wire (consumable electrode material).
Claims (5)
の表面の空孔部を閉塞する前処理を施した後に、前記焼
結金属材より融点の低い金属を消耗式電極材料として用
いてアーク溶接することを特徴とする焼結金属材のアー
ク溶接方法。(1) After performing a pretreatment on the surface of the sintered metal material to close the pores on the surface of the surface to be welded, a metal with a melting point lower than that of the sintered metal material is used as a consumable electrode material. A method for arc welding sintered metal materials, characterized by performing arc welding using a sintered metal material.
る特許請求の範囲第１項記載の焼結金属材のアーク溶接
方法。(2) The method for arc welding sintered metal materials according to claim 1, wherein the pretreatment is shot blasting.
する特許請求の範囲第１項記載の焼結金属材のアーク溶
接方法。(3) The method for arc welding sintered metal materials according to claim 1, wherein the pretreatment is shot peening.
請求の範囲第１項記載の焼結金属材のアーク溶接方法。(4) The method for arc welding sintered metal materials according to claim 1, wherein the pretreatment is roll processing.
であることを特徴とする特許請求の範囲第１項乃至第４
項のいずれかに記載の焼結金属材のアーク溶接方法。(5) Claims 1 to 4, characterized in that the consumable electrode material is copper or an alloy containing copper as a main component.
A method for arc welding a sintered metal material according to any one of paragraphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15390886A JPS6310065A (en) | 1986-06-30 | 1986-06-30 | Arc welding method for sintered metallic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15390886A JPS6310065A (en) | 1986-06-30 | 1986-06-30 | Arc welding method for sintered metallic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6310065A true JPS6310065A (en) | 1988-01-16 |
Family
ID=15572732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15390886A Pending JPS6310065A (en) | 1986-06-30 | 1986-06-30 | Arc welding method for sintered metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6310065A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1061240A3 (en) * | 1999-06-17 | 2002-12-11 | Scambia Industrial Developments Aktiengesellschaft | Method of joining section elements of an exhaust system and exhaust system |
| DE102009059686A1 (en) | 2009-12-19 | 2011-06-22 | Umicore AG & Co. KG, 63457 | alloy |
-
1986
- 1986-06-30 JP JP15390886A patent/JPS6310065A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1061240A3 (en) * | 1999-06-17 | 2002-12-11 | Scambia Industrial Developments Aktiengesellschaft | Method of joining section elements of an exhaust system and exhaust system |
| DE102009059686A1 (en) | 2009-12-19 | 2011-06-22 | Umicore AG & Co. KG, 63457 | alloy |
| WO2011073177A1 (en) | 2009-12-19 | 2011-06-23 | Umicore Ag & Co. Kg | Use of a cu alloy for brazing components of exhaust gas systems 84-88 % copper; 8.5-13.5% manganese; 1.5-4 % cobalt or nickel; 0 - 0.5% silicon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07214308A (en) | Method of joining metal part by melting arc welding | |
| JPS58119481A (en) | Laser beam melting welding method | |
| CN102310289A (en) | Hybrid laser arc welding technology and equipment | |
| CN114799514B (en) | Laser oscillation scanning welding method for magnesium-lithium alloy | |
| US6646222B1 (en) | Electron beam welding method | |
| Beyer et al. | Hybrid laser welding techniques for enhanced welding efficiency | |
| Kurtulmus et al. | Activated flux TIG welding of non-ferrous metals. | |
| Kim et al. | Welding of AZ31B magnesium alloy by YAG laser/TIG arc hybrid welding process | |
| US20240326168A1 (en) | Method for welding or additive manufacturing by laser fusion then cooling with powder inerting | |
| JPH06285657A (en) | Laser welding process | |
| Yükler et al. | Activated Flux TIG Welding Of Non-Ferrous Metals | |
| JP2505547B2 (en) | Electronic beam welding method for casting materials | |
| JPH09155565A (en) | Electron beam welding method and its welding machine | |
| JPH06254689A (en) | Laser beam welding method for strip metal | |
| Denney et al. | The welding of galvanized steel | |
| US5208828A (en) | Production of transition joints between ferritic steel components | |
| JP2002144066A (en) | Welding method of aluminum plated steel sheet | |
| JP3213750B2 (en) | Auxiliary material for welding | |
| Vedani | Welding | |
| JP2002103035A (en) | Seam welding method for UO steel pipe | |
| JPH04327385A (en) | Lap welding method by laser beam | |
| Dahlgren et al. | Study of international published experiences in joining copper and copper-alloys | |
| JP2985166B2 (en) | Pretreatment method for welding of sintered material | |
| Cornu | Historical Development of Welding | |
| JP3075842B2 (en) | Overlay welding method to Al, Al base material |