JPS626911B2 - - Google Patents
Info
- Publication number
- JPS626911B2 JPS626911B2 JP56019232A JP1923281A JPS626911B2 JP S626911 B2 JPS626911 B2 JP S626911B2 JP 56019232 A JP56019232 A JP 56019232A JP 1923281 A JP1923281 A JP 1923281A JP S626911 B2 JPS626911 B2 JP S626911B2
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- metal
- tip
- welding
- tapered
- 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
Links
- 239000002184 metal Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 18
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Description
【発明の詳細な説明】
本発明は金属部品をレーザビームによつて溶接
する方法に関するレーザビーム溶接は、従来のア
ーク溶接や電気抵抗溶接では接合不可能であつた
微少部分や入り組んだ部分などの溶接を可能にし
た。また、電子ビーム溶接に比較すると装置が小
形で操作も容易であるため、種々の分野で利用さ
れている。しかし、レーザビーム溶接機で大出力
のものは装置が大形化するだけでなく高価である
ので、小出力のものが広く使用されているのが現
状である。このため、比較的大形の金属同志を溶
接する場合、接合部の溶解が不十分であり、強度
的に弱いという欠点があつた。また、銅のように
熱伝導の良い金属の場合も、温度を上げることが
むずかしく溶接が困難であつた。さらに接合部を
局部的に溶解するためには、レーザビーム照射角
度を最適にする必要があり、作業性に問題があつ
た。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of welding metal parts using a laser beam. Laser beam welding is a method for welding metal parts using a laser beam. It made welding possible. Furthermore, compared to electron beam welding, the device is smaller and easier to operate, so it is used in various fields. However, since a high output laser beam welding machine not only increases the size of the device but also is expensive, at present, low output laser beam welding machines are widely used. For this reason, when relatively large metal pieces are welded together, the welding part is insufficiently melted and the strength is weak. Furthermore, even in the case of metals with good thermal conductivity such as copper, it is difficult to raise the temperature and welding is difficult. Furthermore, in order to locally melt the joint, it is necessary to optimize the laser beam irradiation angle, which poses a problem in workability.
本発明は前記の欠点を解消し、レーザビーム溶
接による金属接合部の強度を高めると同時に、作
業性の改善を目的としたものである。 The present invention aims to eliminate the above-mentioned drawbacks, increase the strength of metal joints formed by laser beam welding, and at the same time improve workability.
以下に本発明を種々の実施例にもとづいて説明
する。第１図は金属平板同志のレーザビーム溶接
における本発明の実施例である。金属平板１，２
の接合部はそれぞれ先端部が薄手になるようにテ
ーパ状になつており、この先端部をレーザビーム
３で照射することにより溶接する。接合部の先端
部を0.05〜0.2mm程まで薄手になるようテーパ状
の形状にすることによつて次のような効果が得ら
れる。 The present invention will be explained below based on various embodiments. FIG. 1 shows an embodiment of the present invention in laser beam welding of flat metal plates. Metal flat plate 1, 2
The joints are each tapered so that the tip ends thereof are thin, and the ends are welded by irradiating them with a laser beam 3. The following effects can be obtained by tapering the tip of the joint to a thickness of about 0.05 to 0.2 mm.
イ 先端部の熱容量が小さく小出力のレーザビー
ム照射で金属の溶解が容易にできる。B) The tip has a small heat capacity and can easily melt metal with low-power laser beam irradiation.
ロ 先端部の断面積が小さいので、熱伝導抵抗を
高めやすく小出力のレーザビーム照射で金属の
溶解が容易にできる。(b) Since the cross-sectional area of the tip is small, it is easy to increase the thermal conduction resistance, and metal can be easily melted by low-power laser beam irradiation.
ハ テーパ部先端が容易に溶解するので銅部品の
ように熱伝導の良い金属でも溶接できる。これ
は、銅部品の先端をテーパ状に加工した場合、
そのテーパ先端部の断面積が小さくなり熱伝導
抵抗が高まるので、テーパ先端部へのレーザ照
射によつて先端から容易に溶解できるからであ
る。C. Since the tip of the tapered part melts easily, metals with good thermal conductivity such as copper parts can be welded. This is because when the tip of a copper part is processed into a tapered shape,
This is because the cross-sectional area of the tapered tip becomes smaller and the heat conduction resistance increases, so that it can be easily melted from the tip by laser irradiation to the tapered tip.
ニ 比較的大型の金属同志を溶接する場合、従来
のように単に金属板の端面同志を突き合わせて
溶接するのに比べ小さいレーザパワーで溶接で
き、しかもテーパ状接合部の金属が十分に溶融
するので、接合強度が増す。D. When welding relatively large pieces of metal together, it is possible to weld with a lower laser power compared to conventional welding by simply butting the end surfaces of metal plates together, and the metal in the tapered joint can be sufficiently melted. , the bond strength increases.
ホ テーパ部先端だけが溶解するので、不必要な
ガス放出が少ない。Since only the tip of the taper part is melted, there is less unnecessary gas release.
ヘ 従来は金属の端面同志を接合し、その接合部
へ端面に平行にレーザビームを照射することに
よつて接合部が一様に溶融されるようにしてい
たが、本発明では接合部がテーパ状であるの
で、テーパ接合部へのレーザビームの照射角度
を特定しなくても、ロの効果からテーパ接合部
を容易に溶融できる。F. Conventionally, the end faces of metals were joined together and the joined part was irradiated with a laser beam parallel to the end faces so that the joined part was uniformly melted. However, in the present invention, the joined part is tapered. Therefore, the taper joint can be easily melted due to the effect of (b) without specifying the irradiation angle of the laser beam to the taper joint.
第２図は金属円筒４と金属平板５とのレーザビ
ーム溶接における本発明の実施例である。この実
施例では、金属円筒４の接合部をテーパ状にし、
このテーパの先端部を円筒軸方向からレーザビー
ム３により照射することにより溶接するものであ
る。 FIG. 2 shows an embodiment of the present invention in laser beam welding between a metal cylinder 4 and a metal flat plate 5. In this embodiment, the joint portion of the metal cylinder 4 is tapered,
Welding is performed by irradiating the tip of this taper with a laser beam 3 from the direction of the cylinder axis.
第３図は金属円筒６の内部にもう１つの金属円
筒７をレーザビーム溶接する場合の本発明の実施
例である。この実施例では、金属円筒７の接合部
をテーパ状にし、このテーパの先端部をレーザビ
ーム３で照射することにより溶接するものであ
る。 FIG. 3 shows an embodiment of the present invention in which another metal cylinder 7 is laser beam welded inside the metal cylinder 6. In this embodiment, the joining portion of the metal cylinder 7 is tapered, and the tip of the taper is irradiated with a laser beam 3 to weld.
第４図は金属円筒８，９同志のレーザビーム溶
接における本発明の実施例である。この実施例で
は、金属円筒９の接合部をテーパ状にし、このテ
ーパの先端部を円筒軸と直角方向からレーザビー
ム３で照射することにより溶接するものである。 FIG. 4 shows an embodiment of the present invention in laser beam welding of metal cylinders 8 and 9. In this embodiment, the joint portion of the metal cylinder 9 is tapered and welded by irradiating the tip of the taper with a laser beam 3 from a direction perpendicular to the cylinder axis.
以上ここでは、４つの実施例について図面をも
つて説明したが、本発明は種々の変形が可能であ
り、その請求範囲はここでの実施例に限定される
ものではない。 Here, four embodiments have been described with reference to the drawings, but the present invention can be modified in various ways, and the scope of claims is not limited to the embodiments herein.
第１図〜第４図は本発明の実施例の断面図であ
る。
１，２，５……金属平板、３……レーザビー
ム、４，６，７，８，９……金属円筒。
1 to 4 are cross-sectional views of embodiments of the present invention. 1, 2, 5...metal flat plate, 3...laser beam, 4,6,7,8,9...metal cylinder.
Claims (1)
とも一方の金属部品の接合部の先端をテーパ状に
加工したテーパ部を形成し、前記テーパ部の先端
部にレーザビームを照射して溶接することを特徴
とするレーザ溶接方法。1. A method for laser welding metal parts, characterized in that a tapered part is formed by processing the tip of the joint part of at least one metal part into a tapered shape, and welding is performed by irradiating the tip of the tapered part with a laser beam. Laser welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019232A JPS57134289A (en) | 1981-02-12 | 1981-02-12 | Metallic parts for laser beam welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019232A JPS57134289A (en) | 1981-02-12 | 1981-02-12 | Metallic parts for laser beam welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57134289A JPS57134289A (en) | 1982-08-19 |
| JPS626911B2 true JPS626911B2 (en) | 1987-02-14 |
Family
ID=11993631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56019232A Granted JPS57134289A (en) | 1981-02-12 | 1981-02-12 | Metallic parts for laser beam welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134289A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60197460A (en) * | 1984-03-21 | 1985-10-05 | 株式会社日立製作所 | Truck frame for railway rolling stock |
| JP5677786B2 (en) * | 2010-08-23 | 2015-02-25 | パナソニック デバイスＳｕｎｘ株式会社 | Manufacturing method of detection sensor |
| US9878640B2 (en) | 2012-09-12 | 2018-01-30 | Ts Tech Co., Ltd. | Vehicle seat and method for manufacturing same |
-
1981
- 1981-02-12 JP JP56019232A patent/JPS57134289A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57134289A (en) | 1982-08-19 |
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