JPH02247091A - Laser beam welding method - Google Patents
Laser beam welding methodInfo
- Publication number
- JPH02247091A JPH02247091A JP1066064A JP6606489A JPH02247091A JP H02247091 A JPH02247091 A JP H02247091A JP 1066064 A JP1066064 A JP 1066064A JP 6606489 A JP6606489 A JP 6606489A JP H02247091 A JPH02247091 A JP H02247091A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welded
- laser beam
- copper
- materials
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、レーザビームによる銅板あるいは銅合金板
の突合せ片側裏波溶接を行うためのレーザ溶接方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a laser welding method for performing butt one-sided back wave welding of copper plates or copper alloy plates using a laser beam.
第４図〜第６図は例えば実開昭６０−１７６８９０号公
報に示された従来の被溶接材固定治具であり、図におい
て、被溶接材（１） （２）は溶接用バックバー（３）
で下部から支えられ、溶接用バックバー（３）はホルダ
ー（４）Ｋより下部から支えられる。（５）はホルダー
（４）Ｋ設けたスリットである。また、被溶接材（１１
（２）は上側からクランプ装置（６） （７１Ｋより押
えつけられる。（８）は被溶接材（１１（２）互いの突
合せ箇所へ導かれるレーザビームで、集光レンズ（９）
で集光される。Figures 4 to 6 show a conventional welding material fixing jig shown in, for example, Japanese Utility Model Application No. 60-176890. In the figures, welding materials (1) and (2) are welding back bars ( 3)
The welding back bar (3) is supported from below by the holder (4) K. (5) is a slit provided in holder (4)K. In addition, the material to be welded (11
(2) is pressed down from above by the clamping device (6) (71K). (8) is the material to be welded (11) (2) The laser beam is guided to the butt point of each other, and the condenser lens (9)
The light is focused.
（１０）はホルタ゛−（４）のスリット（５）ｉ部に置
かれたレーザビーム吸収板である。(10) is a laser beam absorption plate placed at the i portion of the slit (5) of the holster (4).
以上の構成により、被溶接材（１１（２１は固定され、
レーザビーム（８）Ｋより溶接される。With the above configuration, the workpiece to be welded (11 (21 is fixed,
Welding is performed using a laser beam (8)K.
以上のような従来のレーザ浴接方法は、被溶接材の固定
治具を、常温で使用することを前提に考えられている。The conventional laser bath welding method as described above is designed on the premise that the fixing jig for the welded material is used at room temperature.
しかし熱伝導性にすぐれた銅あるいは銅合金等が被溶接
材の場合には、加えられた熱エネルギーが急速に被溶接
材固定治具へ逃げるため、レーザビーム照射位置が融点
に達しにくく、溶接時には太ぎな照射エネルギーを必要
とする。However, when the material to be welded is copper or copper alloy, which has excellent thermal conductivity, the applied thermal energy quickly escapes to the material fixing jig, making it difficult for the laser beam irradiation position to reach the melting point, resulting in welding. Sometimes a large amount of irradiation energy is required.
因みに、溶接用バックバーの溝幅が５〜７ｍｍのとき、
被溶接材（１１（２１上でのレーザビーム出力が４にＷ
の場合、板厚１，０ｍｍ以上の銅板の突合せ片側り裏波
浴接は実質的に不可能であった。By the way, when the groove width of the welding back bar is 5 to 7 mm,
The laser beam output on the material to be welded (11 (21) is increased to 4 W
In this case, it was virtually impossible to weld copper plates with a thickness of 1.0 mm or more using one-sided butt welding.
この発明は上記の課題を解決するためになされたもので
、溶接時のレーザ照射エネルギーが被溶接材固定治具へ
逃げるのを防ぐと共に、溶接時に必要となるレーザ照射
エネルギーを低くおさえることができるレーザ溶接方法
を得ることを目的とする。This invention was made to solve the above problems, and it is possible to prevent the laser irradiation energy during welding from escaping to the welding material fixing jig, and to suppress the laser irradiation energy required during welding. The purpose is to obtain a laser welding method.
〔課題を解決するための手段１
この発明に係るレーザ溶接方法は、板厚０．７〜２、Ｏ
ｍｍの銅板あるいは銅合金板の溶接に際し、被溶接材固
定治具を５０〜３００℃に加熱、保持して溶接を行う。[Means for Solving the Problems 1] The laser welding method according to the present invention has a plate thickness of 0.7 to 2, O
When welding copper plates or copper alloy plates with a diameter of 1 mm, the welding material fixing jig is heated and maintained at 50 to 300°C.
この発明においては、被溶接材固定治具を加熱保持しそ
こへ被溶接材をセットし突合せ片側裏波溶接を奥行する
。つまり、被溶接材の予熱を意図するものではなく、溶
接時に被溶接材へ照射されたレーザビームエネルギを熱
の形で治具へ逃がすことを防ぐものである。In this invention, the welding material fixing jig is heated and held, the welding material is set there, and butt welding is performed in depth on one side. In other words, it is not intended to preheat the material to be welded, but rather to prevent the laser beam energy irradiated to the material to be welded during welding from escaping to the jig in the form of heat.
以下、この発明の一実施例を第１図を参照して鯖明する
。図において、符号（１）〜（９）は第４図〜第６図と
同一または同等部分を示す。溶接用バックバー（３）を
加熱するヒータ（１１）およびクランプ装置（６１（７
１をそれぞれ加熱するヒータ（１２）（１３）が設けら
れている。こｊらのヒータはいずれも投入電力を制御す
ることにより温度コントロールがでいは＠合金板とする
。An embodiment of the present invention will be explained below with reference to FIG. In the figures, symbols (1) to (9) indicate the same or equivalent parts as in FIGS. 4 to 6. A heater (11) that heats the welding back bar (3) and a clamp device (61 (7)
Heaters (12) and (13) are provided for heating the respective parts. The temperature of these heaters can be controlled by controlling the input power, and these heaters are made of alloy plates.
以上により、溶接用バックバー（３）およびクランプ装
ｆｉ （６） ｆ７１などの固定治具をそれぞれ加熱し
てレザ溶接を行った場合のデータを以下に記す。As described above, the data when laser welding is performed by heating the fixing jigs such as the welding back bar (3) and the clamp device fi (6) f71 are described below.
（１）溶接条件
（１１）継手評価結果
上記の浴接条件により、なめらかな片側裏波溶接継手が
得られた。また、溶接継手の機械強度も、アーク溶接に
よる継手と比較して同等以上の品質であった。(1) Welding conditions (11) Joint evaluation results Under the bath welding conditions described above, a smooth one-side Uranami welded joint was obtained. Furthermore, the mechanical strength of the welded joints was of equal or higher quality than joints made by arc welding.
なお、上記実施例では加熱、保持する固定治具は溶接用
バックバー（３）とクランプ装置（６１（７）の場合の
もので説明したが、第２図に示すように溶接用バンクバ
ー（３）のみ、あるいは第３図に示すように、クランプ
装置（６１ｍのみの加熱でも上記実施例と同様の効果を
奏する。この場合、加熱温度は、加熱しない治具への熱
の逃げを考慮し、高目に設定する必要がある。In the above embodiment, the fixing jig for heating and holding was explained for the welding back bar (3) and the clamping device (61 (7)), but as shown in Fig. 2, the welding bank bar ( 3) or, as shown in Fig. 3, heating only the clamping device (61m) produces the same effect as in the above example. , it is necessary to set it high.
以上のように、この発明によれば被溶接材固定治具の溶
接用バックバーあるいはクランプ装置、もしくは溶接用
バックバーとクランプ装置の両方に加熱用ヒータを取り
付け、被溶接材突合せ部近傍の固定治具温度を５０〜３
００℃に制御できるようにしたので、銅あるいは銅合金
の熱伝導性にすぐれた被溶接材であっても実用レベルの
レーザ出力で、なおかつ高能率で高品質な溶接継手が得
られる効果がある。As described above, according to the present invention, a heater is attached to the welding back bar or the clamping device of the welding material fixing jig, or to both the welding back bar and the clamping device, and fixing the welding material near the butt part. jig temperature 50~3
Since it is possible to control the temperature to 00℃, it is possible to obtain high-quality welded joints with a practical level of laser output even when welding materials with excellent thermal conductivity such as copper or copper alloys. .
第１図はこの発明の一実施例を説明するための被溶接材
固定治具の正断面図、第２図、第３図はそれぞれ他の実
施例を説明するための被溶接材固定治具の正断面図、第
４図は従来の被溶接材固定治具の一部正断面図、第５図
、第６図はそねそれ第４図のＶ−Ｖ線およびＶｌ−Ｖｌ
線に沿う平面による断面図である。
（１１（２）・Φ被溶接材、（３）・・溶接用バツクバ
（６） （７）・・クランプ装置、（１１）（Ｉ２）（
１３）・・加熱ヒータ。
なお、
各図中、
同
符号は同−又は相当部分を
示す。FIG. 1 is a front sectional view of a welding material fixing jig for explaining one embodiment of the present invention, and FIGS. 2 and 3 are welding material fixing jigs for explaining other embodiments. FIG. 4 is a partial front sectional view of a conventional welding material fixing jig, and FIGS.
FIG. 3 is a cross-sectional view taken along a line. (11(2)・Φ Material to be welded, (3)・Welding back bar (6) (7)・Clamp device, (11)(I2)(
13)... Heater. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
でなる被溶接材の突き合わせ片側裏波レーザ溶接方法に
おいて、上記被溶接材の固定治具の少なくとも一部を５
０〜３００℃に加熱保持して溶接を行うことを特徴とす
るレーザ溶接方法。(1) In the butt one-sided Uranami laser welding method for a material to be welded made of a copper plate or copper alloy plate with a plate thickness of 0.7 to 2.0 mm, at least a part of the fixing jig for the material to be welded is
A laser welding method characterized by performing welding while heating and maintaining the temperature at 0 to 300°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066064A JPH02247091A (en) | 1989-03-20 | 1989-03-20 | Laser beam welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066064A JPH02247091A (en) | 1989-03-20 | 1989-03-20 | Laser beam welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02247091A true JPH02247091A (en) | 1990-10-02 |
Family
ID=13305052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1066064A Pending JPH02247091A (en) | 1989-03-20 | 1989-03-20 | Laser beam welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02247091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825725A (en) * | 1997-05-06 | 1998-10-20 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of The University Of Oregon | Method and apparatus for reversible optical data storage |
-
1989
- 1989-03-20 JP JP1066064A patent/JPH02247091A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825725A (en) * | 1997-05-06 | 1998-10-20 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of The University Of Oregon | Method and apparatus for reversible optical data storage |
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