JPH0659556B2 - Welding method of contact material - Google Patents
Welding method of contact materialInfo
- Publication number
- JPH0659556B2 JPH0659556B2 JP63259175A JP25917588A JPH0659556B2 JP H0659556 B2 JPH0659556 B2 JP H0659556B2 JP 63259175 A JP63259175 A JP 63259175A JP 25917588 A JP25917588 A JP 25917588A JP H0659556 B2 JPH0659556 B2 JP H0659556B2
- Authority
- JP
- Japan
- Prior art keywords
- contact material
- welding
- contact
- gap
- laser beam
- 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
- 239000000463 material Substances 0.000 title claims description 44
- 238000003466 welding Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 230000001678 irradiating effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0087—Welding switch parts by use of a laser beam
Landscapes
- Laser Beam Processing (AREA)
- Manufacture Of Switches (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は接点材料の溶接方法、特に板バネ材等から成り
リレーやスイッチ等に用いられる金属薄板に導電性良好
な接点材料を溶接する方法に関する。The present invention relates to a method for welding a contact material, in particular, a method for welding a contact material having good conductivity to a thin metal plate made of a leaf spring material or the like and used for a relay or a switch. Regarding
（従来の技術） 開閉器やしゃ断器等の電路開閉装置に用いられる接点を
レーザ溶接等により基板に接合する手段として、従来、
例えば特開昭57-69628号公報記載の技術が知られてい
る。この従来技術によれば、第４図に示されるように、
タングステン系合金からなる接点１１と銅部材からなる
導電軸１２とを隙間を介して対向させ、この隙間にビー
ム溶接機またはレーザ溶接機１３からビーム１４を照射
して接合部１５を溶融させ、一体化するというものであ
る。(Prior Art) Conventionally, as a means for joining a contact used in an electric circuit switchgear such as a switch or a circuit breaker to a substrate by laser welding,
For example, the technique described in JP-A-57-69628 is known. According to this conventional technique, as shown in FIG.
The contact 11 made of a tungsten-based alloy and the conductive shaft 12 made of a copper member are opposed to each other through a gap, and a beam 14 is irradiated from the beam welder or the laser welder 13 into the gap to melt the joint portion 15 to integrally form the beam. It is to turn into.
（発明が解決しようとする課題） しかし、前述した従来の溶接手段によると、隙間が開放
状態となっているためレーザ光線によるエネルギが集中
化せず、溶け込みが浅くなって接合部１５の安定性に欠
けたり、また接点１１と導電軸１２との間の隙間の調整
および管理が煩雑である等の問題があった。(Problems to be Solved by the Invention) However, according to the above-described conventional welding means, since the gap is in the open state, the energy due to the laser beam is not concentrated, the penetration becomes shallow, and the stability of the joint portion 15 is improved. However, there is a problem in that the gap between the contact point 11 and the conductive shaft 12 is complicated to adjust and manage.
一方、板バネ等から成る金属薄板に銀や銅等の接点材料
を溶接する場合に、そのままレーザ光線を溶接部に照射
しようとすると、これら板バネ材料や銀、銅等はレーザ
光線に対して反射率が高く、かつ熱伝導性が良いため
に、溶接に必要な熱が溶接部分に蓄積されにくいという
問題があった。On the other hand, when welding a contact material such as silver or copper to a thin metal plate made of a leaf spring or the like, if the laser beam is radiated to the welded portion as it is, the leaf spring material, silver, copper or the like will not be exposed to the laser beam. Since the reflectance is high and the thermal conductivity is good, there is a problem that the heat required for welding is hard to be accumulated in the welded portion.
この発明は斯る課題を解決するためになされたもので、
その目的とするところは、レーザ光線に対する反射率の
高い材料であっても溶接に必要な熱が効率良く加えられ
るとともに、信頼性の高い深い溶け込み状態の溶接を得
ることのできる溶接方法を提供することにある。The present invention has been made to solve the above problems,
The purpose thereof is to provide a welding method capable of efficiently providing heat necessary for welding even with a material having a high reflectance to a laser beam and obtaining a highly reliable deep-penetration weld. Especially.
（課題を解決するための手段） 前記目的を達成するために、本発明は、接点材料の一端
を金属薄板に接触させるとともに他端に隙間を形成する
ように傾斜配置し、この隙間にレーザ光線を照射させな
がら接点材料と金属薄板とを相対的に接近させ、前記接
点材料と金属薄板とを溶接することを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is arranged such that one end of a contact material is brought into contact with a thin metal plate and a gap is formed at the other end, and a laser beam is provided in this gap. The contact material and the metal thin plate are relatively brought close to each other while irradiating with, and the contact material and the metal thin plate are welded.
（作 用） 前記構成により、本発明方法によれば、金属薄板からな
る基板に接点材料を溶接して一体化する場合に、接点材
料を傾斜配置して一端を金属薄板に接触させ他端に隙間
を形成させて、この隙間にレーザ光線を照射することに
より、レーザ光線が隙間内で多重反射されながら隙間内
に閉じ込められる。このため、レーザ光線に対する反射
率の高い材料であっても、溶接に必要な熱がこれらの材
料に効率良く加えられ溶接が用意に行われる。(Operation) According to the method of the present invention, according to the method of the present invention, when the contact material is integrated with the substrate made of a thin metal plate by arranging the contact material in an inclined manner, one end is brought into contact with the thin metal plate and the other end is contacted. By forming a gap and irradiating the gap with a laser beam, the laser beam is confined in the gap while being multiply reflected in the gap. Therefore, even if the material has a high reflectance with respect to the laser beam, the heat necessary for welding is efficiently applied to these materials and the welding is easily performed.
この場合、溶接と同時または溶接直後に接点材料と金属
薄板とを相対的に接近させることにより、溶融箇所が接
点材料の接触側一端から開放側他端に向け順次に移動す
ることになるので、広面積の溶接が可能となる利点を有
する。In this case, by bringing the contact material and the metal thin plate relatively close to each other at the same time as or immediately after the welding, the melting point is sequentially moved from the contact side one end of the contact material to the open side other end, It has an advantage that welding over a wide area is possible.
（実施例） 以下、図面に基づき本発明の好適な実施例を説明する。(Examples) Hereinafter, preferred examples of the present invention will be described with reference to the drawings.
第１図〜第３図には本発明方法による接点材料の溶接例
が示されている。1 to 3 show welding examples of contact materials by the method of the present invention.
本発明の特徴的なことは、接点材料の一端を金属薄板に
接触させるとともに他端に隙間を形成するように傾斜配
置し、この隙間にレーザ光線を照射させながら接点材料
と金属薄板とを相対的に接近させ、これらを溶接するよ
うにしたことである。A feature of the present invention is that one end of the contact material is placed in contact with the metal thin plate and the other end is inclined so as to form a gap, and the contact material and the metal thin plate are opposed to each other while irradiating the gap with a laser beam. They are made to come close to each other and they are welded.
すなわち、本実施例において、第１図に示されるよう
に、銀等から成る接点材料１と銅板等の金属薄板２との
成す角度θが３０゜以下となるように接点材料１が傾斜
配置されており、接点材料１の一端１ａ側は金属薄板２
に接触され、他端１ｂ側は開放されて接点材料１と金属
薄板２との間に隙間３が形成されている。そして、この
隙間３に横方向からレーザ溶接機（図示せず）によりレ
ーザ光線４が照射される。That is, in this embodiment, as shown in FIG. 1, the contact material 1 is inclined so that the angle θ formed by the contact material 1 made of silver or the like and the metal thin plate 2 such as a copper plate is 30 ° or less. And one end 1a side of the contact material 1 is a thin metal plate 2
And the other end 1b side is opened to form a gap 3 between the contact material 1 and the thin metal plate 2. Then, the laser beam 4 is applied to the gap 3 from the lateral direction by a laser welding machine (not shown).
このとき照射されたレーザ光線４は、接点材料１の一端
１ａ側が閉じられているため、接点材料１と金属薄板２
との間で多重反射を繰り返しながらこの隙間３内の閉じ
込められることになる。このため、接点材料１や金属薄
板２が例えばレーザ光線４に対する反射率の高い材料で
あったとしても、これらの材料には溶接に必要な熱が効
率的に加えられ深い溶け込みの溶接が得られる。The laser beam 4 irradiated at this time is closed at one end 1a side of the contact material 1, so that the contact material 1 and the metal thin plate 2 are
It will be confined in the gap 3 while repeating multiple reflections between and. Therefore, even if the contact material 1 and the thin metal plate 2 are materials having a high reflectance with respect to the laser beam 4, for example, heat necessary for welding is efficiently applied to these materials and deep penetration welding can be obtained. .
従って、第２図に示されるように、照射されたレーザ光
線４のエネルギによって、まず接点材料１の一端１ａ側
において接点材料１と金属薄板２との間で溶融(5)を開
始する。そして、この溶融と同時または溶融直後に、適
宜の手段により接点材料１と金属薄板２とを相対的に接
近させることにより、溶融部５が接点材料１の一端１ａ
側から開放側他端１ｂに向け順次に移動して行くことに
なる。Therefore, as shown in FIG. 2, the energy of the irradiated laser beam 4 first starts melting (5) between the contact material 1 and the thin metal plate 2 on the side of the one end 1a of the contact material 1. Simultaneously with or immediately after the melting, the contact material 1 and the thin metal plate 2 are brought relatively close to each other by an appropriate means, so that the melted portion 5 has one end 1a of the contact material 1.
From the side to the other end 1b on the open side, it is sequentially moved.
次に、第３図に示されるように、接点材料１の他端１ｂ
が金属薄板２に密着した時点で両者が完全に溶接され、
このようにして広面積な溶接が行われる。Next, as shown in FIG. 3, the other end 1b of the contact material 1
When they come into close contact with the thin metal plate 2, they are completely welded,
In this way, wide area welding is performed.
（発明の効果） この発明は以上説明した通り、接点材料の一端を金属薄
板に接触させるとともに他端に隙間を形成するように傾
斜配置し、この隙間にレーザ光線を照射させながら接点
材料と金属薄板とを相対的に接近させ、前記接点材料と
金属薄板とを溶接することにより、レーザ光線に対する
反射率の高い材料であっても溶接に必要な熱がこれらに
効果的に加えられ、また、溶融部が隙間の奥から手前に
向って順次移動することになるため、広面積の溶接が可
能となる。(Effects of the Invention) As described above, the present invention is arranged so that one end of a contact material is brought into contact with a thin metal plate and a gap is formed at the other end, and the contact material and the metal are irradiated while irradiating the gap with a laser beam. By making the thin plate relatively close to each other and welding the contact material and the metal thin plate, the heat necessary for welding is effectively added to these even if the material has a high reflectance to the laser beam, and Since the fusion zone moves sequentially from the depth of the gap toward the front, wide area welding is possible.
第１図〜第３図は本発明方法による接点材料の溶接例を
示す図、第４図は従来の接点の溶接方法を示す図であ
る。 １……接点材料、２……金属薄板、３……隙間、４……
レーザ光線、５……溶融部。1 to 3 are views showing welding examples of contact materials by the method of the present invention, and FIG. 4 is a view showing a conventional contact welding method. 1 ... Contact material, 2 ... Metal thin plate, 3 ... Gap, 4 ...
Laser beam, 5 ... Melting part.
Claims (1)
ともに他端に隙間を形成するように傾斜配置し、この隙
間にレーザ光線を照射させながら接点材料と金属薄板と
を相対的に接近させ、前記接点材料と金属薄板とを溶接
することを特徴とした接点材料の溶接方法。1. A contact material is slanted so that one end of the contact material is brought into contact with a metal thin plate and a gap is formed at the other end, and the contact material and the metal thin plate are relatively brought close to each other while irradiating a laser beam to the gap. A method for welding a contact material, comprising welding the contact material and a thin metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63259175A JPH0659556B2 (en) | 1988-10-14 | 1988-10-14 | Welding method of contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63259175A JPH0659556B2 (en) | 1988-10-14 | 1988-10-14 | Welding method of contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02108481A JPH02108481A (en) | 1990-04-20 |
| JPH0659556B2 true JPH0659556B2 (en) | 1994-08-10 |
Family
ID=17330403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63259175A Expired - Fee Related JPH0659556B2 (en) | 1988-10-14 | 1988-10-14 | Welding method of contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659556B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208409B (en) * | 2017-06-30 | 2021-03-26 | 比亚迪股份有限公司 | Straddle type single track switch beam and its manufacturing method |
-
1988
- 1988-10-14 JP JP63259175A patent/JPH0659556B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02108481A (en) | 1990-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |