CN85107767A - Laser welding method for bridge wire - Google Patents
Laser welding method for bridge wire Download PDFInfo
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- CN85107767A CN85107767A CN85107767.6A CN85107767A CN85107767A CN 85107767 A CN85107767 A CN 85107767A CN 85107767 A CN85107767 A CN 85107767A CN 85107767 A CN85107767 A CN 85107767A
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- wire
- lead
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- bridge
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Abstract
The invention provides a kind of laser welding method for bridge wire, to solve the welding of military priming system bridge silk and lead-in wire.This characteristic feature of an invention is to adopt laser bridge wire bond to connect, and has used two mutual weldments of bridge silk and lead-in wire metal material in addition at the solder joint place.This metal material is done intermediary layer and cover layer in laser weld.In some cases, can only do intermediary layer or cover layer.This method has extensive applicability in the bridge wire bond of military priming system connects.Realized the bridge wire laser welding of multiple lead-in wires such as copper, brass.The present invention also is suitable for 10
-2The laser weld of the filament of mm level, thin slice and heterotypic material.
Description
The present invention is the laser welding method for bridge wire in the technical field of laser processing.
The flatiron soldering is now adopted in welding between the bridge silk of military priming system and the lead-in wire.This welding exists problems such as quality of welding spot shakiness owing to be not molten mutually mutually between the weldment always.
In order to address this problem, the present invention adopts laser welding method for bridge wire.But in laser weld, the meticulous and copper lead material thermal conductivity height because of the bridge silk again, reflectance factor is big, and the boiling point of brass lead-in wire is low, is difficult to form good welding again, the fracture of wire phenomenon often occurs.In addition in laser weld, because the bridge silk attenuates and influenced the intensity of solder joint.
The objective of the invention is to provide a kind of effective bridge wire laser welding to send out method, this method not only makes meticulous bridge silk such as nickel chromium triangle, platinoiridita and copper, brass lead-in wire realize reliable laser weld at interior various lead-in wires, and improved quality of welding spot, solved the fracture of wire phenomenon in the welding effectively.
Invention is achieved in that adopts pulsed laser energy to weld.One or both metal materials beyond laser solder joint place uses two mutual weldments of bridge silk and lead-in wire.Elder generation is welded in the lead end face with a kind of middle dielectric material different with lead-in wire with laser, makes so just to have changed material character direct and that the bridge wire connection is touched, concerning lead-in wires such as copper, can reduce thermal conductivity, reflectivity.Concerning brass lead-in wire, avoided the adverse effect that welding caused because boiling point is low.Concerning some lead material, can solve the direct solderability of bridge silk and lead-in wire from structure.Afterwards, with the identical or different metal dust of topped and middle dielectric material above the bridge silk that middle dielectric material contacts, weld with pulse laser.The bridge silk under the protection of overcoat neither fracture of wire can form the sliding solder joint in reliable garden again.When the solderability of used lead-in wire is better, can only weld by middle dielectric material with overcoat.When fracture of wire was not subject matter, when not requiring the solder joint of better quality again, dielectric material in can only using welded without the overcoat material.Middle dielectric material and overcoat can be same materials, also can be different materials.Middle dielectric material or overcoat material can be same materials with the bridge silk that is welded, and also can be different materials.Middle dielectric material and overcoat can be simple metal, alloy, self-melting alloy, composite and the above-mentioned material that contains solvent.Intermediary layer and overcoat material can be Powdered, sheets, thread, hemispherical.In laser beam welding, bridge silk, lead-in wire and additional material are molten mutually.
The inventive method solved from 0.01mm begin 10
-2The laser weld of mm level bridge silk and 0.5mm or thicker lead-in wire.The bridge silk can be nickel chromium triangle, platinoiridita, tungsten etc.Lead-in wire can be compound wire, kovar of iron, nickel, stainless steel, copper, brass, copper core soft magnetic material foreskin etc.Weld pads quality stability is good in this way, is welded into the rate height, and little with the concrete material category correlation of lead-in wire, bridge silk.Be that bridge wire laser welds blanket method.The present invention can also be used for the big heterotypic material of filament and size difference and performance difference and carry out laser weld, filament can for 0.01mm rise 10
-2The various common filament of mm level, the profiled piece of weldering can be materials such as copper, aluminium, copper alloy, cast steel, iron, nickel, kovar mutually with it.The present invention also realized as thin as a wafer sheet metal and the laser weld of heterotypic material.As adopting metal dust topped, the solder joint place can obtain little rivet effect, has increased Joint Strength.
Inventive embodiment is as follows: the laser weld of electric cap nickel chromium triangle bridge silk (Φ 0.02mm) and copper lead-in wire (Φ 0.5mm).Adopt laser pulse spot welding, put into nickel chromium triangle borosilicate self-fluxing alloyed powder, do intermediary layer and overcoat.Earlier make powder thickness template with the 0.2mm blade, stay 0.2mm nickel chromium triangle borosilicate powder bed in the lead ends top with scraper plate, use the YAG pulse laser, 0.5 joule arteries and veins energy welding makes powder be welded in the termination of copper lead-in wire, forms intermediary layer, after applying the bridge silk, in kind spread out the powder bed of the same material of 0.2mm, with 0.2 joule of pulse laser welding, promptly form solder joint again.
Claims (8)
1, a kind of bridge wire welding method, the flatiron soldering is adopted in the welding between military priming system bridge silk and the lead-in wire, and feature of the present invention is: pulse laser spot welding is adopted in the welding between bridge silk and the lead-in wire.
2, a kind of method that matches with claim 1, the pulse laser spot welding of military priming system bridge silk and lead-in wire is to make the directly molten mutually solder joint that forms of bridge silk and two mutual weldments of lead-in wire with laser energy.Feature of the present invention is: used mutual weldment metal material in addition at laser solder joint place.
3, method according to claim 2 is characterized in that mutual weldment metal material in addition when welding, is used to do middle dielectric material between the two mutual weldments.
4, method according to claim 2 is characterized in that metal material beyond the mutual weldment is topped when welding to do overcoat on the bridge silk.
5,, it is characterized in that metal material beyond the mutual weldment can be simple metal material, alloy material, composite, self-melting alloy material and the above-mentioned material that contains solvent according to claim 2,3 or 4 described methods.
6, method according to claim 2 is characterized in that the metal material beyond the mutual weldment can be Powdered, sheet condition, thread, hemispherical.
7, method according to claim 2 is characterized in that the material that the bridge silk uses can be nickel filament, platinoiridita silk or tungsten filament.
8, method according to claim 2 is characterized in that the lead material that uses can be copper, brass, aluminium, iron, nickel, stainless steel or kovar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107767.6A CN1004681B (en) | 1985-10-15 | 1985-10-15 | Laser welding method for bridge wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107767.6A CN1004681B (en) | 1985-10-15 | 1985-10-15 | Laser welding method for bridge wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85107767A true CN85107767A (en) | 1987-04-15 |
| CN1004681B CN1004681B (en) | 1989-07-05 |
Family
ID=4795764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85107767.6A Expired CN1004681B (en) | 1985-10-15 | 1985-10-15 | Laser welding method for bridge wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004681B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017617A (en) * | 2011-09-20 | 2013-04-03 | 北京北方邦杰科技发展有限公司 | Ignition circuit board and ignition member containing ignition circuit board |
| CN103624405A (en) * | 2013-12-02 | 2014-03-12 | 宁波唯尔激光科技有限公司 | Double-medium laser welding device and double-medium laser welding method |
| US9272368B2 (en) | 2012-07-18 | 2016-03-01 | Emerson Climate Technologies Gmbh | Method of joining two components using a welding process |
| CN111250867A (en) * | 2020-03-04 | 2020-06-09 | 北京凯米迈克科技有限公司 | Stepping type laser welding device for welding resistance wires |
| CN113118580A (en) * | 2021-03-25 | 2021-07-16 | 四川仲玛智造科技有限公司 | Welding equipment for producing electric ignition head support |
| CN114571075A (en) * | 2022-03-17 | 2022-06-03 | 中国工程物理研究院核物理与化学研究所 | Welding method for miniature fission chamber signal outgoing line |
-
1985
- 1985-10-15 CN CN85107767.6A patent/CN1004681B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017617A (en) * | 2011-09-20 | 2013-04-03 | 北京北方邦杰科技发展有限公司 | Ignition circuit board and ignition member containing ignition circuit board |
| US9272368B2 (en) | 2012-07-18 | 2016-03-01 | Emerson Climate Technologies Gmbh | Method of joining two components using a welding process |
| CN103624405A (en) * | 2013-12-02 | 2014-03-12 | 宁波唯尔激光科技有限公司 | Double-medium laser welding device and double-medium laser welding method |
| CN111250867A (en) * | 2020-03-04 | 2020-06-09 | 北京凯米迈克科技有限公司 | Stepping type laser welding device for welding resistance wires |
| CN111250867B (en) * | 2020-03-04 | 2024-06-04 | 北京凯米迈克科技有限公司 | Step-by-step laser welding device for welding resistance wire |
| CN113118580A (en) * | 2021-03-25 | 2021-07-16 | 四川仲玛智造科技有限公司 | Welding equipment for producing electric ignition head support |
| CN114571075A (en) * | 2022-03-17 | 2022-06-03 | 中国工程物理研究院核物理与化学研究所 | Welding method for miniature fission chamber signal outgoing line |
| CN114571075B (en) * | 2022-03-17 | 2023-05-05 | 中国工程物理研究院核物理与化学研究所 | Welding method of miniature fission chamber signal outgoing line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004681B (en) | 1989-07-05 |
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