CN102319957A - A kind of method for laser welding that is applied in the contactor in the harness repairing - Google Patents
A kind of method for laser welding that is applied in the contactor in the harness repairing Download PDFInfo
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- CN102319957A CN102319957A CN201110260817A CN201110260817A CN102319957A CN 102319957 A CN102319957 A CN 102319957A CN 201110260817 A CN201110260817 A CN 201110260817A CN 201110260817 A CN201110260817 A CN 201110260817A CN 102319957 A CN102319957 A CN 102319957A
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- laser
- optical gate
- harness
- contactor
- repairing
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Abstract
A kind of method for laser welding that is applied in the contactor in the harness repairing belongs to the engine overhaul technical field.The present invention includes following steps: confirm the technological parameter of laser weld, absolute coordinate is set, close optical gate, block laser; Go out laser, time-delay waits for that beam quality is stable, opens optical gate, rotates with angular speed; Carry out linear interpolation, close optical gate, return initial point.
Description
Technical field
The invention belongs to the engine overhaul technical field, particularly relate to a kind of method for laser welding that is applied in the contactor in the harness repairing.
Background technology
Harness is assemblied on the aero-engine main frame, is the significant components of aero-engine electrical system.In repair procedures; Because defective pending a large amount of the overstocking of harness of causing with other fault of dielectric strength, but because of repair capability is not enough, especially contactor position Weldability is not enough; Fail that always harness integral body is carried out the degree of depth and repair, cause the waste of resource.
The processing of laser weld and traditional mechanical has relatively that process velocity is fast, thermal deformation and the heat affected area is little, processing noiselessness, environmentally safe, can be to advantages such as the part of complicated shape and small process.And the contactor portion size of harness is little, and selecting laser weld for use is optimal selection.
Summary of the invention
To the deficiency that prior art exists, the present invention provides a kind of method for laser welding that is applied in the contactor in the harness repairing.
To achieve these goals, the present invention adopts following technical scheme, and a kind of method for laser welding that is applied in the contactor in the harness repairing comprises the steps:
Step 1: the technological parameter of confirming laser weld;
Step 2: absolute coordinate is set;
Step 3: close optical gate, block laser;
Step 4: go out laser;
Step 5: time-delay, wait for that beam quality is stable;
Step 6: open optical gate;
Step 7: rotate with angular speed;
Step 8: carry out linear interpolation;
Step 9: close optical gate;
Step 10: return initial point.
Technological parameter described in the step 1 is following: electric current 250～300A, and pulsewidth 6～10ms, frequency 1Hz, argon gas 4～6L/min, height 22～28mm delays time 3000～4000 milliseconds.
Beneficial effect of the present invention:
It has been the main production task of my company that aero-engine is repaired at present, and harness is the significant components of electrical system.Through welding to two harness contactors, verified the correct of welding method of the present invention, solved a puzzlement difficult problem for many years.At present, brought back to life the harness of scrapping in a large number through using welding method of the present invention, can in time solve failure problems, stopped hidden danger of quality, satisfied and repair matching requirements, effect is stable.
Description of drawings
Fig. 1 is the structural representation of contactor before the welding;
Fig. 2 is the structural representation of welding back contactor;
Fig. 3 is the process chart of welding method of the present invention;
Among the figure, the 1-contactor.
The specific embodiment
A kind of method for laser welding that is applied in the contactor in the harness repairing comprises the steps:
Step 1: confirm the technological parameter of laser weld, described technological parameter is following: electric current 280A, and pulsewidth 8ms, frequency 1Hz, argon gas 5L/min, height 25mm delays time 3500 milliseconds;
Step 2: absolute coordinate is set is (0,0);
Step 3: close optical gate, block laser;
Step 4: go out laser;
Step 5: delay time 3500 milliseconds, wait for that beam quality is stable;
Step 6: open optical gate;
Step 7: with angular speed rotation 2 degree/seconds 370 degree;
Step 8: arrive (0.3,0) with 0.2 mm/second linear interpolation;
Step 9: close optical gate;
Step 10: return initial point with 0.4 mm/second.
Through experiment proof: frequency be 3Hz, pulsewidth be 0.1ms, when electric current is 200A, welding energy is little; Frequency be 1Hz, pulsewidth be 1ms, when electric current is 400A, energy is excessive; Frequency be 1Hz, pulsewidth be 1ms, when electric current is 150A, weld seam is narrower; When frequency be 1Hz, pulsewidth be 6ms, electric current be 260A, when argon gas is 2.6L/min, the part weld seam has the blackout phenomenon; When frequency be 1Hz, pulsewidth be 6ms, when electric current is 250A; The part weld seam is not black; But weld seam is not obvious ..., after the accumulating experience gradually, find: frequency be 1Hz, argon flow amount be 4～6L/min, electric current between 250～300A, pulsewidth between 6～8ms the time weldquality relatively good.Simultaneously, welding quality is also relevant apart from the height of laser exit with part rotating speed, part, and we have done many experiments again to this, finds that rotating speed is proper at 3500～4000 rev/mins.
We take different parameters to weld 6 harness contactors, and the experimental piece of postwelding is carried out pull test, and situation sees the following form:
Can be known by last table: the disconnection pulling force of sequence number 2 is 895N, is optimal selection.
The disconnection pulling force of stipulating in the Russian file that design department provides is 615N.Can find out that from last table these testpieces welding qualities are better, most of more than 780N, the maximum 895N of pulling force especially is considerably beyond setting.
Claims (3)
1. a method for laser welding that is applied in the contactor in the harness repairing is characterized in that, comprises the steps:
Step 1: the technological parameter of confirming laser weld;
Step 2: absolute coordinate is set;
Step 3: close optical gate, block laser;
Step 4: go out laser;
Step 5: time-delay, wait for that beam quality is stable;
Step 6: open optical gate;
Step 7: rotate with angular speed;
Step 8: carry out linear interpolation;
Step 9: close optical gate;
Step 10: return initial point.
2. a kind of method for laser welding that is applied in the contactor in the harness repairing according to claim 1; It is characterized in that the technological parameter described in the step 1 is following: electric current 250～300A; Pulsewidth 6～10 ms, frequency 1 Hz, argon gas 4～6 L/min; Height 22～28 mm delay time 3000～4000 milliseconds.
3. a method for laser welding that is applied in the contactor in the harness repairing is characterized in that, comprises the steps:
Step 1: confirm the technological parameter of laser weld, described technological parameter is following: electric current 280A, and pulsewidth 8 ms, frequency 1 Hz, argon gas 5 L/min, height 25mm delays time 3500 milliseconds;
Step 2: absolute coordinate is set is (0,0);
Step 3: close optical gate, block laser;
Step 4: go out laser;
Step 5: delay time 3500 milliseconds, wait for that beam quality is stable;
Step 6: open optical gate;
Step 7: with angular speed rotation 2 degree/seconds 370 degree;
Step 8: arrive (0.3,0) with 0.2 mm/second linear interpolation;
Step 9: close optical gate;
Step 10: return initial point with 0.4 mm/second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260817A CN102319957A (en) | 2011-09-05 | 2011-09-05 | A kind of method for laser welding that is applied in the contactor in the harness repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260817A CN102319957A (en) | 2011-09-05 | 2011-09-05 | A kind of method for laser welding that is applied in the contactor in the harness repairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102319957A true CN102319957A (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110260817A Pending CN102319957A (en) | 2011-09-05 | 2011-09-05 | A kind of method for laser welding that is applied in the contactor in the harness repairing |
Country Status (1)
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| CN (1) | CN102319957A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060069466A1 (en) * | 2004-09-29 | 2006-03-30 | Tetsuaki Kato | Method for controlling trajectory of robot |
| US20090179021A1 (en) * | 2008-01-15 | 2009-07-16 | Kabushiki Kaisha Kobe Seiko Sho | Welding robot |
| CN102059435A (en) * | 2010-12-14 | 2011-05-18 | 东南大学 | Longitudinal seam welding special machine with linear structure light type vision sensor and control method thereof |
| CN102123818A (en) * | 2008-06-28 | 2011-07-13 | 通快机床两合公司 | Method for eccentrically orienting a laser cutting beam in relation to a nozzle axis and for cutting at an angle, corresponding laser machining head and laser machining tool |
-
2011
- 2011-09-05 CN CN201110260817A patent/CN102319957A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060069466A1 (en) * | 2004-09-29 | 2006-03-30 | Tetsuaki Kato | Method for controlling trajectory of robot |
| US20090179021A1 (en) * | 2008-01-15 | 2009-07-16 | Kabushiki Kaisha Kobe Seiko Sho | Welding robot |
| CN101486123A (en) * | 2008-01-15 | 2009-07-22 | 株式会社神户制钢所 | Welding robot |
| CN102123818A (en) * | 2008-06-28 | 2011-07-13 | 通快机床两合公司 | Method for eccentrically orienting a laser cutting beam in relation to a nozzle axis and for cutting at an angle, corresponding laser machining head and laser machining tool |
| CN102059435A (en) * | 2010-12-14 | 2011-05-18 | 东南大学 | Longitudinal seam welding special machine with linear structure light type vision sensor and control method thereof |
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Application publication date: 20120118 |