CN106735968A - A kind of laser electrical arc complex welding method - Google Patents
A kind of laser electrical arc complex welding method Download PDFInfo
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- CN106735968A CN106735968A CN201611097138.3A CN201611097138A CN106735968A CN 106735968 A CN106735968 A CN 106735968A CN 201611097138 A CN201611097138 A CN 201611097138A CN 106735968 A CN106735968 A CN 106735968A
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- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
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Abstract
The invention discloses a kind of laser electrical arc complex welding method, the method is comprised the following steps：S1：Workpiece surface treatment；S2：Open up welding groove；S3：Connection arc-welding equipment；S4：Start laser welding apparatus；S5：Water spray quenching treatment；S6：Weld seam treatment.The present invention using laser and electric arc by way of meeting welding, the solidification in molten bath can be delayed, valuable time is provided for technician carries out operation, and because molten bath delays solidification, it is prevented from welding rod and melts excessive, it is easy to connect two soldered workpiece, after so welding, it is firmer, workpiece is processed by way of using fluting, molten bath can be made to be filled in welding groove, so as to reduce the volume in molten bath, the metal of redundancy on the outside of weld seam is reduced, so that face of weld is smooth, therefore more durable and reduction corrosion.
Description
Technical field
The present invention relates to welding procedure field, specially a kind of laser electrical arc complex welding method.
Background technology
There is following defect in existing Arc Welding Process：1. molten bath easily quickly cools down during welding, causes
Welding is not firm；2. because the time requirement welded is very high, operation is somewhat slow, may result in welding rod and melts excessive, molten bath
It is excessive, waste of materials is both caused, weld out-of-flatness is caused again；3. the weld seam after welding is uneven, not firm, and by
It is larger in surface area, easily it is corroded.
The content of the invention
It is an object of the invention to provide a kind of laser electrical arc complex welding method, to solve to be proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of laser electrical arc complex welding method, the method
Comprise the following steps：
S1：Workpiece surface treatment：Polished using sand paper on the top layer of welding workpiece, removed the impurity on surface, be then coated with
One layer of welding protective liquid, is protected；
S2：Open up welding groove：Welding groove is cut out on the surface of workpiece using cutting machine, then one layer of brush welds protective liquid again,
Stand 5-10 minutes；
S3：Connection arc-welding equipment：The power supply of arc-welding equipment is disconnected, the negative electrode welding rod of arc-welding equipment is electrical
Connection, the anode of arc-welding equipment and workpiece are electrically connected with；
S4：Start laser welding apparatus：Workpiece to be welded is aligned with welding groove, the welding rod for then connecting previous step and
Workpiece carries out examination and touches in the welding groove port position for opening up, and after electric arc to be generated, welding rod is left into 1-2 centimetres of workpiece, then
Contact release electric arc is carried out again, and each time of contact control made welding rod along welding groove to another at 1-3 seconds during contact
One end is moved, and while arc welding taps into row, opens laser welding apparatus, and control laser beam follows the position of electric arc to move,
When welding rod moves to welding groove end, the power supply of arc-welding equipment and the power supply of laser welding apparatus are closed；
S5：Water spray quenching treatment：When previous step closes to an end, sprayer is opened, after welding process terminates, use spraying
Device carries out misting cooling to the position of welding groove, processes 1-3 minutes, and sprayer is closed afterwards；
S6：Weld seam treatment：The coating for welding rooved face is knocked out using hammer, reuse grinding apparatus is carried out to the both sides of weld seam
Polishing, disposes after the bead sputtered out in welding process, then carries out anti-corrosion treatment on surface.
2. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：In the step S1
Workpiece surface is polished using the sand paper of M7 first, the sand paper for then reusing M1.5 carries out fine grinding.
Preferably, the section of welding groove is in V-shape, or U-shaped in the step S2.
Preferably, the welding protective liquid composition for being used in the step S1 and S2 is：Cupric oxide powder 20%, aluminium powder 10%, matter
Amount concentration is 12% watery hydrochloric acid 50%, rosin powder 20%.
Preferably, in the step S4 in welding, welding rod and laser beam keep inclining during welding, inclination angle
Degree should be equal, is 70-80 degree, and welding rod and laser beam tilt angle control errors within 10 degree.
Preferably, in the step S6 using anti-corrosion treatment using plating by the way of or spray painting mode.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention meets welding by using laser and electric arc
Mode, can delay the solidification in molten bath, and valuable time is provided for technician carries out operation, and because molten bath delays admittedly
Change, be prevented from welding rod and melt excessive, be easy to connect two soldered workpiece, it is firmer after so welding, by adopting
Workpiece is processed with the mode of fluting, molten bath can be made to be filled in welding groove, so as to reduce the volume in molten bath, reduce weldering
The metal of seam outside redundancy, so that face of weld is smooth, therefore more durable and reduction corrosion.
Specific embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
Embodiment one
The present invention provides a kind of technical scheme：A kind of laser electrical arc complex welding method, the method is comprised the following steps：
S1：Workpiece surface treatment：Polished using sand paper on the top layer of welding workpiece, removed the impurity on surface, be then coated with
One layer of welding protective liquid, is protected；
S2：Open up welding groove：Welding groove is cut out on the surface of workpiece using cutting machine, then one layer of brush welds protective liquid again,
Stand 5 minutes；
S3：Connection arc-welding equipment：The power supply of arc-welding equipment is disconnected, the negative electrode welding rod of arc-welding equipment is electrical
Connection, the anode of arc-welding equipment and workpiece are electrically connected with；
S4：Start laser welding apparatus：Workpiece to be welded is aligned with welding groove, the welding rod for then connecting previous step and
Workpiece carries out examination and touches in the welding groove port position for opening up, and after electric arc to be generated, welding rod is left into 1 centimetre of workpiece, Ran Houzai
Contact release electric arc is carried out, each time of contact control made welding rod along welding groove to the other end at 1 second during contact
It is mobile, while arc welding taps into row, laser welding apparatus are opened, control laser beam follows the position of electric arc to move, works as weldering
When bar moves to welding groove end, the power supply of arc-welding equipment and the power supply of laser welding apparatus are closed；
S5：Water spray quenching treatment：When previous step closes to an end, sprayer is opened, after welding process terminates, use spraying
Device carries out misting cooling to the position of welding groove, processes 1.5 minutes, and sprayer is closed afterwards；
S6：Weld seam treatment：The coating for welding rooved face is knocked out using hammer, reuse grinding apparatus is carried out to the both sides of weld seam
Polishing, disposes after the bead sputtered out in welding process, then carries out anti-corrosion treatment on surface.
Wherein, workpiece surface is polished using the sand paper of M7 first in step S1, the sand paper for then reusing M1.5 enters
Row fine grinding.The section of welding groove is in V-shape, or U-shaped in step S2.The welding protective liquid composition used in step S1 and S2
For：Cupric oxide powder 20%, the watery hydrochloric acid 50%, rosin powder 20% that aluminium powder 10%, mass concentration is 12%.In step S4 in welding,
Welding rod and laser beam keep inclining during welding, and angle of inclination should be equal, is 70 degree, and welding rod and laser beam incline
The control errors at angle are within 10 degree.In step S6 using anti-corrosion treatment using plating by the way of.
Embodiment two
The present invention provides a kind of technical scheme：A kind of laser electrical arc complex welding method, the method is comprised the following steps：
S1：Workpiece surface treatment：Polished using sand paper on the top layer of welding workpiece, removed the impurity on surface, be then coated with
One layer of welding protective liquid, is protected；
S2：Open up welding groove：Welding groove is cut out on the surface of workpiece using cutting machine, then one layer of brush welds protective liquid again,
Stand 8 minutes；
S3：Connection arc-welding equipment：The power supply of arc-welding equipment is disconnected, the negative electrode welding rod of arc-welding equipment is electrical
Connection, the anode of arc-welding equipment and workpiece are electrically connected with；
S4：Start laser welding apparatus：Workpiece to be welded is aligned with welding groove, the welding rod for then connecting previous step and
Workpiece carries out examination and touches in the welding groove port position for opening up, and after electric arc to be generated, welding rod is left into 1.5 centimetres of workpiece, then
Contact release electric arc is carried out again, and each time of contact control made welding rod along welding groove to another at 2 seconds during contact
End movement, while arc welding taps into row, opens laser welding apparatus, and control laser beam follows the position of electric arc to move, when
When welding rod moves to welding groove end, the power supply of arc-welding equipment and the power supply of laser welding apparatus are closed；
S5：Water spray quenching treatment：When previous step closes to an end, sprayer is opened, after welding process terminates, use spraying
Device carries out misting cooling to the position of welding groove, processes 2 minutes, and sprayer is closed afterwards；
S6：Weld seam treatment：The coating for welding rooved face is knocked out using hammer, reuse grinding apparatus is carried out to the both sides of weld seam
Polishing, disposes after the bead sputtered out in welding process, then carries out anti-corrosion treatment on surface.
Wherein, workpiece surface is polished using the sand paper of M7 first in step S1, the sand paper for then reusing M1.5 enters
Row fine grinding.The section of welding groove is in V-shape, or U-shaped in step S2.The welding protective liquid composition used in step S1 and S2
For：Cupric oxide powder 20%, the watery hydrochloric acid 50%, rosin powder 20% that aluminium powder 10%, mass concentration is 12%.In step S4 in welding,
Welding rod and laser beam keep inclining during welding, and angle of inclination should be equal, is 75 degree, and welding rod and laser beam incline
The control errors at angle are within 10 degree.In step S6 using anti-corrosion treatment using spray painting by the way of.
Embodiment three
The present invention provides a kind of technical scheme：A kind of laser electrical arc complex welding method, the method is comprised the following steps：
S1：Workpiece surface treatment：Polished using sand paper on the top layer of welding workpiece, removed the impurity on surface, be then coated with
One layer of welding protective liquid, is protected；
S2：Open up welding groove：Welding groove is cut out on the surface of workpiece using cutting machine, then one layer of brush welds protective liquid again,
Stand 10 minutes；
S3：Connection arc-welding equipment：The power supply of arc-welding equipment is disconnected, the negative electrode welding rod of arc-welding equipment is electrical
Connection, the anode of arc-welding equipment and workpiece are electrically connected with；
S4：Start laser welding apparatus：Workpiece to be welded is aligned with welding groove, the welding rod for then connecting previous step and
Workpiece carries out examination and touches in the welding groove port position for opening up, and after electric arc to be generated, welding rod is left into 2 centimetres of workpiece, Ran Houzai
Contact release electric arc is carried out, each time of contact control made welding rod along welding groove to the other end at 3 seconds during contact
It is mobile, while arc welding taps into row, laser welding apparatus are opened, control laser beam follows the position of electric arc to move, works as weldering
When bar moves to welding groove end, the power supply of arc-welding equipment and the power supply of laser welding apparatus are closed；
S5：Water spray quenching treatment：When previous step closes to an end, sprayer is opened, after welding process terminates, use spraying
Device carries out misting cooling to the position of welding groove, processes 3 minutes, and sprayer is closed afterwards；
S6：Weld seam treatment：The coating for welding rooved face is knocked out using hammer, reuse grinding apparatus is carried out to the both sides of weld seam
Polishing, disposes after the bead sputtered out in welding process, then carries out anti-corrosion treatment on surface.
Wherein, workpiece surface is polished using the sand paper of M7 first in step S1, the sand paper for then reusing M1.5 enters
Row fine grinding.The section of welding groove is in V-shape, or U-shaped in step S2.The welding protective liquid composition used in step S1 and S2
For：Cupric oxide powder 20%, the watery hydrochloric acid 50%, rosin powder 20% that aluminium powder 10%, mass concentration is 12%.In step S4 in welding,
Welding rod and laser beam keep inclining during welding, and angle of inclination should be equal, is 80 degree, and welding rod and laser beam incline
The control errors at angle are within 10 degree.In step S6 using anti-corrosion treatment using plating by the way of or spray painting mode.
Contrast test is carried out to above-mentioned three groups of embodiments, independent laser welding process and single Arc Welding Process, is made
Welded with 10 centimetres of circular steel plate of the steel bar of one centimetre of diameter and one cm diameter of thickness, then to the intensity point of weld seam
It is not measured, draws following form：
Knowable to the experimental data of upper table, the intensity after the welding of the welding procedure of this programme is higher, therefore with preferably pushing away
Wide value.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (6)
1. a kind of laser electrical arc complex welding method, it is characterised in that the method is comprised the following steps：
S1：Workpiece surface treatment：Polished using sand paper on the top layer of welding workpiece, removed the impurity on surface, be then coated with
One layer of welding protective liquid, is protected；
S2：Open up welding groove：Welding groove is cut out on the surface of workpiece using cutting machine, then one layer of brush welds protective liquid again,
Stand 5-10 minutes；
S3：Connection arc-welding equipment：The power supply of arc-welding equipment is disconnected, the negative electrode welding rod of arc-welding equipment is electrical
Connection, the anode of arc-welding equipment and workpiece are electrically connected with；
S4：Start laser welding apparatus：Workpiece to be welded is aligned with welding groove, the welding rod for then connecting previous step and
Workpiece carries out examination and touches in the welding groove port position for opening up, and after electric arc to be generated, welding rod is left into 1-2 centimetres of workpiece, then
Contact release electric arc is carried out again, and each time of contact control made welding rod along welding groove to another at 1-3 seconds during contact
One end is moved, and while arc welding taps into row, opens laser welding apparatus, and control laser beam follows the position of electric arc to move,
When welding rod moves to welding groove end, the power supply of arc-welding equipment and the power supply of laser welding apparatus are closed；
S5：Water spray quenching treatment：When previous step closes to an end, sprayer is opened, after welding process terminates, use spraying
Device carries out misting cooling to the position of welding groove, processes 1-3 minutes, and sprayer is closed afterwards；
S6：Weld seam treatment：The coating for welding rooved face is knocked out using hammer, reuse grinding apparatus is carried out to the both sides of weld seam
Polishing, disposes after the bead sputtered out in welding process, then carries out anti-corrosion treatment on surface.
2. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：First make in the step S1
Workpiece surface is polished with the sand paper of M7, the sand paper for then reusing M1.5 carries out fine grinding.
3. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：Welded in the step S2
The section of groove is in V-shape, or U-shaped.
4. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：In the step S1 and S2
The welding protective liquid composition for using is：Cupric oxide powder 20%, the watery hydrochloric acid 50%, rosin powder that aluminium powder 10%, mass concentration is 12%
20%。
5. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：In weldering in the step S4
When connecing, welding rod and laser beam keep inclining during welding, and angle of inclination should be equal, are 70-80 degree, and welding rod and
The control errors of laser beam tilt angle are within 10 degree.
6. a kind of laser electrical arc complex welding method according to claim 1, it is characterised in that：Used in the step S6
Anti-corrosion treatment using plating by the way of or spray painting mode.
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| CN201611097138.3A CN106735968A (en) | 2016-12-02 | 2016-12-02 | A kind of laser electrical arc complex welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103076A1 (en) * | 2016-12-09 | 2018-06-14 | 孙振田 | Hybrid laser-arc welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103076A1 (en) * | 2016-12-09 | 2018-06-14 | 孙振田 | Hybrid laser-arc welding method |
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Address after: Jiaozhou City, Shandong province 266300 Qingdao City Huiying economic and Technological Development Zone, South First Street Applicant after: Qingdao Branch Co., Ltd. of Mechanical Science Research Institute Address before: Jiaozhou City, Shandong province 266300 Qingdao City Huiying economic and Technological Development Zone, South First Street Applicant before: Qingdao Branch of China Academy of Machinery Science and Technology |
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Application publication date: 20170531 |