CN203184840U - Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field - Google Patents
Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field Download PDFInfo
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- CN203184840U CN203184840U CN 201320057081 CN201320057081U CN203184840U CN 203184840 U CN203184840 U CN 203184840U CN 201320057081 CN201320057081 CN 201320057081 CN 201320057081 U CN201320057081 U CN 201320057081U CN 203184840 U CN203184840 U CN 203184840U
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- laser
- electric arc
- tig
- hybrid welding
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Abstract
The utility model relates to a laser-TIG electric arc coaxial hybrid welding device with an external high frequency magnetic field. The laser-TIG electric arc coaxial hybrid welding device comprises a TIG welding machine, a laser-TIG electric arc coaxial hybrid welding head, a tungsten electrode, an exciting coil, an exciting power source and a hybrid welding head connection device, wherein the positive pole and the negative pole of the TIG welding machine are connected with a workpiece and the tungsten electrode respectively, the lower portion of the laser-TIG electric arc coaxial hybrid welding head is connected with the exciting coil through the hybrid welding head connection device, and the two ends of the exciting coil are connected with the positive pole and the negative pole of the exciting power source respectively. Compared with the prior art, the laser-TIG electric arc coaxial hybrid welding device has the advantages that pneumatic pressure of electric arcs and electric current density of the electric arcs are enhanced effectively, heat distribution of the electric arcs is more concentrated, and therefore energy density of the electric arcs and stiffness of the electric arcs are enhanced; therefore, the degree of stability of the welding electric arcs in a laser electric arc hybrid welding process is improved, and the laser-TIG electric arc coaxial hybrid welding device is beneficial to the coaxial hybrid degree of laser and the electric arcs during laser-TIG electric arc coaxial hybrid welding, and has wide market prospects.
Description
Technical field
The utility model relates to the materials processing technology field, particularly a kind of coaxial composite welding device of laser-TIG electric arc that adds high frequency magnetic field.
Background technology
In laser-coaxial composite welding of TIG electric arc, because electric arc and laser have good alignment, there is not the two relative position problem, and can realize smoothly that the electric arc combined welding 3 D stereo of laser-TIG welds contour horizontal welding requirements, yet, in the coaxial composite welding process of high power laser electric arc, photo plasma shields outside the laser effect laser utilization rate on the one hand, also can make the drift of welding arc generation anode spot, influence the two axiality of laser and electric arc in laser-coaxial composite welding of TIG electric arc, influence welding quality.
Based on above understanding, the utility model proposes and add high frequency magnetic field, act on the photo plasma that laser produces on the one hand, reduce the photic three-dimensional shielding action to laser that waits, act on welding arc on the other hand, improve electric arc homeostasis burning capacity, increase laser and electric arc in the coaxial composite welding process, vast market and application prospect are arranged.
Summary of the invention
The purpose of this utility model provides a kind of coaxial composite welding device of the laser that adds high frequency magnetic field-TIG electric arc of laser and the coaxial compound degree of electric arc when improving the electric arc combined coaxial welding of laser utilization rate and laser-TIG.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of coaxial composite welding device of laser-TIG electric arc that adds high frequency magnetic field, comprise tig arc welding machine, the laser-coaxial composite welding head of TIG electric arc, tungsten electrode, magnetizing coil, excitation power supply and composite welding head jockey, the both positive and negative polarity of described tig arc welding machine is connected with tungsten electrode with workpiece respectively, tungsten electrode is arranged on the inside of laser-coaxial composite welding head of TIG electric arc, laser-coaxial the composite welding head of TIG electric arc bottom is connected with magnetizing coil by the composite welding head jockey, and the magnetizing coil two ends are connected with the both positive and negative polarity of excitation power supply respectively.
Compared with prior art, the beneficial effects of the utility model are:
A kind of coaxial composite welding device of laser-TIG electric arc that adds high frequency magnetic field, have the advantages that volume is little, cost is low, easy to use, owing to add high frequency magnetic field, effectively improved the electric arc Pneumatic pressure, arc current density, it is more concentrated that the electric arc heat is distributed, compressed the electric arc radius, and then improved the deflection of arc energy density and electric arc, these all make the degree of stability of in hybrid Laser-Arc Welding process welding arc improve, and then the coaxial compound degree of laser and electric arc when very being conducive to the electric arc combined coaxial welding of laser-TIG; On the other hand, charged particle in the plasma is moved under the effect of Lorentz force, the shape of its density and distribution and plasma and position all can change, thereby reduce photo plasma to the screen effect of laser, improve utilization ratio of laser energy, thereby further improve welding efficiency and welding process stability, in addition, add high frequency magnetic field and also help the refinement of flowing of molten pool metal and weld grain tissue, and then effectively improve the appearance of weld of laser-coaxial composite welding of TIG electric arc from every side, effectively optimized welding procedure, vast market and application prospect have been arranged.
Description of drawings
Fig. 1 is structure chart of the present utility model.
1-tig arc welding machine, the 2-laser-coaxial composite welding head 3-tungsten electrode of TIG electric arc 4-workpiece 5-magnetizing coil 6-excitation power supply 7-composite welding head jockey 8-laser beam
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further specified:
As shown in Figure 1, a kind of coaxial composite welding device of laser-TIG electric arc that adds high frequency magnetic field of the utility model, comprise tig arc welding machine 1, the coaxial composite welding head 2 of laser-TIG electric arc, tungsten electrode 3, magnetizing coil 5, excitation power supply 6 and composite welding head jockey 7, the both positive and negative polarity of described tig arc welding machine 1 is connected with tungsten electrode 3 with workpiece 4 respectively, tungsten electrode 3 is arranged on the inside of laser-coaxial composite welding head 2 of TIG electric arc, the coaxial composite welding head of laser-TIG electric arc 2 bottoms are connected with magnetizing coil 5 by composite welding head jockey 7, and magnetizing coil 5 two ends are connected with the both positive and negative polarity of excitation power supply 6 respectively.
When using the utility model, finish according to the following steps:
1) at first according to the material of workpiece 4, thickness of slab, cut form etc.; specify welding condition; as welding current, laser power, speed of welding, protection throughput, tungsten electrode 3 and workpiece 4 distances etc., these technological parameters are the electric arc combined welding standard technological parameter formulation of laser-TIG during according to no externally-applied magnetic field.
2) then the both positive and negative polarity of tig arc welding machine 1 is connected to workpiece 4 and tungsten electrode 3 respectively, then excitation power supply 6 outputs are connected on the magnetizing coil 5, magnetizing coil 5 is linked together by composite welding head jockey 7 and the coaxial composite welding head 2 of laser-TIG electric arc, determine the welding walking path;
3) open excitation power supply 6, give magnetizing coil 5 power supplies, exciting curent by excitation power supply 6 generations, making magnetizing coil 5 produce frequency in the coaxial composite welding of laser-TIG electric arc zone is the high frequency magnetic field of 0～20KHz, the high frequency magnetic field that produces in the coaxial composite welding of laser-TIG electric arc zone acts on the photo plasma that laser produces, reduce the photic three-dimensional shielding action to laser that waits, improve the laser utilization rate, simultaneously, also act on welding arc, because the high-frequency variation of externally-applied magnetic field and the difference of arc-plasma and air permeability, will inside and outside electric arc, form a magnetic pressure difference △ P, this magnetic pressure missionary society produces high frequency magnetic compression effect to electric arc, improve arc energy density and deflection, the compression arc radius, improve electric arc homeostasis burning capacity and the ability of impacting fusion penetration in laser-coaxial composite welding of TIG electric arc, improve the laser beam ability coaxial with the electric arc maintenance in the coaxial composite welding process of laser-TIG electric arc simultaneously, avoid because the welding procedure defective that produces owing to coaxial degree reduction in the welding process;
4) opening protection gas welds; observe the appearance of weld situation; exciting curent by regulating 0～200A and 25%～75% duty are recently adjusted the introducing intensity of high frequency magnetic field; adjust the pull-in frequency of high frequency magnetic field by the exciting curent frequency of regulating 0～20KHz; improve the electric arc combined welded seam forming technology of laser-TIG; weld penetration can increase along with the increase of exciting curent frequency and magnetic field intensity; under the laser power of the welding current of 0 identical～500A and 0～6000W; add high frequency magnetic field and be significantly increased than the weld penetration that does not add magnetic field laser-coaxial composite welding of TIG electric arc; increasing degree is about 10%～35%; the grain structure of welding heat affected zone becomes fine and closely woven, and crisp hard tendency obviously reduces.
Above described only be basic principle of the present utility model, be not that the utility model is imposed any restrictions, everyly according to the utility model it is carried out equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (1)
1. coaxial composite welding device of laser-TIG electric arc that adds high frequency magnetic field, it is characterized in that, comprise tig arc welding machine, the laser-coaxial composite welding head of TIG electric arc, tungsten electrode, magnetizing coil, excitation power supply and composite welding head jockey, the both positive and negative polarity of described tig arc welding machine is connected with tungsten electrode with workpiece respectively, tungsten electrode is arranged on the inside of laser-coaxial composite welding head of TIG electric arc, laser-coaxial the composite welding head of TIG electric arc bottom is connected with magnetizing coil by the composite welding head jockey, and the magnetizing coil two ends are connected with the both positive and negative polarity of excitation power supply respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057081 CN203184840U (en) | 2013-01-31 | 2013-01-31 | Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057081 CN203184840U (en) | 2013-01-31 | 2013-01-31 | Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field |
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| Publication Number | Publication Date |
|---|---|
| CN203184840U true CN203184840U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320057081 Expired - Lifetime CN203184840U (en) | 2013-01-31 | 2013-01-31 | Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field |
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| Country | Link |
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| CN (1) | CN203184840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128423A (en) * | 2013-01-31 | 2013-06-05 | 鞍山煜宸科技有限公司 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
-
2013
- 2013-01-31 CN CN 201320057081 patent/CN203184840U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128423A (en) * | 2013-01-31 | 2013-06-05 | 鞍山煜宸科技有限公司 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
| CN103128423B (en) * | 2013-01-31 | 2015-03-04 | 鞍山煜宸科技有限公司 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161201 Address after: 210038 Jiangsu city of Nanjing province and the economic and Technological Development Zone Road No. 18 Patentee after: NANJING ZHONGKE RAYCHAM TECHNOLOGY Co.,Ltd. Address before: Xinghe road Xingang Development Zone in Nanjing City, Jiangsu Province, No. 18 210038 Patentee before: NANJING RAYCHAM LASER TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |