CN109465548A - It is a kind of that pretreated welding method is carried out using laser beam - Google Patents
It is a kind of that pretreated welding method is carried out using laser beam Download PDFInfo
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- CN109465548A CN109465548A CN201811471083.7A CN201811471083A CN109465548A CN 109465548 A CN109465548 A CN 109465548A CN 201811471083 A CN201811471083 A CN 201811471083A CN 109465548 A CN109465548 A CN 109465548A
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- welding
- welding method
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- arc
- laser beam
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Classifications
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
- B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Laser Beam Processing (AREA)
Abstract
Pretreated welding method is carried out using laser beam the invention discloses a kind of, using hybrid Laser-Arc Welding technique, step 1 melts welding bead surface to be welded with pulse laser under oxygen protection on the face of weld of base material and forms laser pre-treated welding bead；Step 2 is welded on welding bead to be welded with arc-welding method and laser pre-treated welding bead is completely covered.Under oxygen protection oxygen element content in weld seam can increase; and then surface tension temperature coefficient can be made to become positive value from negative value; to make welding penetration increase; this, which carries out pretreated welding method using laser beam, can make the welding penetration of the more traditional TIG weldering of welding penetration increase by 2~3 times, and then can guarantee the service performance of weld seam.
Description
Technical field
It is specifically a kind of that pretreated welding method is carried out using laser beam the present invention relates to a kind of welding method, belong to
In welding technology field.
Background technique
TIG welds (Tungsten Inert Gas Welding), also known as non-melt pole inert gas tungsten electrode protection weldering.Nothing
When by being the stainless steel in human weld or automatic welding 0.5~4.0mm thickness, TIG weldering is all most commonly used welding manner.
Active welding method is a kind of simple, efficient, energy-efficient welding method, and wherein A-TIG weldering refers in the painting of the surface of welding plate
Upper one layer of very thin activating agent improves the method for welding penetration, so that the welding penetration is reached traditional TIG weldering with this method
2~3 times, bevel is not needed to the plate of 3~12mm of plate thickness, can disposably weld completion.But it is obtained using after activating agent
To face of weld there are slag, surface forming is deteriorated, and the presence of slag often makes subsequent welding procedure become complicated, into
And the service performance of weld seam is influenced, or even influence the corrosion resistance of weld seam.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of use laser beam progress pretreated welding method, simple process,
It can be realized the fusion penetration for increasing welding without using activating agent and then the service performance for guaranteeing weld seam.
To achieve the above object, this carries out pretreated welding method using laser beam and uses hybrid Laser-Arc Welding
Technique, specifically includes the following steps:
Step 1 melts welding bead surface to be welded with pulse laser under oxygen protection on the face of weld of base material and is formed
Laser pre-treated welding bead；
Step 2 is welded on welding bead to be welded with arc-welding method and laser pre-treated welding bead is completely covered.
As a further improvement of the present invention, the fusion penetration of laser pre-treated welding bead is not less than 1mm, molten wide in step 1
No more than 2mm.
As one embodiment of the present invention, the pulse laser in step 1 uses 2~5kw of peak power, hot spot
The YAG pulse laser of 0.5~1mm of diameter.
As one embodiment of the present invention, the arc-welding method in step 2 is open arc welding method or submerged arc
Welding method or gas-shield welding method or plasma arc welding method.
Compared with prior art, this can make to weld using the pretreated welding method of laser beam progress under oxygen protection
Oxygen element content increases in seam, and then surface tension temperature coefficient can be made to become positive value from negative value, so that welding penetration be made to increase
Add, this, which carries out pretreated welding method using laser beam, can make the welding penetration of the more traditional TIG weldering of welding penetration increase by 2
~3 times, and then can guarantee the service performance of weld seam.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
This carries out pretreated welding method using laser beam and uses hybrid Laser-Arc Welding technique, specifically include with
Lower step:
Step 1 melts welding bead surface to be welded with pulse laser under oxygen protection on the face of weld of base material and is formed
Laser pre-treated welding bead；
Step 2 is welded on welding bead to be welded with arc-welding method and laser pre-treated welding bead is completely covered.
As a further improvement of the present invention, the fusion penetration of laser pre-treated welding bead is not less than 1mm, molten wide in step 1
No more than 2mm.
As one embodiment of the present invention, the pulse laser in step 1 uses 2~5kw of peak power, hot spot
The YAG pulse laser of 0.5~1mm of diameter.
As one embodiment of the present invention, the arc-welding method in step 2 is open arc welding method or submerged arc
Welding method or gas-shield welding method or plasma arc welding method.
Claims (4)
1. a kind of carry out pretreated welding method using laser beam, which is characterized in that use hybrid Laser-Arc Welding work
Skill, specifically includes the following steps:
Step 1 melts welding bead surface to be welded with pulse laser under oxygen protection on the face of weld of base material and forms laser
Pre-process welding bead；
Step 2 is welded on welding bead to be welded with arc-welding method and laser pre-treated welding bead is completely covered.
2. according to claim 1 carry out pretreated welding method using laser beam, which is characterized in that in step 1
The fusion penetration of laser pre-treated welding bead is not less than 1mm, and molten wide is not more than 2mm.
3. according to claim 1 or 2 carry out pretreated welding method using laser beam, which is characterized in that step
Pulse laser in one uses the YAG pulse laser of 2~5kw of peak power, 0.5~1mm of spot diameter.
4. according to claim 1 or 2 carry out pretreated welding method using laser beam, which is characterized in that step
Arc-welding method in two is open arc welding method or buried arc welding method or gas-shield welding method or plasma arc
Welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471083.7A CN109465548A (en) | 2018-12-04 | 2018-12-04 | It is a kind of that pretreated welding method is carried out using laser beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471083.7A CN109465548A (en) | 2018-12-04 | 2018-12-04 | It is a kind of that pretreated welding method is carried out using laser beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109465548A true CN109465548A (en) | 2019-03-15 |
Family
ID=65675585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471083.7A Pending CN109465548A (en) | 2018-12-04 | 2018-12-04 | It is a kind of that pretreated welding method is carried out using laser beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109465548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091067A (en) * | 2019-06-06 | 2019-08-06 | 上海工程技术大学 | A kind of laser and K-TIG complex welding method for welding cut deal |
| CN110977322A (en) * | 2019-11-21 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing defect of typical part of tail nozzle mechanical adjusting system |
-
2018
- 2018-12-04 CN CN201811471083.7A patent/CN109465548A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091067A (en) * | 2019-06-06 | 2019-08-06 | 上海工程技术大学 | A kind of laser and K-TIG complex welding method for welding cut deal |
| CN110977322A (en) * | 2019-11-21 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing defect of typical part of tail nozzle mechanical adjusting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190315 |