CN109530850A - A method of welding irony workpiece on copper or aluminum base material - Google Patents
A method of welding irony workpiece on copper or aluminum base material Download PDFInfo
- Publication number
- CN109530850A CN109530850A CN201811470903.0A CN201811470903A CN109530850A CN 109530850 A CN109530850 A CN 109530850A CN 201811470903 A CN201811470903 A CN 201811470903A CN 109530850 A CN109530850 A CN 109530850A
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- CN
- China
- Prior art keywords
- copper
- base material
- aluminum base
- welding
- weld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B23K9/00—Arc welding or cutting
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
- Arc Welding In General (AREA)
Abstract
The method that the invention discloses a kind of to weld irony workpiece on copper or aluminum base material, using hybrid Laser-Arc Welding technique, specifically includes the following steps: step 1, the Ni-Cr alloy cladding layer of metallurgical bonding is prepared with pulse laser on copper or aluminum base material face of weld；Step 2 welds irony workpiece with arc-welding method on the Ni-Cr alloy cladding layer.This method that irony workpiece is welded on copper or aluminum base material can reach copper or aluminum base material and the effective welding purpose of irony workpiece, simple process, and it is not required to not limited substrate preheating by matrix material size using hybrid Laser-Arc Welding technique, while can be realized reduction weld crack.
Description
Technical field
It is specifically a kind of to be suitable for welding irony workpiece on copper or aluminum base material the present invention relates to a kind of welding method
Method, belong to welding technology field.
Background technique
Copper or aluminium belong to non-ferrous metal, and the two all has the feature that ductility is good, thermal conductivity and electric conductivity are high, therefore
Cable and electrical, electronic component are most common materials, it is also possible to make construction material, can form numerous kinds of alloys, at present copper
The copper alloy of matter or the aluminium alloy of aluminum are widely used in the industry.
In industrial application, the welding as being directed to components in household electric appliances is welded sometimes on copper or aluminum base material
Irony workpiece is connect, since the thermal conductivity of copper or aluminium is high, thermal expansion coefficient is big, directly with arc-welding method on copper or aluminum substrate
Irony workpiece is welded, commissure is easy to appear crackle, is difficult to realize metallurgical bonding.Copper and iron welding conventional method is adopted in the prior art
It being brazed with silver solder, copper and iron is heated to the temperature of welding rod fusing while welding rod melts, so the volume of weldment cannot be big,
Especially copper piece, otherwise copper piece can not achieve in the copper piece of large volume due to the thermally conductive melting temperature for being extremely difficult to welding rod fastly
Weld ironware.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of method for welding irony workpiece on copper or aluminum base material, technique
Simply, it can be realized and reduce weld crack, guarantee welding quality.
To achieve the above object, this method that irony workpiece is welded on copper or aluminum base material uses laser-arc compound
Welding procedure, specifically includes the following steps:
Step 1, the Ni-Cr for preparing metallurgical bonding on copper or aluminum base material face of weld with pulse laser are closed
Golden cladding layer；
Step 2 welds irony workpiece with arc-welding method on the Ni-Cr alloy cladding layer.
As a further improvement of the present invention, the concrete operations of step 1: first in copper or aluminum base material welding
The Ni-Cr alloy powder bed of preset design requirement thickness on surface, or synchronized when laser beam irradiates high-thermal conductive metal surface
Convey Ni-Cr alloy powder (i.e. synchronous powder feeding system), laser beam need to weld copper of irradiation that is then generated with pulse laser or
The face of weld of aluminum base material is fused to Ni-Cr alloy powder on copper or aluminum base material face of weld, and laser pulse terminates
Afterwards, the Ni-Cr alloy metal of cladding and copper or aluminum base material face of weld form the cladding point of metallurgical bonding, each or
Multiple duplicate laser pulses can form a Ni-Cr alloy cladding point；Repeat aforesaid operations, formed design requirement area and
The Ni-Cr alloy cladding layer of thickness.
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 method that irony workpiece is welded on copper or aluminum base material is first existed using laser technology
Ni-Cr alloy cladding layer is prepared on copper or aluminum base material face of weld, and using it as transition zone, it is then molten in Ni-Cr
Irony workpiece is welded on coating transition zone, reaches copper or aluminum base material and irony workpiece with transition zone metallurgical bonding, respectively
Copper or aluminum base material and the effective welding purpose of irony workpiece, simple process, and be not required to using hybrid Laser-Arc Welding technique
It to substrate preheating, is not limited by matrix material size, while can be realized reduction weld crack.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
Originally in the method for welding irony workpiece on copper or aluminum base material in specific welding, first in copper or aluminum base material
Face of weld on preset design requirement thickness Ni-Cr alloy powder bed, or laser beam irradiate high-thermal conductive metal surface
When synchronous transport Ni-Cr alloy powder (synchronous powder feeding system), then with 0.5~1mm of spot diameter, 2~5kw of peak power
The laser beam that YAG pulse laser generates irradiates copper or aluminum base material the face of weld that need to be welded, and makes Ni-Cr alloy powder
It is fused on copper or aluminum base material face of weld, after laser pulse, the Ni-Cr alloy metal of cladding and copper or aluminum
The face of weld of base material forms the cladding point of metallurgical bonding, each or multiple duplicate laser pulses can form a Ni-
Cr alloy cladding point；Aforesaid operations are repeated, design requirement area and thickness can be formed in copper or aluminum base material face of weld
The Ni-Cr alloy cladding layer (transition zone) of degree；Arc-welding method is recycled to weld irony workpiece at cladding layer.
Embodiment 1
On the fine copper block of 100 × 100 × 50mm, with the YAG pulse laser system of peak power 3kw, spot diameter 0.5mm
The Ni-Cr alloy cladding layer of standby diameter about 10mm, thickness 1mm, and using its transition zone as welding, then with the protection of tungsten electrode argon gas
The irony bolt welding of diameter 5mm is realized effective welding of copper Yu irony bolt by welding method on the transition zone.
Embodiment 2
In the aluminum piece of 100 × 100 × 50mm, with the YAG pulse laser system of peak power 2.5kw, spot diameter 1m
The Ni-Cr alloy cladding layer of standby diameter about 8mm, thickness 0.8mm, and using this its as the transition zone welded, then use plasma arc
Welding realizes effective welding of aluminium Yu irony bolt by the irony bolt welding of diameter 4mm on transition zone.
Claims (4)
1. a kind of method for welding irony workpiece on copper or aluminum base material, which is characterized in that use laser-arc hybrid welding process
Technique is connect, specifically includes the following steps:
Step 1, the Ni-Cr alloy for preparing metallurgical bonding on copper or aluminum base material face of weld with pulse laser are molten
Coating；
Step 2 welds irony workpiece with arc-welding method on the Ni-Cr alloy cladding layer.
2. the method according to claim 1 for welding irony workpiece on copper or aluminum base material, which is characterized in that step
One concrete operations: the Ni-Cr alloy powder bed of the first preset design requirement thickness on copper or aluminum base material face of weld,
Or the synchronous transport Ni-Cr alloy powder (synchronous powder feeding system) when laser beam irradiates high-thermal conductive metal surface, then use pulse
The laser beam that laser generates irradiates copper or aluminum base material the face of weld that need to be welded, and Ni-Cr alloy powder is made to be fused to copper
On the face of weld of matter or aluminum base material, after laser pulse, the Ni-Cr alloy metal of cladding and copper or aluminum base material
Face of weld forms the cladding point of metallurgical bonding, each or multiple duplicate laser pulses can form a Ni-Cr alloy
Cladding point；Aforesaid operations are repeated, the Ni-Cr alloy cladding layer of design requirement area and thickness is formed.
3. the method according to claim 1 or 2 for welding irony workpiece on copper or aluminum base material, which is characterized in that
Pulse laser in step 1 uses the YAG pulse laser of 2~5kw of peak power, 0.5~1mm of spot diameter.
4. the method according to claim 1 or 2 for welding irony workpiece on copper or aluminum base material, which is characterized in that
Arc-welding method in step 2 be open arc welding method or buried arc welding method or gas-shield welding method or wait from
Subarc welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470903.0A CN109530850A (en) | 2018-12-04 | 2018-12-04 | A method of welding irony workpiece on copper or aluminum base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470903.0A CN109530850A (en) | 2018-12-04 | 2018-12-04 | A method of welding irony workpiece on copper or aluminum base material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530850A true CN109530850A (en) | 2019-03-29 |
Family
ID=65853583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811470903.0A Pending CN109530850A (en) | 2018-12-04 | 2018-12-04 | A method of welding irony workpiece on copper or aluminum base material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109530850A (en) |
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2018
- 2018-12-04 CN CN201811470903.0A patent/CN109530850A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190329 |