CN104526121A - Aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness - Google Patents
Aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness Download PDFInfo
- Publication number
- CN104526121A CN104526121A CN201410694875.6A CN201410694875A CN104526121A CN 104526121 A CN104526121 A CN 104526121A CN 201410694875 A CN201410694875 A CN 201410694875A CN 104526121 A CN104526121 A CN 104526121A
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- China
- Prior art keywords
- welding
- aluminum
- aluminum alloy
- inert gas
- thickness
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- 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.)
- Pending
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- 238000003466 welding Methods 0.000 title claims abstract description 85
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000011261 inert gas Substances 0.000 title claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000002932 luster Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
-
- 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
- B23K9/235—Preliminary treatment
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness. The aluminum and aluminum alloy inert-gas shielded welding process comprises the following steps of adopting a Y-shaped welding groove, wherein a groove angle is 60 +/- 5 degrees, and a groove gap is 2-3 mm; adopting acetone and a rotary file to remove oil stains, aluminum chippings and oxidation films at the positions to be welded, on the end face and edge of an aluminum alloy plate within 20 mm range and expose metal luster before welding; adopting inert-gas shielded welding, wherein welding process parameters are that welding voltage ranges from 23 V to 25 V, welding current ranges from 190 A to 220 A, welding speed ranges from 250 mm/min to 300 mm/min, welding wire diameter is 2 mm, and shielding gas flow ranges from 15 L/min to 20 L/min; selecting corresponding aluminum alloy welding wires to perform welding according to material models of aluminum and aluminum alloy plates during welding, adopting multi-layer and multi-pass welding, wherein welding passes are mutually overlapped, overlapped welding joints are not smaller than 1/3 of welding joint width, and meanwhile a pneumatic digger is used for hammering the welding joints so as to eliminate stress after each layer of welding is completed. By means of the aluminum and aluminum alloy inert-gas shielded welding process, the process of the welding process can be effectively controlled, the whole process and product quality stability are ensured, disqualification phenomena are decreased, and the aluminum and aluminum alloy inert-gas shielded welding process is suitable for aluminum and aluminum alloy welding of the plates of 12 mm thickness.
Description
Invention field
The present invention relates to a kind of Aluminum-aluminum alloy welding procedure, be specifically related to a kind of Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure being applicable to 12mm thickness of slab.
Background technology
Aluminium is one of element that in the earth's crust, content is more, and its content reaches 8.8%, occupies first of four large metallic elements, accounts for 1/3 of whole metallic element quality.Due to the improvement of aluminum technology processed, aluminum i ndustry develops with surprising rapidity.By 2004, world aluminum output reached 2,980 ten thousand t, and wherein China is 6,800,000 t, occupies third place in the world, and the kind of aluminium alloy is more than thousand kinds.Due to the development of aluminium, the process technology of aluminium also obtains the progress of advancing by leaps and bounds.Aluminium alloy, because of features such as its quality are light, specific strength high and low temperature performance is good, plasticity is easy to well processing and corrosion-resistant, is widely used in fields such as aerospace industry, Rail car manufacture, pressure vessel and communications and transportation.
Along with the development of aluminium, the process technology of aluminium also obtains the progress of advancing by leaps and bounds.But, because aluminium has multiple physics and the chemical property features such as oxidisability is strong, fusing point is low, heat conduction is fast, linear expansion coefficient is large, the latent heat of fusion is large, therefore, select the welding method be applicable to become the emphasis of concern.
Welding is the important processing method of connection metal.Compared with iron, the oxidisability of aluminium is strong, fusing point is low, heat conduction is fast, linear expansion coefficient is large, the latent heat of fusion is large, elevated temperature strength is low and can form the physics such as low melting point eutectic and chemical property feature, brings a series of difficulty to welding job.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure being applicable to 12mm thickness of slab.
The technical solution used in the present invention is:
Be applicable to an Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure for 12mm thickness of slab, it is characterized in that, comprise the following steps:
(1) adopt the bevel for welding of Y type, bevel angle is 60 ± 5 °, and groove gap is 2 ~ 3mm;
(2) adopt acetone, rotary file to remove greasy dirt, aluminium bits, the oxide-film at position to be welded within the scope of aluminium alloy plate end face and edge 20mm before welding, expose metallic luster;
(3) adopt inert gas-shielded arc welding, welding condition is: weldingvoltage 23 ~ 25V, welding current 190 ~ 220A, speed of welding 250 ~ 300mm/min, and gage of wire is 2mm, shield gas flow rate 15 ~ 20L/min;
(4) during welding, select corresponding aluminium alloy welding wire to weld according to the material model of Aluminum-aluminum alloy plate, adopt multi-pass welding, welding bead overlaps each other, overlapping weld seam is no less than 1/ 3 of weld width, is often soldered one deck pneumatic shovel hammering weld seam to eliminate stress simultaneously.
Further, the inert gas gas cylinder of described step (3) should stand upside down before use and within 2 hours, discharge water 2 ~ 3 times, and air pressure must not continue to use at below 980KPa.
Further, the inert gas of described step (3) is Ar, and the purity of described Ar is 99.999%.
Further, the welding machine of the inert gas-shielded welding technique of described step (3) connects employing exchange way.
Beneficial effect of the present invention:
Welding technique of the present invention makes welding procedure can carry out under effective control, guarantees overall process and constant product quality, reduces the generation of defective phenomenon, be applicable to the welding of the Aluminum-aluminum alloy of 12mm thickness of slab.
Detailed description of the invention
Be applicable to an Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure for 12mm thickness of slab, it is characterized in that, comprise the following steps:
(1) adopt the bevel for welding of Y type, bevel angle is 60 ± 5 °, and groove gap is 2 ~ 3mm;
(2) adopt acetone, rotary file to remove greasy dirt, aluminium bits, the oxide-film at position to be welded within the scope of aluminium alloy plate end face and edge 20mm before welding, expose metallic luster;
(3) adopt inert gas-shielded arc welding, welding condition is: weldingvoltage 23 ~ 25V, welding current 190 ~ 220A, speed of welding 250 ~ 300mm/min, and gage of wire is 2mm, shield gas flow rate 15 ~ 20L/min;
(4) during welding, select corresponding aluminium alloy welding wire to weld according to the material model of Aluminum-aluminum alloy plate, adopt multi-pass welding, welding bead overlaps each other, overlapping weld seam is no less than 1/ 3 of weld width, is often soldered one deck pneumatic shovel hammering weld seam to eliminate stress simultaneously.
Further, the inert gas gas cylinder of described step (3) should stand upside down before use and within 2 hours, discharge water 2 ~ 3 times, and air pressure must not continue to use at below 980KPa.
Further, the inert gas of described step (3) is Ar, and the purity of described Ar is 99.999%.
Further, the welding machine of the inert gas-shielded welding technique of described step (3) connects employing exchange way.
Claims (4)
1. be applicable to an Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure for 12mm thickness of slab, it is characterized in that, comprise the following steps:
(1) adopt the bevel for welding of Y type, bevel angle is 60 ± 5 °, and groove gap is 2 ~ 3mm;
(2) adopt acetone, rotary file to remove greasy dirt, aluminium bits, the oxide-film at position to be welded within the scope of aluminium alloy plate end face and edge 20mm before welding, expose metallic luster;
(3) adopt inert gas-shielded arc welding, welding condition is: weldingvoltage 23 ~ 25V, welding current 190 ~ 220A, speed of welding 250 ~ 300mm/min, and gage of wire is 2mm, shield gas flow rate 15 ~ 20L/min;
(4) during welding, select corresponding aluminium alloy welding wire to weld according to the material model of Aluminum-aluminum alloy plate, adopt multi-pass welding, welding bead overlaps each other, overlapping weld seam is no less than 1/ 3 of weld width, is often soldered one deck pneumatic shovel hammering weld seam to eliminate stress simultaneously.
2. a kind of Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure being applicable to 12mm thickness of slab according to claim 1; it is characterized in that: the inert gas gas cylinder of described step (3) should stand upside down before use and within 2 hours, discharge water 2 ~ 3 times, and air pressure must not continue to use at below 980KPa.
3. a kind of Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure being applicable to 12mm thickness of slab according to claim 1, it is characterized in that: the inert gas of described step (3) is Ar, the purity of described Ar is 99.999%.
4. a kind of Aluminum-aluminum alloy inert gas-shielded arc welding welding procedure being applicable to 12mm thickness of slab according to claim 1, is characterized in that: the welding machine of the inert gas-shielded welding technique of described step (3) connects employing exchange way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694875.6A CN104526121A (en) | 2014-11-27 | 2014-11-27 | Aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694875.6A CN104526121A (en) | 2014-11-27 | 2014-11-27 | Aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104526121A true CN104526121A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410694875.6A Pending CN104526121A (en) | 2014-11-27 | 2014-11-27 | Aluminum and aluminum alloy inert-gas shielded welding process suitable for plates of 12 mm thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526121A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959787A (en) * | 2015-06-17 | 2015-10-07 | 柳州杰龙汽车零部件制造有限公司 | Machining technology for dumper front plate assembly |
| CN104959788A (en) * | 2015-06-17 | 2015-10-07 | 柳州杰龙汽车零部件制造有限公司 | Dumper edge plate assembly machining process |
| CN106312263A (en) * | 2016-10-21 | 2017-01-11 | 中国化学工程第六建设有限公司 | Welding method for aluminum alloy thick plate |
| CN108544062A (en) * | 2018-04-19 | 2018-09-18 | 辽宁忠旺铝合金精深加工有限公司 | A kind of automatic welding method for welding of aluminium alloy sheet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005052858A (en) * | 2003-08-01 | 2005-03-03 | Sekisui Chem Co Ltd | High-speed butt welding method of aluminum material |
| CN102079003A (en) * | 2010-12-31 | 2011-06-01 | 陕西国德电气制造有限公司 | Automatic TIG gasket-free single-side welding and double-side molding process for aluminum alloy |
| CN103586568A (en) * | 2013-10-15 | 2014-02-19 | 国家电网公司 | Aluminum alloy thick plate welding process |
-
2014
- 2014-11-27 CN CN201410694875.6A patent/CN104526121A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005052858A (en) * | 2003-08-01 | 2005-03-03 | Sekisui Chem Co Ltd | High-speed butt welding method of aluminum material |
| CN102079003A (en) * | 2010-12-31 | 2011-06-01 | 陕西国德电气制造有限公司 | Automatic TIG gasket-free single-side welding and double-side molding process for aluminum alloy |
| CN103586568A (en) * | 2013-10-15 | 2014-02-19 | 国家电网公司 | Aluminum alloy thick plate welding process |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工程学会焊接学会: "《焊接手册 第1卷 焊接方法及设备 第3版》", 31 January 2008, article "焊接方法及设备", pages: 138-146 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959787A (en) * | 2015-06-17 | 2015-10-07 | 柳州杰龙汽车零部件制造有限公司 | Machining technology for dumper front plate assembly |
| CN104959788A (en) * | 2015-06-17 | 2015-10-07 | 柳州杰龙汽车零部件制造有限公司 | Dumper edge plate assembly machining process |
| CN106312263A (en) * | 2016-10-21 | 2017-01-11 | 中国化学工程第六建设有限公司 | Welding method for aluminum alloy thick plate |
| CN106312263B (en) * | 2016-10-21 | 2018-06-29 | 中国化学工程第六建设有限公司 | The welding method of aluminium alloy thick plate |
| CN108544062A (en) * | 2018-04-19 | 2018-09-18 | 辽宁忠旺铝合金精深加工有限公司 | A kind of automatic welding method for welding of aluminium alloy sheet |
| CN108544062B (en) * | 2018-04-19 | 2020-09-18 | 辽宁忠旺铝合金精深加工有限公司 | Automatic welding method for aluminum alloy sheet |
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Application publication date: 20150422 |
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