CN105081534A - Tungsten inert gas (TIG) welding method capable of improving arc suppression quality of circumferential weld joint of medium-thin-wall aluminum alloy shell - Google Patents
Tungsten inert gas (TIG) welding method capable of improving arc suppression quality of circumferential weld joint of medium-thin-wall aluminum alloy shell Download PDFInfo
- Publication number
- CN105081534A CN105081534A CN201510563449.3A CN201510563449A CN105081534A CN 105081534 A CN105081534 A CN 105081534A CN 201510563449 A CN201510563449 A CN 201510563449A CN 105081534 A CN105081534 A CN 105081534A
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- China
- Prior art keywords
- welding
- arc
- aluminum alloy
- arc suppression
- wall aluminum
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- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 47
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 37
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 239000010937 tungsten Substances 0.000 title claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 6
- 230000001629 suppression Effects 0.000 title abstract 10
- 239000011261 inert gas Substances 0.000 title abstract 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract 3
- 239000011148 porous material Substances 0.000 description 8
- 208000037656 Respiratory Sounds Diseases 0.000 description 6
- 230000035515 penetration Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 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
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
-
- 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)
- Arc Welding In General (AREA)
Abstract
The invention relates to a tungsten inert gas (TIG) welding method capable of improving the arc suppression quality of a circumferential weld joint of a medium-thin-wall aluminum alloy shell. After the circumferential weld joint of the medium-thin-wall aluminum alloy shell is welded by a circle through a TIG welding process, arc suppression operation starts to be conducted on an advancing side of a weld pool when a starting weld joint begins to be melted and is divided into two stages of first-time synergistic attenuation and second-time synergistic attenuation. The arc suppression operation process is carried out according to corresponding matched welding current, welding speed and wire feeding speed parameters, and arc suppression welding of the circumferential weld joint is further finished. The TIG welding method provides a clear and definite time for arc suppression operation and quantifies the matched parameters of arc suppression welding synergistic attenuation in the arc suppression operation. The welding defects such as cracks, incomplete fusion and air holes generated in the arc suppression weld joint can be overcome, the arc suppression quality is improved, the welding repair rate is lowered, the manufacturing efficiency of products is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to thin-wall aluminum alloy housing girth joint in a kind of raising and receive the TIG welding method of arc quality.
Background technology
Along with the development of science and technology, increasing steel structure housing or cylindrical shell are replaced by aluminum alloy materials, to reach the light-weighted object of product now.In order to control cost, housing the overwhelming majority adopt volume weldering and butt welding process shaping, and do not adopt extrude or spinning process.Such as at present a lot of housing for storing, carrying all have employed thickness between 1.0mm ~ 6.0mm in thin-wall aluminum alloy structure, this just relates to the welding of girth joint between cylindrical shell.Adopt Gas Tungsten Arc Welding technique (TIG) welded case main ring weldquality all can reach I grade, but the weld defects such as the weld seam at the receipts arc place overlapped with initial weld seam easily cracks, lack of penetration and pore, thus have impact on the quality of whole product, product instructions for use can not be met.
Cause receiving the low main cause of arc place welding quality is hold inaccurate the opportunity of receiving arc, and welding current and speed of welding and wire feed rate parameter are not mated and caused.Receipts arc is too early, the too fast weld seam of wire feed rate easily produces lack of penetration, and receipts arc is excessively late, welding current is excessive easily causes crackle and pore.
Application publication number is the Chinese invention patent application " a kind of aluminium of 14-16mm thickness of slab and Alloy for TIG weldering welding procedure " of CN104526126A (application number is 201410694846.X), wherein disclose a kind of TIG and weld welding procedure, but this technique operates mainly for the aluminium of heavy wall in 14-16mm and alloy, its this TIG welds welding procedure and does not provide special improvement for receipts arc welding procedure, still exist in welding process there is the weld defects such as crackle, lack of penetration and pore may.
Summary of the invention
Technical problem to be solved by this invention provides a kind of TIG welding method that effectively can control to occur when receiving arc welding the weld defects such as crackle, lack of penetration and pore for above-mentioned prior art, and during this TIG welding method can improve, thin-wall aluminum alloy housing girth joint receives arc quality.
The present invention's adopted technical scheme that solves the problem is: a kind of improve in thin-wall aluminum alloy housing girth joint receive the TIG welding method of arc quality, it is characterized in that comprising the steps:
After thin-wall aluminum alloy housing girth joint completes one week in step one, the welding of employing TIG welding procedure, the opportunity of receiving arc is confirmed, starts to receive arc when welding pool advance side is about to the initial weld seam of fusing and operate;
Step 2, reach step one receipts arc opportunity time, start to carry out the operation of receipts arc, first once work in coordination with decay, namely within the time of 10s ~ 12s, by welding current by former welding current I
0reduce to I gradually
1, wherein I
1=0.6I
0~ 0.7I
0, by speed of welding by former speed of welding v
0reduce to v gradually
1, wherein v
1=0.3v
0~ 0.4v
0, by wire feed rate by former wire feed rate V
0reduce to V gradually
1, wherein V
1=0.8V
0~ 0.9V
0;
Step 3, proceed to receive arc operation, after once collaborative decay completes, carry out the collaborative decay of secondary immediately, namely within the time of 8s ~ 10s, by welding current by I
1reduce to I gradually
2, wherein I
2=0.4I
0~ 0.5I
0, speed of welding remains on v
1constant, wire feed rate is by V
1reduce to V
2, wherein V
2=0.5V
0~ 0.6V
0;
Step 4, secondary are worked in coordination with after decay completes and are put out electric arc, namely complete girth joint and receive arc welding.
Preferably, the TIG welding procedure of employing is that automatic tungsten anode argon arc welding connects technique.
Preferably, middle thin-wall aluminum alloy housing girth joint completes welding in a week and receives in arc operating process, and welding gun is motionless, and middle thin-wall aluminum alloy housing rotates, and the rotating speed of middle thin-wall aluminum alloy housing is adjustable.
Preferably, complete welding in a week at middle thin-wall aluminum alloy housing girth joint and receive welding wire in arc operating process and carry out wire feed by the mode of automatic feeding, and the wire feeding mode of welding wire and wire feed rate adjustable.
Preferably, the wall thickness of described middle thin-wall aluminum alloy housing is 1.0mm ~ 6.0mm.
Compared with prior art, the invention has the advantages that: in this raising, the TIG welding method of thin-wall aluminum alloy housing girth joint receipts arc quality specify that the opportunity of receiving arc operation, and the operation of receipts arc is subdivided into two operational phases, quantize respectively again to receive in two operational phase processes of arc operation to receive the match parameter that decay is worked in coordination with in arc welding simultaneously, made middle thin-wall aluminum alloy housing girth joint receive arc and be more convenient for operating.This TIG welding method can solve the problem receiving the weld defects such as arc weld cracks, incomplete fusion and pore, improves thin-wall aluminum alloy housing girth joint in TIG welding and receives arc quality, make receipts arc weld equally reach I grade with main ring weld seam.And then thin-wall aluminum alloy case weld repair rate in can effectively reducing, improve product manufacturing efficiency, save production cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of TIG welding method of the present invention.
Fig. 2 is the middle thin-wall aluminum alloy case weld structural representation that the present invention has different-diameter girth joint.
Fig. 3 is that in the present invention, thin-wall aluminum alloy housing girth joint receives arc welding schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
In improving in the present embodiment, thin-wall aluminum alloy housing girth joint receives the TIG welding method of arc quality, and its receipts arc operation comprises once collaborative decay and secondary works in coordination with two stages of decay.Adopt automatic tungsten anode argon arc welding to connect technique for the Al-alloy casing 1 of 2.0mm wall thickness girth joint in this embodiment and carry out welding operation, in whole welding operation process, welding gun is motionless, middle thin-wall aluminum alloy housing 1 rotates, and the rotating speed of middle thin-wall aluminum alloy housing 1 is adjustable, welding wire 2 carries out wire feed by the mode of automatic feeding simultaneously, and the wire feed rate of welding wire 2 is adjustable.
As shown in Figure 1, this TIG welding method specifically comprises the steps:
Step one, as shown in Figure 2, after in adopting existing TIG welding procedure to weld, thin-wall aluminum alloy housing girth joint completes one week, confirms the opportunity of receiving arc, as shown in Figure 3, starts to receive arc operation when welding pool advance side 3 is about to the initial weld seam 4 of fusing;
Step 2, reach step one receipts arc opportunity time, start to carry out the operation of receipts arc, first once decay is worked in coordination with, be specially within the time of 10s, welding current is linearly reduced to 90A gradually by 130A, speed of welding is linearly reduced to 40mm/min gradually by 110mm/min, wire feed rate is linearly reduced to 3060mm/min gradually by 3600mm/min;
Step 3, after once collaborative decay completes, carry out the collaborative decay of secondary immediately, be specially within the time of 8s, welding current is linearly reduced to 65A gradually by 90A, it is constant that speed of welding remains on 40mm/min, and wire feed rate linearly reduces to 2000mm/min gradually by 3060mm/min;
Step 4, secondary are worked in coordination with after decay completes and are put out electric arc, namely complete girth joint and receive arc welding.
Under the control of the match parameter of decay is worked in coordination with in aforementioned receipts arc welding, thin-wall aluminum alloy housing 1 in above-mentioned TIG welding method welding, middle thin-wall aluminum alloy housing girth joint is received arc quality and is equally reached I grade with main ring weld seam, does not occur the weld defects such as crackle, incomplete fusion and pore
Embodiment two
The difference of the present embodiment and embodiment one is only: once in collaborative attenuation process, welding current is linearly reduced to 100A gradually by 150A, speed of welding is linearly reduced to 40mm/min gradually by 110mm/min, wire feed rate is linearly reduced to 3100mm/min gradually by 3700mm/min.
Work in coordination with in attenuation process at secondary, welding current is linearly reduced to 70A gradually by 100A, it is constant that speed of welding remains on 40mm/min, and wire feed rate linearly reduces to 2050mm/min gradually by 3100mm/min.
Under the control of the match parameter of decay is worked in coordination with in receipts arc welding in this embodiment, middle thin-wall aluminum alloy housing girth joint is received arc quality and is still equally reached I grade with main ring weld seam, and does not occur the weld defects such as crackle, incomplete fusion and pore.
Embodiment three
The difference of the present embodiment and embodiment one is only: once in collaborative attenuation process, within the time of 12s, welding current is linearly reduced to 105A gradually by 160A, speed of welding is linearly reduced to 40mm/min gradually by 100mm/min, wire feed rate is linearly reduced to 3200mm/min gradually by 3800mm/min.
Work in coordination with in attenuation process at secondary, within the time of 10s, welding current is linearly reduced to 80A gradually by 105A, it is constant that speed of welding remains on 40mm/min, and wire feed rate linearly reduces to 2100mm/min gradually by 3200mm/min.
Under the control of the match parameter of decay is worked in coordination with in receipts arc welding in this embodiment, middle thin-wall aluminum alloy housing girth joint is received arc quality and is still equally reached I grade with main ring weld seam, and does not occur the weld defects such as crackle, incomplete fusion and pore.
Claims (5)
1. in improving, thin-wall aluminum alloy housing girth joint receives a TIG welding method for arc quality, it is characterized in that comprising the steps:
After thin-wall aluminum alloy housing girth joint completes one week in step one, the welding of employing TIG welding procedure, the opportunity of receiving arc is confirmed, starts to receive arc when welding pool advance side is about to the initial weld seam of fusing and operate;
Step 2, reach step one receipts arc opportunity time, start to carry out the operation of receipts arc, first once work in coordination with decay, namely within the time of 10s ~ 12s, by welding current by former welding current I
0reduce to I gradually
1, wherein I
1=0.6I
0~ 0.7I
0, by speed of welding by former speed of welding v
0reduce to v gradually
1, wherein v
1=0.3v
0~ 0.4v
0, by wire feed rate by former wire feed rate V
0reduce to V gradually
1, wherein V
1=0.8V
0~ 0.9V
0;
Step 3, proceed to receive arc operation, after once collaborative decay completes, carry out the collaborative decay of secondary immediately, namely within the time of 8s ~ 10s, by welding current by I
1reduce to I gradually
2, wherein I
2=0.4I
0~ 0.5I
0, speed of welding remains on v
1constant, wire feed rate is by V
1reduce to V
2, wherein V
2=0.5V
0~ 0.6V
0;
Step 4, secondary are worked in coordination with after decay completes and are put out electric arc, namely complete girth joint and receive arc welding.
2. TIG welding method according to claim 1, is characterized in that: the TIG welding procedure of employing is that automatic tungsten anode argon arc welding connects technique.
3. TIG welding method according to claim 1, it is characterized in that: middle thin-wall aluminum alloy housing girth joint completes welding in a week and receives in arc operating process, welding gun is motionless, and middle thin-wall aluminum alloy housing rotates, and the rotating speed of middle thin-wall aluminum alloy housing is adjustable.
4. TIG welding method according to claim 1, it is characterized in that: complete welding in a week at middle thin-wall aluminum alloy housing girth joint and receive welding wire in arc operating process and carry out wire feed by the mode of automatic feeding, and the wire feeding mode of welding wire and wire feed rate adjustable.
5. TIG welding method according to claim 1, is characterized in that: the wall thickness of described middle thin-wall aluminum alloy housing is 1.0mm ~ 6.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563449.3A CN105081534B (en) | 2015-09-07 | 2015-09-07 | Thin-wall aluminum alloy housing girth joint receives the TIG weld method of arc quality in raising |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563449.3A CN105081534B (en) | 2015-09-07 | 2015-09-07 | Thin-wall aluminum alloy housing girth joint receives the TIG weld method of arc quality in raising |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105081534A true CN105081534A (en) | 2015-11-25 |
| CN105081534B CN105081534B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510563449.3A Expired - Fee Related CN105081534B (en) | 2015-09-07 | 2015-09-07 | Thin-wall aluminum alloy housing girth joint receives the TIG weld method of arc quality in raising |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243694A (en) * | 2017-07-19 | 2017-10-13 | 大族激光科技产业集团股份有限公司 | A kind of stitch welding of automobile galvanized sheet |
| CN107885244A (en) * | 2017-11-20 | 2018-04-06 | 昆山华恒焊接股份有限公司 | Circumferential weld bonding control method, apparatus and system, computer-readable recording medium |
| CN110102923A (en) * | 2019-05-28 | 2019-08-09 | 昆山华恒焊接股份有限公司 | Plasma-TIG double welding gun is applied to the receipts arc control method of circular weld welding |
| CN110899937A (en) * | 2019-12-25 | 2020-03-24 | 云南昆船机械制造有限公司 | Plasma girth welding hole receiving process method |
| CN114012206A (en) * | 2021-11-22 | 2022-02-08 | 潍坊新松机器人自动化有限公司 | Arc-closing method of intelligent welding robot |
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| CN103846528A (en) * | 2014-03-21 | 2014-06-11 | 谢二文 | Annular welding method |
| JP2014159034A (en) * | 2013-02-19 | 2014-09-04 | Nippon Steel & Sumikin Pipeline & Engineering Co Ltd | Mag welding device |
-
2015
- 2015-09-07 CN CN201510563449.3A patent/CN105081534B/en not_active Expired - Fee Related
Patent Citations (5)
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| JP2005095915A (en) * | 2003-09-24 | 2005-04-14 | Hitachi Ltd | Circumferential multilayer sequence welding method, and automatic welding equipment |
| JP2014159034A (en) * | 2013-02-19 | 2014-09-04 | Nippon Steel & Sumikin Pipeline & Engineering Co Ltd | Mag welding device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243694A (en) * | 2017-07-19 | 2017-10-13 | 大族激光科技产业集团股份有限公司 | A kind of stitch welding of automobile galvanized sheet |
| CN107243694B (en) * | 2017-07-19 | 2019-08-30 | 大族激光科技产业集团股份有限公司 | A kind of stitch welding of automobile galvanized sheet |
| CN107885244A (en) * | 2017-11-20 | 2018-04-06 | 昆山华恒焊接股份有限公司 | Circumferential weld bonding control method, apparatus and system, computer-readable recording medium |
| CN110102923A (en) * | 2019-05-28 | 2019-08-09 | 昆山华恒焊接股份有限公司 | Plasma-TIG double welding gun is applied to the receipts arc control method of circular weld welding |
| CN110102923B (en) * | 2019-05-28 | 2021-04-30 | 昆山华恒焊接股份有限公司 | Arc-closing control method for applying plasma-TIG double welding guns to welding of circular weld joint |
| CN110899937A (en) * | 2019-12-25 | 2020-03-24 | 云南昆船机械制造有限公司 | Plasma girth welding hole receiving process method |
| CN114012206A (en) * | 2021-11-22 | 2022-02-08 | 潍坊新松机器人自动化有限公司 | Arc-closing method of intelligent welding robot |
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| CN105081534B (en) | 2017-07-21 |
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