CN112045282B - Processing technology for welding aviation parts by using low-deformation aluminum alloy - Google Patents
Processing technology for welding aviation parts by using low-deformation aluminum alloy Download PDFInfo
- Publication number
- CN112045282B CN112045282B CN202010903951.5A CN202010903951A CN112045282B CN 112045282 B CN112045282 B CN 112045282B CN 202010903951 A CN202010903951 A CN 202010903951A CN 112045282 B CN112045282 B CN 112045282B
- Authority
- CN
- China
- Prior art keywords
- welding
- cover
- box body
- initial
- aluminum alloy
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 106
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title abstract description 14
- 238000012545 processing Methods 0.000 title abstract description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000008439 repair process Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 238000012937 correction Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 33
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 30
- 229910052786 argon Inorganic materials 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009991 scouring Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 244000137852 Petrea volubilis Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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
- B23K9/235—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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a processing technology for welding aviation parts by using low-deformation aluminum alloy, and belongs to the technical field of welding. A processing technology for welding aviation parts by using low-deformation aluminum alloy comprises the following steps: s1, shape correction: the burrs on the four sides of the cover and the box body are removed completely by a scraper or a file, the four sides of the cover are knocked towards the inner side by small iron hammers to be slightly bent inwards into an arc shape, the four corners of the cover and the box body are shaped to be in accordance with each other in transition, and the cover and the box body are matched without dislocation; s2, cleaning: cleaning the welding parts of the cover and the box body with acetone; s3, clamping: placing the box body and the cover into a tool, and after the box body and the cover are placed in place, opening the box body from inside to outside and contacting the box body with the cover to enable the welding edge of the box body and the cover to be in close contact; s4, primary welding; s5, machine welding; s6, repair welding; and S7, taking the parts. The invention has the advantages of small deformation during welding and good welding tightness.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a processing technology for welding aviation parts by using low-deformation aluminum alloy.
Background
The aviation parts are relatively precise parts, and have strict dimensional requirements in the machining process, and the machining process is different from the traditional machining mode, so that the requirements are higher.
The functions of the airplane are more and more diversified, various box bodies for containing objects are required to be installed on the airplane, the sealing performance and the size of the box bodies are strictly regulated, and the biggest problem at present is that parts of the box bodies are seriously deformed in the welding process and the sealing performance of the box bodies is insufficient.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a processing technology of a low-deformation aluminum alloy welding aviation part, and has the characteristics of low deformation and good welding tightness.
The purpose of the invention can be realized by the following technical scheme:
the machining process for welding the aviation parts by using the low-deformation aluminum alloy is characterized by comprising the following steps of:
s1, shape correction: the burrs on the four sides of the cover and the box body are removed completely by a scraper or a file, the four sides of the cover are knocked towards the inner side by small iron hammers to be slightly bent inwards into an arc shape, the four corners of the cover and the box body are shaped to be in accordance with each other in transition, and the cover and the box body are matched without dislocation;
s2, cleaning: cleaning the welding parts of the cover and the box body with acetone;
s3, clamping: placing the box body and the cover into a tool, and after the box body and the cover are placed in place, opening the box body from inside to outside and contacting the box body with the cover to enable the welding edge of the box body and the cover to be in close contact;
s4, primary welding: manually welding an initial welding point of 5-10mm to the box body and the cover, feeding protective gas which is a mixed gas of 2% of hydrogen and 98% of argon into the initial welding point 13-16s ahead of time during manual welding, delaying gas interruption for 10s after welding is finished, and feeding the protective gas at a flow rate of 3-6L/min;
s5, machine welding: starting the welding robot, welding along the joint of the box body and the cover from the initial welding point until the welding returns to the initial welding point again, feeding protective gas in advance for 13-16s in the welding process, wherein the protective gas is mixed gas of 2% of hydrogen and 98% of argon, and delaying gas interruption for 10s after the welding is finished;
s6, repair welding: wiping the area of the initial welding point by using acetone, and then manually welding the initial welding point in a repair mode;
s7, taking a piece: and taking out the welded finished product box.
In the processing technology of the low-deformation aluminum alloy welding aviation part, in step S5, the initial current is 4-7A, the welding motor is 9-11A, and the arc-extinguishing current is 4-7A.
In the processing technology for welding the aviation parts by using the low-deformation aluminum alloy, in step S5, the gas flow in the robot welding gun is 10-15L/min.
In the processing technology of the low-deformation aluminum alloy welding aviation part, in the steps S4 and S5, during welding, the tool sends argon from inside to outside, and the argon flow is 3-6L/min.
In the processing technology of the low-deformation aluminum alloy welding aviation part, in the steps S4 and S5, argon is fed in 13-16S in advance, and the gas is cut off 10S later.
In the processing technology of the low-deformation aluminum alloy welding aviation part, in step S7, a small iron hammer is used to knock the part from the inside to smooth and eliminate stress.
In the processing technology of the low-deformation aluminum alloy welding aviation part, in step S7, 200W light is used for irradiating the welding seam to test whether light leakage exists, if repair welding is needed, the repair welding position is wiped by scouring cloth, external burrs can be polished by No. 320 abrasive paper, and external blackening can be removed by brushing small steel.
Compared with the prior art, the invention has the following advantages:
through this processing technology, protective gas is sent into in advance to outside when welding to and carry argon gas in inside, reduce the contact with the air when making its welding, avoid the oxidation of air, effectively avoid the splice to blacken, inside and outside air feed simultaneously, can reduce the temperature of splice fast, metal deformation range when reducing the welding. Through the feeding of gas, the deformation is reduced, and the sealing performance can be better during welding.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figure 1, the processing technology for welding the aviation parts by using the low-deformation aluminum alloy comprises the following steps:
s1, shape correction: the burrs on the four sides of the cover and the box body are removed completely by a scraper or a file, the four sides of the cover are knocked towards the inner side by small iron hammers to be slightly bent inwards into an arc shape, the four corners of the cover and the box body are shaped to be in accordance with each other in transition, and the cover and the box body are matched without dislocation;
s2, cleaning: cleaning the welding parts of the cover and the box body with acetone;
s3, clamping: placing the box body and the cover into a tool, and after the box body and the cover are placed in place, opening the box body from inside to outside and contacting the box body with the cover to enable the welding edge of the box body and the cover to be in close contact;
s4, primary welding: manually welding an initial welding point of 5-10mm to the box body and the cover, feeding protective gas which is a mixed gas of 2% of hydrogen and 98% of argon into the initial welding point in advance for 15s during manual welding, delaying gas interruption for 10s after the welding is finished, and feeding the protective gas with the flow of 5L/min;
s5, machine welding: starting the welding robot, welding along the joint of the box body and the cover from the initial welding point until the welding returns to the initial welding point again, feeding protective gas in advance for 15s in the welding process, wherein the protective gas is mixed gas of 2% of hydrogen and 98% of argon, and delaying the gas interruption for 10s after the welding is finished;
s6, repair welding: wiping the area of the initial welding point by using acetone, and then manually welding the initial welding point in a repair mode;
s7, taking a piece: and taking out the welded finished product box.
Specifically, in step S5, the initial current is 4-7A, the welding motor is 9-11A, and the arc-extinguishing current is 4-7A.
Specifically, in step S5, the gas flow rate in the robot welding gun is 13L/min.
Specifically, in steps S4 and S5, during welding, the tool sends argon from inside to outside, and the argon flow rate is 5L/min.
Specifically, in steps S4 and S5, argon gas is supplied 15S earlier and the gas cut is delayed 10S later.
Specifically, in step S7, a small hammer is used to knock the material from the inside to flatten and eliminate the stress.
Specifically, in step S7, 200W light is used to irradiate the test weld seam to detect the existence of light leakage, if repair welding is needed, the repair welding seam is wiped with scouring cloth, external burrs can be polished with 320# abrasive paper, and the external blackening can be removed with a small steel brush.
The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (2)
1. The machining process for welding the aviation parts by using the low-deformation aluminum alloy is characterized by comprising the following steps of:
s1, shape correction: the burrs on the four sides of the cover and the box body are removed completely by a scraper or a file, the four sides of the cover are knocked towards the inner side by small iron hammers to be slightly bent inwards into an arc shape, the four corners of the cover and the box body are shaped to be in accordance with each other in transition, and the cover and the box body are matched without dislocation;
s2, cleaning: cleaning the welding parts of the cover and the box body with acetone;
s3, clamping: placing the box body and the cover into a tool, and after the box body and the cover are placed in place, opening the box body from inside to outside and contacting the box body with the cover to enable the welding edge of the box body and the cover to be in close contact;
s4, primary welding: manually welding an initial welding point of 5-10mm to the box body and the cover, feeding protective gas which is a mixed gas of 2% of hydrogen and 98% of argon into the initial welding point 13-16s ahead of time during manual welding, delaying gas interruption for 10s after welding is finished, and feeding the protective gas at a flow rate of 3-6L/min;
s5, machine welding: starting the welding robot, welding along the joint of the box body and the cover from the initial welding point until the welding returns to the initial welding point again, feeding protective gas in advance for 13-16s in the welding process, wherein the protective gas is mixed gas of 2% of hydrogen and 98% of argon, and delaying gas interruption for 10s after the welding is finished;
s6, repair welding: wiping the area of the initial welding point by using acetone, and then manually welding the initial welding point in a repair mode;
s7, taking a piece: taking out the welded finished product box;
in the steps S4 and S5, during welding, the tool sends argon from inside to outside, and the argon flow is 3-6L/min;
in step S5, the initial current is 4-7A, the welding current is 9-11A, and the arc-extinguishing current is 4-7A;
in step S5, the gas flow in the robot welding gun is 10-15L/min;
in step S7, a small hammer is used to knock the material from the inside to flatten the material and eliminate the stress.
2. The process for manufacturing a welded aviation component or part from a low-deformation aluminum alloy as claimed in claim 1, wherein in step S7, 200W light is used to illuminate the weld seam to test the existence of light leakage, if repair welding is required, the repair welding is wiped with scouring cloth, the external burr is sanded with 320# sand paper, and the external blackening is brushed away with small steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010903951.5A CN112045282B (en) | 2020-09-01 | 2020-09-01 | Processing technology for welding aviation parts by using low-deformation aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010903951.5A CN112045282B (en) | 2020-09-01 | 2020-09-01 | Processing technology for welding aviation parts by using low-deformation aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112045282A CN112045282A (en) | 2020-12-08 |
| CN112045282B true CN112045282B (en) | 2022-03-08 |
Family
ID=73607153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010903951.5A Active CN112045282B (en) | 2020-09-01 | 2020-09-01 | Processing technology for welding aviation parts by using low-deformation aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112045282B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414472A (en) * | 2021-06-18 | 2021-09-21 | 贵州和顺祥制造有限责任公司 | Processing technology for welding aviation parts by using low-deformation aluminum alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9813172A (en) * | 1997-11-03 | 2000-08-22 | Messer Griesheim Gmbh | Tig welding inert gas |
| CN102500881A (en) * | 2011-11-21 | 2012-06-20 | 北京新风机械厂 | Thin-wall aluminum alloy three-plate butting one-time fusion welding process method |
| CN105458469A (en) * | 2015-12-10 | 2016-04-06 | 中国电子科技集团公司第四十八研究所 | Welded aluminum alloy box and welding method |
| CN108620755A (en) * | 2018-04-09 | 2018-10-09 | 浙江大学 | The restorative procedure that aluminum plate fin type soldering heat exchanger core locally leaks outside |
| CN109483019A (en) * | 2018-12-03 | 2019-03-19 | 江西洪都航空工业集团有限责任公司 | The non-silk filling Automatic Pulsed Argon Arc Welding technique of 1~3mm thickness titanium alloy under a kind of atmospheric environment |
| CN110280871A (en) * | 2019-07-08 | 2019-09-27 | 上海空间推进研究所 | A kind of space flight propulsion subsystem Aluminum alloys tank high quality arc welding process method |
| CN110920380A (en) * | 2019-12-09 | 2020-03-27 | 江麓机电集团有限公司 | Armored vehicle fuel tank and welding process thereof |
-
2020
- 2020-09-01 CN CN202010903951.5A patent/CN112045282B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9813172A (en) * | 1997-11-03 | 2000-08-22 | Messer Griesheim Gmbh | Tig welding inert gas |
| CN102500881A (en) * | 2011-11-21 | 2012-06-20 | 北京新风机械厂 | Thin-wall aluminum alloy three-plate butting one-time fusion welding process method |
| CN105458469A (en) * | 2015-12-10 | 2016-04-06 | 中国电子科技集团公司第四十八研究所 | Welded aluminum alloy box and welding method |
| CN108620755A (en) * | 2018-04-09 | 2018-10-09 | 浙江大学 | The restorative procedure that aluminum plate fin type soldering heat exchanger core locally leaks outside |
| CN109483019A (en) * | 2018-12-03 | 2019-03-19 | 江西洪都航空工业集团有限责任公司 | The non-silk filling Automatic Pulsed Argon Arc Welding technique of 1~3mm thickness titanium alloy under a kind of atmospheric environment |
| CN110280871A (en) * | 2019-07-08 | 2019-09-27 | 上海空间推进研究所 | A kind of space flight propulsion subsystem Aluminum alloys tank high quality arc welding process method |
| CN110920380A (en) * | 2019-12-09 | 2020-03-27 | 江麓机电集团有限公司 | Armored vehicle fuel tank and welding process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112045282A (en) | 2020-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104722895A (en) | TIG welding method applicable to moderately thick aluminum alloy | |
| CN112045282B (en) | Processing technology for welding aviation parts by using low-deformation aluminum alloy | |
| CN101722351A (en) | Method for controlling quality of linerless single-sided welding double-sided molding backing weld seam | |
| CN102909478A (en) | Welding method for thick-wall small-diameter product | |
| CN104308327A (en) | Technique for preventing defects of surfacing wear-resistant layer of part | |
| CN111545918B (en) | Laser polishing and laser shock strengthening manufacturing method for welding or additive repairing area | |
| CN105014205A (en) | Corner butt joint TIG welding method | |
| CN115741111A (en) | Hot-pressing superplastic integrated forming method for titanium alloy special-shaped curved surface part | |
| CN112620944B (en) | laser-MIG (Metal-inert gas) composite welding method for ship aluminum alloy medium plate | |
| CN112296507B (en) | Friction stir welding method for aluminum alloy water-cooled motor shell | |
| CN110328492B (en) | A-TIG welding repair compound method for long cracks of aero-engine turbine rear casing support plate | |
| CN108015421A (en) | A kind of welding procedure of electrical switchgear aluminium alloy box | |
| CN201304548Y (en) | Process structure of girth welding | |
| CN112496247A (en) | Hot forging forming method for titanium alloy aviation three-way elbow joint | |
| CN109128506B (en) | Aluminum alloy laser self-melting welding process without adding shielding gas | |
| CN107243694A (en) | A kind of stitch welding of automobile galvanized sheet | |
| CN109848525B (en) | Single-side welding and double-side free forming welding method for 3-5mm stainless steel plate | |
| CN106425042A (en) | Thick pipe welding process of high-strength steel | |
| CN110614439A (en) | High-reflectivity material laser connection method and device | |
| CN114043084B (en) | Method for laser welding of aluminum alloy cooling plate | |
| CN112281156B (en) | Laser casting repair method for conformal mold | |
| CN112475808B (en) | Process suitable for industrial production of aluminum alloy/steel composite structural member and application | |
| CN113560734A (en) | Ultrasonic-assisted laser-double-electric-arc hybrid welding equipment and method for inhibiting pore defects | |
| CN110666455A (en) | Laser welding process for cover plate and shell of intermediate frequency amplifier | |
| CN109352180A (en) | A kind of compound sealing method of edge joint laser-electric arc of internal pressurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Zhifang Inventor after: Jin Yiting Inventor after: Yang Hu Inventor after: Zhong Xujie Inventor after: Jin Shan Inventor after: He Yonggang Inventor after: Li Kui Inventor after: Xia Feng Inventor after: Wang Jinlong Inventor before: Zhong Xujie Inventor before: Jin Shan Inventor before: He Yonggang Inventor before: Li Kui Inventor before: Xia Feng Inventor before: Wang Jinlong |
|
| CB03 | Change of inventor or designer information |