CN112139629A - High-frequency pulse three-wire indirect electric arc welding method and device - Google Patents
High-frequency pulse three-wire indirect electric arc welding method and device Download PDFInfo
- Publication number
- CN112139629A CN112139629A CN202011010213.4A CN202011010213A CN112139629A CN 112139629 A CN112139629 A CN 112139629A CN 202011010213 A CN202011010213 A CN 202011010213A CN 112139629 A CN112139629 A CN 112139629A
- Authority
- CN
- China
- Prior art keywords
- wire
- frequency pulse
- welding
- pulse power
- arc
- 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.)
- Pending
Links
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
- B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to the technical field of welding, and provides a high-frequency pulse three-wire indirect electric arc welding method and a device, wherein two high-frequency pulse welding power supplies are adopted to ensure that the total current range is 250-600A; the wire feeding speed of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min; when the two high-frequency pulse power supplies are in pulse peak current, the magnetic field around the welding wire has a strong effect on arc compression, the arc energy density is high, the base metal is heated, and when the two high-frequency pulse power supplies are in pulse base current, the magnetic field around the welding wire weakens the effect on arc compression but has a high pulse frequency, so that arc form compression can be realized by adopting the high-frequency pulse power supplies, and the arc energy density is improved; the invention realizes the compression of the three-wire indirect arc form, improves the energy density of the three-wire indirect arc and solves the problem of insufficient indirect arc heat input.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a high-frequency pulse three-wire indirect electric arc welding method and device.
Background
Different from the traditional welding method, the workpiece of indirect electric arc welding is not connected with a power supply, and electric arc is established between welding wires; because the welding workpiece is not connected with a power supply, most of heat generated by the welding power supply is used for melting the welding wire, so the indirect arc welding has the advantage of high welding wire deposition rate, but the base metal is not connected with the power supply, the heating of the base metal mainly depends on the heat generated by the electric arc, and the defect of non-fusion is easily generated, thereby the application of the indirect arc welding in the actual production is seriously limited.
Aiming at the problem of insufficient heat input of a double-wire indirect arc, the invention patent (application number is 201510145041.4) provides a three-wire indirect arc welding method, a main wire is connected with the negative electrodes of two direct current power supplies, two side wires are respectively connected with the positive electrodes of the two direct current power supplies, and electric arcs are respectively established between the main wire and the two side wires.
Aiming at the problem of three-wire indirect arc form divergence, the invention patent (application number 201811075326.5) provides a novel three-wire indirect arc welding method, wherein a main wire is connected with the anodes of two direct current power supplies, and side wires are respectively connected with the cathodes of the two direct current power supplies, the power supply connection mode improves the distribution of a magnetic field and an electric field around a welding wire, so that two indirect arcs established by the main wire and the two side wires are combined together, the three-wire indirect arc energy density is improved, the heat input of the three-wire indirect arc to a base metal is further increased, although the two indirect arcs are successfully combined together, one welding power supply adopts a pulse power supply, the other welding power supply adopts a common direct current power supply, the single pulse power supply has limited arc form regulation and control capacity, and the welding parameter interval for realizing stable welding is smaller.
Therefore, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-frequency pulse three-wire indirect electric arc welding method and a high-frequency pulse three-wire indirect electric arc welding device.
The invention provides a high-frequency pulse three-wire indirect electric arc welding method, which comprises the following steps:
s1: the main wire is connected with the anodes of the two high-frequency pulse power supplies, and the two side wires are respectively connected with the cathodes of the two high-frequency pulse power supplies;
s2: simultaneously starting the two high-frequency pulse power supplies to ensure that the phases of the two high-frequency pulse power supplies are consistent;
s3: the main wire welding current is the sum of the two side wire welding currents, and the total welding current is kept between 250A and 600A;
s4: welding the workpiece;
s5: the wire feeding speed of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min;
s6: the welding speed is controlled between 0.5m/min and 1m/min or between 2.5m/min and 4 m/min;
preferably, the parameter range of the high-frequency pulse frequency is 200HZ-2000 HZ.
Preferably, the shielding gas used in the welding process of the welding method is a mixture of CO2 and Ar.
Preferably, the mixed gas is 80% of CO2 and 20% of Ar mixed gas.
The invention also comprises a device for realizing the high-frequency pulse three-wire indirect electric arc welding method, which comprises a first high-frequency pulse power supply and a second high-frequency pulse power supply, wherein the positive electrodes of the first high-frequency pulse power supply and the second high-frequency pulse power supply are respectively connected with the main wire; and the negative electrode of the high-frequency pulse power supply I is connected with the left wire, and the negative electrode of the high-frequency pulse power supply II is connected with the right wire.
As a preferred scheme, the left side silk with the main silk constitutes 65 contained angles, the right side silk with the main silk constitutes 65 contained angles, can make welding process more stable.
As a preferable scheme, the wire feeding speed of the main wire ranges from 4m/min to 14 m/min; the speed ranges of the left wire and the right wire are 6 m/min-12 m/min;
as a preferable scheme, the wire feeding speed range of the main wire may be further: 16 m/min-17 m/min.
Preferably, the parameter range of the high-frequency pulse frequency is 200HZ-2000 HZ.
Due to the adoption of the technical scheme, the high-frequency pulse three-wire indirect electric arc welding method and the device adopt two high-frequency pulse welding power supplies, and ensure that the total current range is 250-600A; the wire feeding speed range of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min; when welding, two high-frequency pulse power supplies are started simultaneously to ensure that the phases of the two high-frequency pulse power supplies are consistent, when the two high-frequency pulse power supplies are in pulse peak current, the magnetic field around the welding wire has stronger action on electric arc compression, and the electric arc energy density is higher, the heating effect on the base metal is strong, when the two high-frequency pulse power supplies are in pulse base value current, although the compression effect of the magnetic field around the welding wire on the electric arc is weakened, but the pulse frequency is large, the welding current is quickly changed from a basic value to a peak value, the electric arc is compressed again by the peak current which is quickly converted before the electric arc expands, the welding current is quickly changed from the basic value to the peak value, the electric arc is compressed again by the peak current which is quickly converted before the electric arc expands, therefore, the high-frequency pulse power supply can realize the arc form compression and improve the energy density of the arc, and the parameter range of the high-frequency pulse frequency is 200Hz-2000 Hz; the invention realizes the compression of the three-wire indirect arc form, improves the energy density of the three-wire indirect arc and solves the problem of insufficient indirect arc heat input.
Drawings
FIG. 1 is a schematic diagram of a high frequency pulsed three wire indirect arc welding apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a high-frequency pulse three-wire indirect arc welding device according to the present invention;
1. high-frequency pulse power supply I2, high-frequency pulse power supply II 3 and main wire
4. A left side wire 5, a right side wire 6 and a base material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the installation methods and technical terms mentioned in the present invention are technical terms that are already clearly known in the technical field, and thus, the explanation thereof is not repeated. Moreover, the same reference numerals are used for the same components, which do not affect and should not constitute an exact understanding of the technical solutions for a person skilled in the art.
The first embodiment is as follows:
the invention provides a high-frequency pulse three-wire indirect electric arc welding method and a device, which adopt two high-frequency pulse welding power supplies, ensure a proper total current range and speed ranges of a main wire and an edge wire, realize compression of three-wire indirect electric arc forms, improve the energy density of three-wire indirect electric arcs and solve the problem of insufficient indirect electric arc heat input.
The invention provides a high-frequency pulse three-wire indirect electric arc welding method, which comprises the following steps:
s1: the main wire is connected with the anodes of the two high-frequency pulse power supplies, and the two side wires are respectively connected with the cathodes of the two high-frequency pulse power supplies;
s2: simultaneously starting the two high-frequency pulse power supplies to ensure that the phases of the two high-frequency pulse power supplies are consistent;
s3: the main wire welding current is the sum of the two side wire welding currents, and the total welding current is kept between 250A and 600A;
s4: welding the workpiece;
s5: the wire feeding speed of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min;
s6: the welding speed is controlled between 0.5m/min and 1m/min or between 2.5m/min and 4 m/min.
Preferably, the total welding current is maintained between 650A and 700A.
Preferably, the wire feeding speed of the main wire can be controlled between 16m/min and 17 m/min.
Preferably, the parameter range of the high-frequency pulse frequency is 200HZ-2000 HZ.
Preferably, the shielding gas used in the welding process of the welding method is a mixture of CO2 and Ar.
Preferably, the mixed gas is 80% of CO2 and 20% of Ar mixed gas.
The high-frequency pulse three-wire indirect electric arc welding method ensures that the total current range is 250A-600A; the speed range of the main wire is 4m/min to 14m/min, and the wire feeding speed of the side wire is controlled to be 6m/min to 12 m/min; during welding, two high-frequency pulse power supplies are started simultaneously, the phases of the two high-frequency pulse power supplies are ensured to be consistent, and the range of the high-frequency pulse frequency parameter is 200Hz-2000 Hz; the method realizes the compression of the three-wire indirect arc form, improves the energy density of the three-wire indirect arc, and solves the problem of insufficient indirect arc heat input.
Example 2:
the invention also comprises a device for realizing the high-frequency pulse three-wire indirect electric arc welding method, which comprises a high-frequency pulse power supply I1 and a high-frequency pulse power supply II 2, wherein the positive electrodes of the high-frequency pulse power supply I1 and the high-frequency pulse power supply II 2 are respectively connected with the main wire 3; the negative electrode of the high-frequency pulse power supply I1 is connected with the left wire 4, and the negative electrode of the high-frequency pulse power supply II 2 is connected with the right wire 5; the welding parent metal 6 is not contacted with the high-frequency pulse power supply I1 and the high-frequency pulse power supply II 2; the electric field that produces between main filament 3 and the limit silk can make the electric arc that main filament and both sides silk established can deflect to the main filament side, and two indirect electric arcs can compound together and form an indirect electric arc, and two high frequency pulse power supplies all have the compression effect to the electric arc simultaneously, can make the indirect electric arc form of establishing between main filament and limit silk littleer, and luminance is bigger, has bigger energy density, produces bigger fusion depth.
As a preferable scheme, the included angle between the left side wire 4 and the main wire 3 is 65 degrees, and the included angle between the right side wire 5 and the main wire is 65 degrees; the welding process can be made more stable.
As a preferable scheme, the wire feeding speed of the main wire 3 ranges from 4m/min to 14 m/min; the wire feeding speed ranges from 6m/min to 12m/min for the left wire 4 and the right wire 5;
as a preferable scheme, the wire feeding speed range of the main wire 3 may be further: 16 m/min-17 m/min.
Preferably, the parameter range of the high-frequency pulse frequency is 200HZ-2000 HZ.
Example 3:
the embodiment is a specific welding process, three welding wires are ER50-6 in model, the diameter of each welding wire is 1.2mm, two welding power supplies are high-frequency pulse power supplies, the pulse frequency is 500Hz, and the protective gas is a mixed gas of 80% CO2 and 20% Ar; the plate type is Q235, the plate size is 300mm multiplied by 150mm multiplied by 3mm, the total welding current is 650A, and the welding speed is 3 m/min; after repeated experiments, the results obtained in this example are: the welded plate has the advantages of uniform and continuous surface molding, good back fusion and no defective welding seam.
Due to the adoption of the technical scheme, the high-frequency pulse three-wire indirect electric arc welding method and the device adopt two high-frequency pulse welding power supplies, and ensure that the total current range is 250-600A; the wire feeding speed range of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min; when welding, two high-frequency pulse power supplies are started simultaneously to ensure that the phases of the two high-frequency pulse power supplies are consistent, when the two high-frequency pulse power supplies are in pulse peak current, the magnetic field around the welding wire has stronger action on electric arc compression, and the electric arc energy density is higher, the heating effect on the base metal is strong, when the two high-frequency pulse power supplies are in pulse base value current, although the compression effect of the magnetic field around the welding wire on the electric arc is weakened, but the pulse frequency is large, the welding current is quickly changed from a basic value to a peak value, the electric arc is compressed again by the peak current which is quickly converted before the electric arc expands, the welding current is quickly changed from the basic value to the peak value, the electric arc is compressed again by the peak current which is quickly converted before the electric arc expands, therefore, the high-frequency pulse power supply can realize the arc form compression and improve the energy density of the arc, and the parameter range of the high-frequency pulse frequency is 200Hz-2000 Hz; the invention realizes the compression of the three-wire indirect arc form, improves the energy density of the three-wire indirect arc and solves the problem of insufficient indirect arc heat input.
The specific beneficial effects are summarized as follows:
(1) two high-frequency pulse welding power supplies are adopted, so that the indirect electric arc is further compressed, and the total current range is ensured to be 250-600A; the wire feeding speed range of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min; further improves the energy density of the three-wire indirect electric arc, and can realize higher-speed welding.
(2) The pulse three-wire indirect electric arc is established, relatively small process parameter intervals of the indirect electric arc welding are obtained through repeated tests and calculation, and the electric arc form and the heat input quantity to the base metal can be accurately controlled by adjusting the pulse frequency.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (8)
1. A high-frequency pulse three-wire indirect electric arc welding method is characterized by comprising the following steps:
s1: the main wire is connected with the anodes of the two high-frequency pulse power supplies, and the two side wires are respectively connected with the cathodes of the two high-frequency pulse power supplies;
s2: simultaneously starting the two high-frequency pulse power supplies to ensure that the phases of the two high-frequency pulse power supplies are consistent;
s3: the main wire welding current is the sum of the two side wire welding currents, and the total welding current is kept between 250A and 600A;
s4: welding the workpiece;
s5: the wire feeding speed of the main wire is controlled to be 4-14 m/min, and the wire feeding speed of the side wire is controlled to be 6-12 m/min;
s6: the welding speed is controlled between 0.5m/min and 1m/min or between 2.5m/min and 4 m/min.
2. A method for high frequency pulsed three wire indirect arc welding according to claim 1, wherein the parameter range of the high frequency pulse frequency is 200HZ to 2000 HZ.
3. A high frequency pulse three wire indirect arc welding method according to claim 2, wherein the shielding gas used in the welding process is a mixture of CO2 and Ar.
4. A high frequency pulsed three wire indirect arc welding method according to claim 3, wherein the gas mixture is 80% CO2 and 20% Ar gas mixture.
5. An apparatus for carrying out a high frequency pulse three wire indirect arc welding method according to any one of claims 1 to 4, wherein the apparatus comprises a first high frequency pulse power source (1) and a second high frequency pulse power source (2), and the positive electrodes of the first high frequency pulse power source (1) and the second high frequency pulse power source (2) are respectively connected with a main wire (3); the negative electrode of the high-frequency pulse power supply I (1) is connected with the left side wire (4), and the negative electrode of the high-frequency pulse power supply II (2) is connected with the right side wire (5).
6. The device according to claim 5, characterized in that the angle between the left side wire (4) and the main wire (3) is 65 °, and the angle between the right side wire (5) and the main wire (3) is 65 °.
7. The device according to claim 6, characterized in that the wire feed speed of the main wire (3) ranges from 4m/min to 14 m/min; the speed range of the left wire (4) and the right wire (5) is 6 m/min-12 m/min.
8. The device according to any one of claims 6 to 7, wherein the parameter range of the high frequency pulse frequency is 200Hz to 2000 Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011010213.4A CN112139629A (en) | 2020-09-23 | 2020-09-23 | High-frequency pulse three-wire indirect electric arc welding method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011010213.4A CN112139629A (en) | 2020-09-23 | 2020-09-23 | High-frequency pulse three-wire indirect electric arc welding method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112139629A true CN112139629A (en) | 2020-12-29 |
Family
ID=73896167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011010213.4A Pending CN112139629A (en) | 2020-09-23 | 2020-09-23 | High-frequency pulse three-wire indirect electric arc welding method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112139629A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732446A (en) * | 2021-08-25 | 2021-12-03 | 中国船舶重工集团公司第七二五研究所 | Bypass coupling three-wire indirect electric arc welding method with controllable electric arc space structure |
| CN114160923A (en) * | 2021-12-29 | 2022-03-11 | 南京理工大学 | Triangular three-wire synergetic efficient MIG electric arc additive device and method |
| CN115070173A (en) * | 2022-07-09 | 2022-09-20 | 南京理工大学 | Superaudio pulse square wave MIG assisted three-wire electric arc additive manufacturing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124547A (en) * | 1974-08-24 | 1976-02-27 | Kawasaki Steel Co | KORYUSANDENKYOKUKOSOKUSABUMAAJI AAKUYOSETSUHO |
| JP2002219571A (en) * | 2001-01-19 | 2002-08-06 | Daihen Corp | Control method for three electrode arc welding |
| CN101045267A (en) * | 2007-04-30 | 2007-10-03 | 上海冠达尔钢结构有限公司 | Three-wire submerged-arc welding method for thick plate, low alloy, high strength steel |
| CN102528246A (en) * | 2012-03-07 | 2012-07-04 | 天津大学 | Three-wire welding system for vertical welding and welding process of three-wire welding system |
| KR20130015226A (en) * | 2011-08-02 | 2013-02-13 | 에스티엑스조선해양 주식회사 | 3-pole fillet auto-carriage and apparatus for multi-electrode arc welding using 3-pole fillet auto-carriage |
| CN103111729A (en) * | 2013-03-08 | 2013-05-22 | 北京工业大学 | Three tungsten electrode tungsten inert gas (TIG) electric arc and high frequency electric arc hybrid welding method |
| CN104772552A (en) * | 2015-03-30 | 2015-07-15 | 大连理工大学 | Three-wire gas shielded indirect electric arc welding method, device, overlay welding method and narrow gap welding method |
| CN109079287A (en) * | 2018-09-14 | 2018-12-25 | 大连理工大学 | Three gas shield indirect arc welding method, apparatus of one kind and its application |
| CN110497065A (en) * | 2019-08-30 | 2019-11-26 | 大连理工大学 | A kind of three gas shield indirect arc welding method, apparatus of Variable Polarity and its application |
-
2020
- 2020-09-23 CN CN202011010213.4A patent/CN112139629A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124547A (en) * | 1974-08-24 | 1976-02-27 | Kawasaki Steel Co | KORYUSANDENKYOKUKOSOKUSABUMAAJI AAKUYOSETSUHO |
| JP2002219571A (en) * | 2001-01-19 | 2002-08-06 | Daihen Corp | Control method for three electrode arc welding |
| CN101045267A (en) * | 2007-04-30 | 2007-10-03 | 上海冠达尔钢结构有限公司 | Three-wire submerged-arc welding method for thick plate, low alloy, high strength steel |
| KR20130015226A (en) * | 2011-08-02 | 2013-02-13 | 에스티엑스조선해양 주식회사 | 3-pole fillet auto-carriage and apparatus for multi-electrode arc welding using 3-pole fillet auto-carriage |
| CN102528246A (en) * | 2012-03-07 | 2012-07-04 | 天津大学 | Three-wire welding system for vertical welding and welding process of three-wire welding system |
| CN103111729A (en) * | 2013-03-08 | 2013-05-22 | 北京工业大学 | Three tungsten electrode tungsten inert gas (TIG) electric arc and high frequency electric arc hybrid welding method |
| CN104772552A (en) * | 2015-03-30 | 2015-07-15 | 大连理工大学 | Three-wire gas shielded indirect electric arc welding method, device, overlay welding method and narrow gap welding method |
| CN109079287A (en) * | 2018-09-14 | 2018-12-25 | 大连理工大学 | Three gas shield indirect arc welding method, apparatus of one kind and its application |
| CN110497065A (en) * | 2019-08-30 | 2019-11-26 | 大连理工大学 | A kind of three gas shield indirect arc welding method, apparatus of Variable Polarity and its application |
Non-Patent Citations (1)
| Title |
|---|
| 胡成辉: "《中国优秀博硕学位论文全文数据库（硕士）工程科技Ⅰ辑》", 15 February 2020 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732446A (en) * | 2021-08-25 | 2021-12-03 | 中国船舶重工集团公司第七二五研究所 | Bypass coupling three-wire indirect electric arc welding method with controllable electric arc space structure |
| CN113732446B (en) * | 2021-08-25 | 2023-03-10 | 中国船舶重工集团公司第七二五研究所 | Bypass coupling three-wire indirect electric arc welding method with controllable electric arc space structure |
| CN114160923A (en) * | 2021-12-29 | 2022-03-11 | 南京理工大学 | Triangular three-wire synergetic efficient MIG electric arc additive device and method |
| CN115070173A (en) * | 2022-07-09 | 2022-09-20 | 南京理工大学 | Superaudio pulse square wave MIG assisted three-wire electric arc additive manufacturing method |
| CN115070173B (en) * | 2022-07-09 | 2024-04-05 | 南京理工大学 | Ultrasonic pulse square wave MIG auxiliary three-wire arc material-increasing process method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112139629A (en) | High-frequency pulse three-wire indirect electric arc welding method and device | |
| CN101862886B (en) | Hot wire consumable electrode gas protection welding method and realization device thereof | |
| CN103203529B (en) | Non-melt pole electrical arc and the cross-linked welding method of twin-wire melting pole electric arc | |
| CN1819887B (en) | Arc welding control method and arc welding device | |
| CN107999962B (en) | A kind of method for laser welding of double CMT/ mariages CMT auxiliary | |
| CN111716003A (en) | Aluminum alloy pulse laser-TIG electric arc composite additive manufacturing device and method | |
| CN107584195B (en) | Alternating electric arc fuse argon tungsten-arc welding system and method for aluminum alloy piping welding | |
| AU2020103796A4 (en) | A Laser-GMA Arc Composite Heat Source Wire-filled Welding Method | |
| CN108555421A (en) | A kind of droplet transfer control device and its control method based on pulse matching electrode TIG | |
| CN103521885A (en) | Welding method with indirect arc between double welding wires alternately changed to form by-pass arc | |
| CN102371421A (en) | Cold metal transition welding method and device thereof | |
| CN107803593B (en) | high-frequency-laser wire filling composite welding device and method | |
| CN114012266A (en) | Thick plate laser arc composite double-side synchronous transverse welding method and device | |
| CN106914708A (en) | Laser twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods | |
| CN111515540B (en) | Laser fuse welding device and welding method for two sides of thin plate T-shaped joint | |
| CN108907414A (en) | A kind of double tungsten electrode TIG narrow gap welding methods of the high speed of welding of high deposition efficiency | |
| CN111673283A (en) | Multilayer laser-TIG (tungsten inert gas) hybrid welding device and method for aluminum alloy thick plate | |
| WO2022257669A1 (en) | Pulsed wire feeding method based on laser-gma arc composite heat source wire-filled welding | |
| WO2021036206A1 (en) | Variable-polarity three-wire gas-shielded indirect arc welding method and device, and use thereof | |
| CN107570874A (en) | Laser-arc hybrid welding process | |
| CN106493457B (en) | Composite arc device and its welding method under a kind of protection of argon gas | |
| CN110405326B (en) | TIG excitation welding gun for deep and narrow gap and welding method | |
| CN106312252B (en) | Overcome method of the magnetic field to arc magnetic blow | |
| CN109483021B (en) | Double-tungsten-electrode pulse TIG welding method | |
| US4035605A (en) | Narrow groove welding method, and welding apparatus for practicing the method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201229 |
|
| RJ01 | Rejection of invention patent application after publication |