CN113560755A - Magnetic field phase regulation type plasma MIG welding device and method - Google Patents
Magnetic field phase regulation type plasma MIG welding device and method Download PDFInfo
- Publication number
- CN113560755A CN113560755A CN202011530852.3A CN202011530852A CN113560755A CN 113560755 A CN113560755 A CN 113560755A CN 202011530852 A CN202011530852 A CN 202011530852A CN 113560755 A CN113560755 A CN 113560755A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- mag
- coil
- plasma
- 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.)
- Granted
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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
-
- 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
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a magnetic field phase regulation type plasma MIG welding device and a method, which are characterized by comprising a regulation magnetic pole mechanism, wherein the regulation magnetic pole mechanism comprises a first coil and a second coil which are used for generating a parallel magnetic field, the magnetic induction line direction of the parallel magnetic field generated by the first coil and the second coil is vertical to the connecting line direction of a plasma arc and an MAG arc, a pulse magnetic field excitation power supply is arranged in the regulation magnetic pole mechanism and is respectively connected with the first coil and the second coil, and the transverse magnetic field vertical to the connecting line direction of the two arcs is added to realize the phase regulation of a pulse MAG and an intermittent magnetic field, so that the MAG arc is flexibly compounded with the plasma arc under the action of Lorentz force, the repulsion action between the two arcs is effectively improved, and the welding spatter and the welding stability are obviously improved at the same time; meanwhile, the pulsating action of the magnetic field can oscillate and stir the welding pool through the MAG electric arc, so that the weld joint structure is improved.
Description
The technical field is as follows:
the invention relates to the technical field of welding, in particular to a magnetic field phase regulation type plasma MIG welding device and method capable of effectively improving welding stability and reducing air hole defects.
Background art:
with the rapid development of global marine economy, the high-end equipment manufacturing technology gradually becomes a technical bottleneck limiting the forward development of the manufacturing industry in China. Welding is one of key processing technologies for equipment manufacturing, and the importance of welding is of great significance to national economic development and national defense construction in China. Meanwhile, the implementation of the national manufacturing strong strategy prompts related enterprises to put forward higher requirements on the welding manufacturing efficiency and quality of high-end equipment, and the development of an advanced high-efficiency welding technology, the improvement of the construction efficiency, the reduction of the construction cost and the improvement of the construction automation welding level are urgently needed. Based on the technical background, the multi-heat-source multi-energy-field composite welding technology based on the plasma arc welding method becomes one of hot spot technologies in the field of equipment manufacturing at present, the method has the characteristic of complementation of the advantages of various welding processes, the equipment cost is obviously lower than that of laser welding, the welding process is stable, and splashing is less; the welding quality and the cleanliness are high; the welding can be carried out at high speed under the condition of no groove or narrow groove, the using amount of filling metal is greatly reduced, and the welding production cost is obviously reduced; the welding heat affected zone is narrow, and the deformation after welding is small. Based on the advantages, the technology is applied to welding manufacture of parts in the fields of aerospace, maritime work equipment, transportation and the like.
However, the specific working principle of the existing plasma-MAG hybrid welding method is that the plasma arc and the gas shielded arc of the consumable electrode are longitudinally arranged and act together to dissolve out in the welding process. Because the plasma arc and the gas shielded arc of the consumable electrode respectively adopt two modes of direct current positive connection and pulse direct current reverse connection in the welding process, the electric arc generates repulsion under the electromagnetic action to influence the welding quality and the process stability, and a constant transverse magnetic field is added to inhibit the repulsion state of the two electric arcs so as to achieve the effect of controlling the coupling degree of the two heat sources. However, because the gas metal arc welding power supply generally adopts a pulse mode to weld, the electromagnetic acting force of an external magnetic field received under a constant magnetic field can change along with the change of pulse current, so that the periodic change of the distance between a gas metal arc welding arc and a plasma arc heat source is caused, the stability of the welding process is influenced, and the defect of air holes is caused.
The invention content is as follows:
aiming at the defects and shortcomings in the prior art, the invention provides a magnetic field phase control type plasma MIG welding device and method capable of effectively improving welding stability and reducing air hole defects.
The invention is achieved by the following measures:
a magnetic field phase regulation type plasma MIG welding device is provided with a plasma welding torch main body, an MAG welding torch main body and a shielding gas hood, wherein a plasma electrode and a workpiece in the plasma welding torch main body are respectively connected with a negative electrode and a positive electrode of a plasma power supply to form a conductive path, an MAG welding wire and the workpiece in the MAG welding torch main body are respectively connected with a positive electrode and a negative electrode of a consumable electrode gas shield welding power supply to form a conductive path, and the magnetic field phase regulation type plasma MIG welding device is characterized by further being provided with a regulation magnetic pole mechanism, the regulation magnetic pole mechanism comprises a first coil and a second coil which are used for generating a parallel magnetic field, the magnetic induction line direction of the parallel magnetic field generated by the first coil and the second coil is perpendicular to the connecting line direction of the plasma arc and the MAG arc, a pulse magnetic field excitation power supply is arranged in the regulation magnetic pole mechanism, and the pulse magnetic field excitation power supply is respectively connected with the first coil and the second coil.
The magnetic pole regulating mechanism is also provided with magnetizers, wherein the magnetizers are provided with a first magnetizer and a second magnetizer which are respectively connected with a first coil and a second coil, and the first magnetizer and the second magnetizer are distributed on two sides of a connecting line of an arc heat source of the plasma and the melting electrode in parallel and are used for generating a parallel magnetic field to control the coupling state of two arcs.
The pulse magnetic field excitation power supply is used for outputting magnetic field excitation current synchronous or asynchronous with pulse MAG current to the first coil and the second coil, and the output magnetic field excitation current is 0-5A.
The invention also provides a magnetic field phase-regulated plasma MIG welding method which is characterized in that a magnetic field excitation current synchronous or asynchronous with the pulse MAG is output by utilizing a magnetic field phase-regulated magnetic pole mechanism, a magnetic field with a magnetic induction line perpendicular to a connecting line of two arcs is formed on two sides of a plasma arc and an MAG arc, and the MAG arc is flexibly compounded with the plasma arc under the action of Lorentz force through the phase regulation of the pulse MAG and an intermittent magnetic field.
The phase regulation of the magnetic pole mechanism is controlled by regulating the time interval delta T between the pulse magnetic field excitation power supply and the peak rising edge of the pulse MAG, and the magnetic field strength is controlled by regulating the peak strength of the magnetic field pulse signal.
According to the invention, the transverse magnetic field perpendicular to the direction of the connection line of the two arcs is added on the two sides of the plasma and the MAG arc, and the phase regulation of the pulse MAG and the intermittent magnetic field is realized, so that the MAG arc is flexibly compounded with the plasma arc under the action of Lorentz force, the repulsion action between the two arcs is effectively improved, and the welding spatter and the welding stability are obviously improved at the same time; meanwhile, the pulsating action of the magnetic field can oscillate and stir the welding pool through the MAG electric arc, so that the weld joint structure is improved.
Description of the drawings:
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the installation of the first coil and the second coil in the present invention.
Fig. 3 is a schematic diagram of a phase control signal for controlling a magnetic pole mechanism according to the present invention.
Reference numerals: the plasma arc welding device comprises a plasma electrode 1, a plasma nozzle 2, a MAG welding wire 3, a protective gas shield 4, a MAG electric arc 5, a workpiece 6, a plasma electric arc 7, a first magnetizer 8, a second magnetizer 9, a second coil 10 and a first coil 11.
The specific implementation mode is as follows:
the invention is further described below with reference to the accompanying drawings and examples.
As shown in the attached figure 1, the invention provides a magnetic field phase regulation type plasma MIG welding device, which mainly comprises an intensive plasma welding torch main body, a MAG welding torch main body, a protective gas hood and a regulation magnetic pole, wherein an intermittent transverse regulation magnetic field output by a regulation magnetic pole mechanism is arranged on two sides of plasma and MAG electric arcs and is vertical to the direction of the connection line of the two electric arcs, the intermittent transverse magnetic field can carry out phase regulation on pulse MAG electric arcs, magnetic field excitation current and pulse MAG current can be set to be a synchronous mode and an asynchronous mode, and the magnetic field action frequency under the asynchronous mode is continuously adjustable within 0-300 Hz;
when the magnetic field excitation current and the pulse MAG current are in a synchronous mode, the phases of the magnetic field excitation current and the MAG current are adjustable; the magnetic field excitation current is adjustable according to welding conditions, and the adjustment range is 0-5A.
Example 1:
the embodiment provides a magnetic field phase-regulated plasma MIG welding method, as shown in attached figures 1-3, firstly, a plasma electrode 1 and a workpiece 6 are respectively connected with a cathode and an anode of a plasma power supply to form a conductive path; the MAG welding wire 3 and the workpiece are respectively connected with the anode and the cathode of a gas shielded welding power supply of a consumable electrode to form a conductive path, and an MAG electric arc 5 is generated; the plasma nozzle 2 is used for carrying out thermal and mechanical combined compression on the electric arc generated by the plasma electrode 1 to form a stable plasma electric arc 7; the protective gas hood 4 is used for ensuring that a metal melting pool is not oxidized by external atmosphere in the welding process; the flat magnetic field is generated by the coils 10 and 11 and conducts the coupled arc part through the magnetizers 8 and 9 to regulate and control the plasma arc 7 and the MAG arc 5;
the coil adopts a pulse power supply as shown in figure 3, and is cooperatively controlled with a pulse MAG current signal through a pulse phase control circuit, wherein the main phase regulation and control are realized by adjusting the time interval Delta T of the peak rising edges of the pulse power supply and the pulse MAG current signal, and the magnetic field strength is controlled by adjusting the peak intensity of the magnetic field pulse signal.
According to the invention, the transverse magnetic field perpendicular to the direction of the connection line of the two arcs is added on the two sides of the plasma and the MAG arc, and the phase regulation of the pulse MAG and the intermittent magnetic field is realized, so that the MAG arc is flexibly compounded with the plasma arc under the action of Lorentz force, the repulsion action between the two arcs is effectively improved, and the welding spatter and the welding stability are obviously improved at the same time; meanwhile, the pulsating action of the magnetic field can oscillate and stir the welding pool through the MAG electric arc, so that the weld joint structure is improved.
Claims (5)
1. A magnetic field phase regulation type plasma MIG welding device is provided with a plasma welding torch main body, an MAG welding torch main body and a shielding gas hood, wherein a plasma electrode and a workpiece in the plasma welding torch main body are respectively connected with a negative electrode and a positive electrode of a plasma power supply to form a conductive path, an MAG welding wire and the workpiece in the MAG welding torch main body are respectively connected with a positive electrode and a negative electrode of a consumable electrode gas shield welding power supply to form a conductive path, and the magnetic field phase regulation type plasma MIG welding device is characterized by further being provided with a regulation magnetic pole mechanism, the regulation magnetic pole mechanism comprises a first coil and a second coil which are used for generating a parallel magnetic field, the magnetic induction line direction of the parallel magnetic field generated by the first coil and the second coil is perpendicular to the connecting line direction of the plasma arc and the MAG arc, a pulse magnetic field excitation power supply is arranged in the regulation magnetic pole mechanism, and the pulse magnetic field excitation power supply is respectively connected with the first coil and the second coil.
2. The MIG welding apparatus of claim 1, wherein the magnetic field phase control unit further comprises a first magnetic conductor and a second magnetic conductor connected to the first coil and the second coil, respectively, and the first magnetic conductor and the second magnetic conductor are disposed in parallel on two sides of a connection line of an arc heat source of the plasma and the consumable electrode to generate a parallel magnetic field for controlling the coupling status of the two arcs.
3. A magnetic field phase regulated plasma MIG welding apparatus as claimed in claim 1 wherein the pulsed magnetic field excitation power supply is adapted to output to the first and second coils a magnetic field excitation current synchronous or asynchronous to the pulsed MAG current, the output magnetic field excitation current being 0-5A.
4. A magnetic field phase regulation type plasma MIG welding method is characterized in that a magnetic field excitation current synchronous or asynchronous with pulse MAG is output by utilizing a magnetic pole regulation mechanism, a magnetic field with a magnetic induction line perpendicular to a connecting line of two arcs is formed on two sides of a plasma arc and an MAG arc, and the MAG arc is flexibly combined with the plasma arc under the action of Lorentz force through phase regulation of the pulse MAG and an intermittent magnetic field.
5. The MIG welding method of claim 4 in which the phase control of the magnetic pole mechanism is controlled by adjusting the time interval Δ T between the pulse MAG and the pulse excitation power source, and the magnetic field strength is controlled by adjusting the peak strength of the pulse MAG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011530852.3A CN113560755B (en) | 2020-12-22 | 2020-12-22 | Magnetic field phase regulation and control type plasma MAG welding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011530852.3A CN113560755B (en) | 2020-12-22 | 2020-12-22 | Magnetic field phase regulation and control type plasma MAG welding device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113560755A true CN113560755A (en) | 2021-10-29 |
| CN113560755B CN113560755B (en) | 2022-07-29 |
Family
ID=78158811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011530852.3A Active CN113560755B (en) | 2020-12-22 | 2020-12-22 | Magnetic field phase regulation and control type plasma MAG welding device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113560755B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117206645A (en) * | 2023-11-09 | 2023-12-12 | 珠海东方重工股份有限公司 | Double-wire high-speed welding robot |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245473A (en) * | 1985-08-23 | 1987-02-27 | Ishikawajima Harima Heavy Ind Co Ltd | Multielectrode pulse current welding method |
| JPH05253671A (en) * | 1992-03-12 | 1993-10-05 | Osaka Denki Co Ltd | Consumable electrode arc welding method and welding machine thereof |
| JP2000079477A (en) * | 1998-09-03 | 2000-03-21 | Ishikawajima Harima Heavy Ind Co Ltd | Arc oscillation method by multi-electrode welding torch |
| CN202461816U (en) * | 2011-12-23 | 2012-10-03 | 杨泽宇 | Combined welding gun |
| CN104493368A (en) * | 2014-11-25 | 2015-04-08 | 哈尔滨工程大学 | Plasma-melting electrode electric arc dynamic composite welding device and welding method thereof |
| CN105397249A (en) * | 2015-12-18 | 2016-03-16 | 山东大学 | Low-heat-input double-DC (Direct Current) pulse hybrid electric arc welding device and welding method |
| CN106624402A (en) * | 2017-02-07 | 2017-05-10 | 王长春 | Double heat source hybrid welding torch and welding method |
| CN206578445U (en) * | 2017-02-07 | 2017-10-24 | 王长春 | A kind of pair of thermal source hybrid welding torch and double thermal source composite welding systems |
| CN109773359A (en) * | 2019-03-07 | 2019-05-21 | 哈尔滨工业大学（威海） | Plasma-MIG composite welding apparatus for narrow gap welding |
-
2020
- 2020-12-22 CN CN202011530852.3A patent/CN113560755B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245473A (en) * | 1985-08-23 | 1987-02-27 | Ishikawajima Harima Heavy Ind Co Ltd | Multielectrode pulse current welding method |
| JPH05253671A (en) * | 1992-03-12 | 1993-10-05 | Osaka Denki Co Ltd | Consumable electrode arc welding method and welding machine thereof |
| JP2000079477A (en) * | 1998-09-03 | 2000-03-21 | Ishikawajima Harima Heavy Ind Co Ltd | Arc oscillation method by multi-electrode welding torch |
| CN202461816U (en) * | 2011-12-23 | 2012-10-03 | 杨泽宇 | Combined welding gun |
| CN104493368A (en) * | 2014-11-25 | 2015-04-08 | 哈尔滨工程大学 | Plasma-melting electrode electric arc dynamic composite welding device and welding method thereof |
| CN105397249A (en) * | 2015-12-18 | 2016-03-16 | 山东大学 | Low-heat-input double-DC (Direct Current) pulse hybrid electric arc welding device and welding method |
| CN106624402A (en) * | 2017-02-07 | 2017-05-10 | 王长春 | Double heat source hybrid welding torch and welding method |
| CN206578445U (en) * | 2017-02-07 | 2017-10-24 | 王长春 | A kind of pair of thermal source hybrid welding torch and double thermal source composite welding systems |
| CN109773359A (en) * | 2019-03-07 | 2019-05-21 | 哈尔滨工业大学（威海） | Plasma-MIG composite welding apparatus for narrow gap welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117206645A (en) * | 2023-11-09 | 2023-12-12 | 珠海东方重工股份有限公司 | Double-wire high-speed welding robot |
| CN117206645B (en) * | 2023-11-09 | 2024-01-23 | 珠海东方重工股份有限公司 | Double-wire high-speed welding robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113560755B (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108213649B (en) | Material increase forming method and device for magnetic field control type electric arc robot | |
| CN103567652B (en) | Aluminum alloy direct current plasma-tungsten electrode argon arc hybrid welding method based on pulse coordination control | |
| US8969755B2 (en) | Lower-power laser and arc hybrid welding method and device | |
| AU2020103796A4 (en) | A Laser-GMA Arc Composite Heat Source Wire-filled Welding Method | |
| CN206578445U (en) | A kind of pair of thermal source hybrid welding torch and double thermal source composite welding systems | |
| CN114226916B (en) | Device and method for improving surface forming precision of arc material-increasing component | |
| CN108247226A (en) | A kind of laser weld pools control method based on Lorentz force | |
| CN109604831B (en) | Laser TIG (tungsten inert gas) hybrid welding process for improving laser welding undercut of titanium and titanium alloy sheets | |
| CN108555421A (en) | A kind of droplet transfer control device and its control method based on pulse matching electrode TIG | |
| CN111112839B (en) | Double-laser-beam bilateral synchronous welding device and method assisted by external magnetic field | |
| CN105127553A (en) | Control system for lockhole effect TIG deep penetration welding welder and control method | |
| CN105562894A (en) | Device applying pulsed TIG electric arc for assisting MIG welding and welding method achieved by adopting device | |
| CN113560755B (en) | Magnetic field phase regulation and control type plasma MAG welding device and method | |
| Vendan et al. | Interdisciplinary treatment to arc welding power sources | |
| CN111299758B (en) | Molten drop form control device and method for carbon dioxide gas shielded welding | |
| CN111673283A (en) | Multilayer laser-TIG (tungsten inert gas) hybrid welding device and method for aluminum alloy thick plate | |
| CN113102891B (en) | Method and device for inhibiting aluminum alloy laser-MIG (Metal-inert gas) composite welding collapse by external magnetic field | |
| CN102069305A (en) | Laser twin-electric arc compound welding system | |
| CN114700643A (en) | High-deposition low-heat-input plasma-twin-wire bypass arc welding device and method | |
| CN205008717U (en) | Lockhole effect TIG deep penetration welding welding machine control system | |
| CN104625361A (en) | Double-electric-arc and cold wire pulse composite welding three-wire welding gun and welding system and method | |
| CN116000457B (en) | Laser coaxial-induction multi-TIG electric arc multi-wire rapid additive manufacturing method and manufacturing system | |
| Gu et al. | Effect of laser on droplet transfer and welding process stability in hybrid laser+ double arc welding | |
| CN113319430A (en) | Magnetic field assisted multistage argon arc and laser center coupling eutectic pool welding device | |
| CN113977047A (en) | Magnetic control large-current efficient submerged arc welding system and welding 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |