CN108817621A - Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method - Google Patents
Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method Download PDFInfo
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- CN108817621A CN108817621A CN201810869645.7A CN201810869645A CN108817621A CN 108817621 A CN108817621 A CN 108817621A CN 201810869645 A CN201810869645 A CN 201810869645A CN 108817621 A CN108817621 A CN 108817621A
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- tungsten electrode
- longitudinal movement
- electric arc
- low frequency
- sound field
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Classifications
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- 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
Abstract
The invention belongs to technical field of welding equipment, disclose a kind of low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method, including welding gun, outer wall, sonic generator, tungsten electrode folder, tungsten electrode, fixed frame and gas hood, tungsten electrode is clipped on tungsten electrode folder, tungsten electrode tip passes through fixed frame, fixed frame is connect with gas hood, and gas hood is equipped with air inlet, is equipped with cooling-water duct in welding gun and outer wall.For the technical program by sound wave in conjunction with argon tungsten-arc welding, the sound wave that sonic generator generates passes to tungsten electrode folder through guide rod, drives tungsten electrode to realize longitudinally reciprocating motion by tungsten electrode folder mating sleeve.The defects of can generating periodic stirring action to molten bath by the longitudinal movement of tungsten electrode, enhance molten bath mobility, be crushed dendrite, promote refinement of welded metal, reduce stomata, crackle, slag inclusion, realize the TIG weld of high quality.
Description
Technical field
The invention belongs to technical field of welding equipment, and in particular to a kind of low frequency sound field controlling type longitudinal movement electric arc tungsten electrode
Argon arc welding welder and method.
Background technique
Argon tungsten-arc welding is welding manner most commonly used at present, it is to utilize tungsten electrode under the protection of inert gas
A kind of welding method of the arc heat fusing weldment and filler wire that are generated between workpiece.Protective gas is continuously from weldering when welding
It is sprayed in the nozzle of rifle, forms gas blanket around electric arc and completely cut off air, to prevent it to tungsten electrode, molten bath and neighbouring heat
The adverse effect of the zone of influence, to obtain the weld seam of high quality.But it when welding the materials such as aluminium, stainless steel, is still easy to appear
The defects of stomata, crackle, joint microstructure be uneven, coarse grains, influences the reliability of welding, therefore it provides it is a kind of further
The welding skill for the defects of efficiently and effectively improving welding quality, improving uneven stomata, crackle, joint microstructure, coarse grains
Art is necessary.
The propagation of the vibration that sounding body generates in air or other substances is called sound wave.Sound wave is by various media to four
It propagates from all directions in face.The propagation of sound wave is substantially the transmitting of energy in the medium, and this energy can make object generate vibration.
Summary of the invention
The purpose of the present invention is to provide a kind of low frequency sound field controlling type longitudinal movement electric arc Tig Welding devices
And method.It is achieved through the following technical solutions.
Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device includes tungsten electrode argon arc welding gun, sound wave hair
Raw device, guide rod, sleeve, tungsten electrode folder, buffer spring, fixed frame, gas hood, tungsten electrode, moves back and forth electric arc, weld seam, gas at gun body outer wall
Body channel, cooling-water duct and conductive channel.Wherein tungsten electrode argon arc welding gun, gun body outer wall, fixed frame are connected through a screw thread,
Sonic generator is fixed by gun body outer wall and welding gun slash, and the tungsten electrode folder and sonic generator of guide rod and two sides pass through screw thread
Connection, buffer spring are mounted between tungsten electrode folder and fixed frame.Sound wave is wherein occurred by sonic generator, passes to tungsten through guide rod
Pole folder, and then drive tungsten electrode longitudinally reciprocal.In tungsten electrode uphill process, charged particle is reunited on tungsten electrode tip top, tungsten electrode point
Arc constriction is held, during tungsten electrode decline, charged particle sinks, and tungsten electrode tip electric arc extension, cycle alternation is realized to molten bath
Periodical agitation, enhance molten bath mobility, be crushed dendrite, promote refinement of welded metal, reduce stomata, crackle, slag inclusion
The defects of, realize the TIG weld of high quality.
There are buffer spring, the longitudinal movement that can be generated for sound wave provides buffering power-assisted effect for tungsten electrode folder lower section.
Sonic generator is made of power supply, control circuit, oscillating circuit and electroacoustic transducer, and wherein power supply gives control electricity
Road, oscillating circuit and electroacoustic transducer power supply, the intensity of output sound wave is controlled by control circuit, oscillating circuit and electroacoustic transducer
And frequency.The sound wave that sonic generator generates is low-frequency sine, frequency 1-50hz.
The longitudinal movement amplitude of tungsten electrode and electric arc determines that hunting frequency is by exporting by the intensity of sonic generator output sound wave
The frequency of sound wave determines.
Guide rod material is high-strength insulating material.
Low frequency sound field controlling type longitudinal movement electric arc Tig Welding method and step is：Cooling water is successively confirmed before weldering
Channel cycle, conductive channel connection, gas channel effect；Water, electricity, gas connection is successively established when welding, opens cooling water circulation
System, gas circuit valve switch, startup power supply set suitable parameter；Sonic generator power supply is opened, by frequency of sound wave and sound wave
Intensity is adjusted to suitable parameters, and tungsten electrode is made to do longitudinally reciprocating motion.Welding switch is opened, is realized high-quality under longitudinally reciprocal conditions at the arc
The TIG weld of amount.It is realized by the longitudinally reciprocating motion of tungsten electrode and the periodicity in molten bath is stirred, enhance molten bath mobility, be crushed
The defects of dendrite promotes refinement of welded metal, reduces stomata, crackle, slag inclusion, realizes the TIG weld of high quality.
For the technical program by sound wave in conjunction with argon tungsten-arc welding, the sound wave that sonic generator generates passes to tungsten electrode through guide rod
Folder drives tungsten electrode to realize longitudinally reciprocating motion by tungsten electrode folder mating sleeve.By the longitudinal movement of tungsten electrode week can be generated to molten bath
The stirring action of phase property enhances molten bath mobility, is crushed dendrite, promotes refinement of welded metal, reduces stomata, crackle, folder
The defects of slag, realizes the TIG weld of high quality.
Detailed description of the invention
Fig. 1：A kind of knot of low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method of the present invention
Structure schematic diagram.
Wherein：1. welding gun；2. sonic generator；3. outer wall；4. guide rod；5. sleeve；6. tungsten electrode presss from both sides；7. spring；8. fixed
Frame；9. tungsten electrode；10. gas hood；11. electric arc；12. weld seam；13. air inlet；14. cooling-water duct；15. being electrically connected mouth.
Specific embodiment
The invention will be further described With reference to embodiment.
As shown in Figure 1, throat thickness is the austenitic stainless steel of 5mm, welding point form is banjo fixing butt jointing.Low frequency sound field
Controlling type longitudinal movement electric arc Tig Welding device includes tungsten electrode argon arc welding gun 1, sonic generator 2, gun body outer wall
3, guide rod 4, sleeve 5, tungsten electrode folder 6, buffer spring 7, fixed frame 8, tungsten electrode 9, gas hood 10, reciprocating motion electric arc 11, weld seam 12, gas
Body channel 13, cooling-water duct 14 and conductive channel 15.Wherein tungsten electrode argon arc welding gun 1, gun body outer wall 3, fixed frame 8 pass through
It is threadedly coupled, sonic generator 2 is fixed by gun body outer wall 3 and 1 slash of welding gun, the tungsten electrode folder 6 and sound wave of guide rod 4 and two sides
Generator 2 is connected through a screw thread, and buffer spring 7 is mounted between tungsten electrode folder 6 and fixed frame 8.By 2 generation sound of sonic generator
Wave passes to tungsten electrode folder 6 through guide rod 4, and then drives tungsten electrode 9 longitudinally reciprocal.In 9 uphill process of tungsten electrode, charged particle is in tungsten
Pole tip top is reunited, 9 tip arc constriction of tungsten electrode, and during tungsten electrode 9 declines, charged particle sinks, 9 tip electric arc of tungsten electrode
Extension, cycle alternation are realized and are stirred to the periodicity in molten bath, enhance molten bath mobility, be crushed dendrite, promote weld metal crystal grain
The defects of refinement, reduction stomata, crackle, slag inclusion, realize the TIG weld of high quality.
For 7 lower section of tungsten electrode folder there are buffer spring 8, the longitudinal movement that can be generated for sound wave provides buffering power-assisted effect.
The sound wave that sonic generator 2 generates is low-frequency sine, frequency 1-50hz.
Sonic generator 2 is made of power supply, control circuit, oscillating circuit and electroacoustic transducer, and wherein power supply gives control electricity
Road, oscillating circuit and electroacoustic transducer power supply, the intensity of output sound wave is controlled by control circuit, oscillating circuit and electroacoustic transducer
And frequency.
The longitudinal movement amplitude of tungsten electrode 10 and electric arc by sonic generator 2 export sound wave intensity determine, hunting frequency by
The frequency for exporting sound wave determines.
4 material of guide rod is high-strength insulating material.
Successively confirmation cooling-water duct 14 recycles before weldering, conductive channel is connected to, gas channel effect；It is successively established when welding
Water, electricity, gas connection, air inlet 13 are arranged on gas hood, and electric appliance connector 15 is arranged on welding gun 1, open cooling water cyclic system
System, gas circuit valve switch, startup power supply set suitable parameter；Sonic generator power supply is opened, frequency of sound wave and sound wave is strong
Degree is adjusted to suitable parameters, and tungsten electrode is made to do longitudinally reciprocating motion；Welding current 200A, protection air-flow amount 12L/min are set, welding is high
Spend 5mm.Welding switch is opened, realizes the TIG weld of high quality under longitudinally reciprocal conditions at the arc.Pass through the longitudinally reciprocal fortune of tungsten electrode
Dynamic realize stirs the periodicity in molten bath, enhances molten bath mobility, is crushed dendrite, promote refinement of welded metal, reduces gas
The defects of hole, crackle, slag inclusion, realizes the TIG weld of high quality.
Embodiment only illustrates technical solution of the present invention, rather than carries out any restrictions to it；Although with reference to the foregoing embodiments
Invention is explained in detail, for those of ordinary skill in the art, still can be to previous embodiment institute
The technical solution of record is modified or equivalent replacement of some of the technical features；And these modifications or substitutions, and
The essence of corresponding technical solution is not set to be detached from the spirit and scope of claimed technical solution of the invention.
Claims (10)
1. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device, it is characterised in that：Including welding gun 1, outer wall
3, sonic generator 2, tungsten electrode folder 6, tungsten electrode 9, fixed frame 8 and gas hood 10, tungsten electrode 9 are clipped on tungsten electrode folder 6, and tungsten electrode 9, which passes through, to be fixed
Frame 8, fixed frame 8 are connect with gas hood 10, and gas hood 10 is equipped with air inlet 13.
2. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 1, feature
It is：It further include elastomeric element, elastomeric element setting is between tungsten electrode folder 6 and fixed frame 8.
3. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 2, feature
It is：Elastomeric element is spring 7.
4. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 1 to 3,
It is characterized in that：It further include guide rod 4, guide rod 4 is connect with sonic generator 2 and tungsten electrode folder 6 respectively.
5. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 4, feature
It is：The material of guide rod 4 is high-strength insulating material.
6. low frequency sound field controlling type longitudinal movement electric arc Tig Welding described according to claim 1 or 2 or 3 or 5 fills
It sets, it is characterised in that：It further include sleeve 5, the setting of sleeve 5 is between outer wall 3 and tungsten electrode folder 6.
7. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 6, feature
It is：The sound wave that sonic generator 2 generates is low-frequency sine, frequency 1-50hz.
8. low frequency sound field controlling type longitudinal movement electric arc Tig Welding method, which is characterized in that include the following steps：
（1）It establishes water connection, be electrically connected gentle connection；
（2）Open cooling water recirculation system, gas circuit valve switch, startup power supply；
（3）Welding current, protection air-flow amount and welding and assembling height are set；
（4）Sonic generator 2 is opened, frequency of sound wave and intensity are adjusted；
（5）Open welding switch；
（6）Operation welding；
（7）Complete welding.
9. low frequency sound field controlling type longitudinal movement electric arc Tig Welding device according to claim 8, feature
It is：Step（2）In successively open cooling water recirculation system, gas circuit valve and power supply.
10. being filled according to any low frequency sound field controlling type longitudinal movement electric arc Tig Welding of claim 8 or 9
It sets, it is characterised in that：Step（3）Middle setting welding current is 200A, protection air-flow amount 12L/min, welding and assembling height 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869645.7A CN108817621A (en) | 2018-08-02 | 2018-08-02 | Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810869645.7A CN108817621A (en) | 2018-08-02 | 2018-08-02 | Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method |
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| CN108817621A true CN108817621A (en) | 2018-11-16 |
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| CN201810869645.7A Pending CN108817621A (en) | 2018-08-02 | 2018-08-02 | Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device and method |
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| JP2001198677A (en) * | 2000-01-14 | 2001-07-24 | Ishikawajima Harima Heavy Ind Co Ltd | Agitation welding method and device |
| CN101269437A (en) * | 2008-05-15 | 2008-09-24 | 哈尔滨工业大学 | Electric arc welding method and device using additional acoustic pressure mode |
| US20110107571A1 (en) * | 2007-08-21 | 2011-05-12 | Saipem S.A. | Peening Device for Peening Welds Inside Steel Submarine Pipes, Process for Producing Steel Submarine Pipes Using Such a Device, and Submarine Connection Pipe |
| CN103192186A (en) * | 2013-04-24 | 2013-07-10 | 哈尔滨工业大学 | Focusing sound field and electric-arc welding composite welding device |
| CN103785963A (en) * | 2014-02-18 | 2014-05-14 | 哈尔滨工业大学 | Ultrasonic electric arc composite welding device |
| CN104668743A (en) * | 2014-12-25 | 2015-06-03 | 哈尔滨工业大学 | Plasma-arc welding device implemented by aid of TIG (tungsten inert gas) welding method |
| CN105234539A (en) * | 2015-11-18 | 2016-01-13 | 山东大学 | Plasma arc welding device and process for ultrasonic auxiliary perforation |
| CN208758781U (en) * | 2018-08-02 | 2019-04-19 | 威海万丰镁业科技发展有限公司 | Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device |
-
2018
- 2018-08-02 CN CN201810869645.7A patent/CN108817621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001198677A (en) * | 2000-01-14 | 2001-07-24 | Ishikawajima Harima Heavy Ind Co Ltd | Agitation welding method and device |
| US20110107571A1 (en) * | 2007-08-21 | 2011-05-12 | Saipem S.A. | Peening Device for Peening Welds Inside Steel Submarine Pipes, Process for Producing Steel Submarine Pipes Using Such a Device, and Submarine Connection Pipe |
| CN101269437A (en) * | 2008-05-15 | 2008-09-24 | 哈尔滨工业大学 | Electric arc welding method and device using additional acoustic pressure mode |
| CN103192186A (en) * | 2013-04-24 | 2013-07-10 | 哈尔滨工业大学 | Focusing sound field and electric-arc welding composite welding device |
| CN103785963A (en) * | 2014-02-18 | 2014-05-14 | 哈尔滨工业大学 | Ultrasonic electric arc composite welding device |
| CN104668743A (en) * | 2014-12-25 | 2015-06-03 | 哈尔滨工业大学 | Plasma-arc welding device implemented by aid of TIG (tungsten inert gas) welding method |
| CN105234539A (en) * | 2015-11-18 | 2016-01-13 | 山东大学 | Plasma arc welding device and process for ultrasonic auxiliary perforation |
| CN208758781U (en) * | 2018-08-02 | 2019-04-19 | 威海万丰镁业科技发展有限公司 | Low frequency sound field controlling type longitudinal movement electric arc Tig Welding device |
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