CN109332857A - A kind of hollow tungsten electrode TOPTIG welding method - Google Patents
A kind of hollow tungsten electrode TOPTIG welding method Download PDFInfo
- Publication number
- CN109332857A CN109332857A CN201811388771.7A CN201811388771A CN109332857A CN 109332857 A CN109332857 A CN 109332857A CN 201811388771 A CN201811388771 A CN 201811388771A CN 109332857 A CN109332857 A CN 109332857A
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- China
- Prior art keywords
- welding
- tungsten electrode
- toptig
- hollow tungsten
- hollow
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- 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.)
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 100
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 74
- 239000010937 tungsten Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000005476 soldering Methods 0.000 abstract description 10
- 230000008021 deposition Effects 0.000 abstract description 9
- 238000010891 electric arc Methods 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 26
- 230000008901 benefit Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of hollow tungsten electrode TOPTIG soldering method, the method is realized by TOPTIG welding gun, and the tungsten electrode in the TOPTIG welding gun is set as hollow tungsten electrode, and the hollow tungsten electrode is used to generate the electric arc of welding；And TOPTIG welding gun top end part position offers gas access, and inner hole is provided in the hollow tungsten electrode, the bottom end two sides of the hollow tungsten electrode are arranged in vertical direction with 20 ° of sizes；The method welding is comprising steps of S1, in the gas access and the TOPTIG welding gun inject inert protective gas；S2, by welding wire to be welded since being sent into after the electric arc wire feeding mouth with the TOPTIG welding gun at 20 ° of angles；Meanwhile in order to guarantee that welding current can guarantee that, in a certain range, the present invention controls the air velocity for the inert protective gas for injecting the inner hole within 5-10L/min；Invention increases the maximum allowable electric currents of TOPTIG weldering, improve welding wire deposition rate, increase the weld penetration of weldable workpiece, improve welding efficiency.
Description
Technical field
The invention belongs to TIG (Tungsten Inert Gas Welding, argon tungsten-arc welding) welding technology fields, especially
It is related to a kind of hollow tungsten electrode TOPTIG soldering method.
Background technique
Tig Welding process is stablized, and welding quality is preferable.But there are apparent defects for this method: the single track of welding
Weld penetration is shallow, and deposition rate is low and is not suitable for thick plates.Improve TIG weldering welding efficiency, while keep TIG welding line at
The advantage that type is good, welding quality is high is always the goal in research of Welder author, occur it is many by TIG weld based on height
Imitate welding method.
TOPTIG weldering is a kind of novel robot TIG silk filling technique, and key position is that collection is integrated with wire feed system
At the welding gun of design, have the advantages that good welding gun accessibility, deposition rate and speed of welding are very fast, but electricity in the TIG weldering that fills silk
Arc heat only has about 30% for melting welding wire, causes bonding speed slower；And TOPTIG welding wire can be accurately sent into electric arc
The highest region of heat, improves deposition rate and welding efficiency.
But since the current-carrying capability of TIG weldering tungsten electrode is limited, the maximum weld electric current that when welding can use is smaller, causes
The input of TOPTIG welding heat is small, and the heat for melting welding wire is few, influences the welding efficiency of TOPTIG weldering；That is TOPTIG weldering is limited to
The limitation of tungsten electrode current-carrying capability in TIG weldering, when welding it is selected maximum weld electric current it is smaller, cause deposition rate slower, and
The fusion penetration of weld seam is restricted, and is only used for plate sheet welding, limits the application range of the method for TOPTIG weldering.
Summary of the invention
The main purpose of the present invention is to provide a kind of hollow tungsten electrode TOPTIG soldering method, this method is able to ascend
Maximum allowable electric current when TOPTIG weldering welding, improves the deposition rate of welding wire in welding process, and improve welding efficiency, to solve
Certainly due to the problem that welding current is small and causes welding range limited, specific technical solution is as follows for TOPTIG weldering in the prior art:
A kind of hollow tungsten electrode TOPTIG soldering method, the method is realized by TOPTIG welding gun, and is installed with one on the TOPTIG
The wire feeding mouth of body, the tungsten electrode in the TOPTIG welding gun are set as hollow tungsten electrode；And TOPTIG welding gun top end part position
Offer gas access, be provided with inner hole in the hollow tungsten electrode, the end portion two sides of the hollow tungsten electrode be arranged to vertically
Direction is at 20 ° of sizes；The method welding comprising steps of
S1, inert protective gas is injected in the gas access and the TOPTIG welding gun；
S2, by welding wire to start to weld after being sent into the electric arcs at 20 ° of angles with the TOPTIG welding gun.
A further improvement of the present invention is that the outer diameter of the hollow tungsten electrode is 3-5mm, the diameter of the inner hole is 0.5-
3mm, wherein side is set as circular to the bottom end inner hole of the hollow tungsten electrode.
A further improvement of the present invention is that the diameter of the annular shape is 0.1-0.3mm.
A further improvement of the present invention is that the method also includes steps: the inertia protection of the inner hole is injected in control
The air velocity of gas is within 5-10L/min.
A further improvement of the present invention is that being passed through the inertia to the inner hole before the welded workpiece welding surface starting the arc
Protective gas stops the inert protective gas after the completion of workpiece welding and is passed through the inner hole.
Hollow tungsten electrode TOPTIG soldering method of the invention, by the way that the tungsten electrode in TOPTIG welding gun is arranged to hollow tungsten electrode,
And the gas access that upper setting protective gas inputs at the top of hollow tungsten electrode, it is formed in the two sides of the bottom of hollow tungsten electrode by grinding
In vertical direction with the angle of 20 ° of sizes；In welding, i.e., it is filled with inert protective gas into TOPTIG welding gun, to protect weldering
The stabilization of the heating zone and welding that connect also injects inert protective gas into the inner hole of hollow tungsten electrode with the air velocity of setting,
Guarantee the stabilization of starting the arc success and electric arc, while a degree of cooling is carried out to hollow tungsten electrode, to promote welding current；With
The prior art is compared, and the present invention, which wears into the two sides of the bottom of hollow tungsten electrode, can guarantee to weld the starting the arc with 20 ° of sizes of vertical direction
Stability, while guaranteeing that tungsten electrode will not so be easy scaling loss；The bottom surface of hollow tungsten electrode is annulus, increases the face of tungsten electrode end
Product, can appropriate increase of weld current；And be arranged in inner hole and inward hole and inject inert gas, then it can increase the electric current of welding,
To achieving the effect that improve bonding speed, improving welding wire deposition rate and improving welding efficiency.
Detailed description of the invention
Fig. 1 is hollow tungsten electrode TOPTIG soldering method schematic diagram described in the embodiment of the present invention；
Fig. 2 is the structure chart signal of hole tungsten electrode described in the embodiment of the present invention.
Identifier declaration: 1- welding wire, 2- electric arc, 3- gas vent, 4- wire feeding mouth, the gas access 5-, 6- protect gas region, 7-
Hollow tungsten electrode, 8- workpiece；
71- inner hole.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
Combined with Figure 1 and Figure 2, in embodiments of the present invention, a kind of hollow tungsten electrode TOPTIG soldering method, the method are provided
It is realized by TOPTIG welding gun, the tungsten electrode in TOPTIG welding gun is set as hollow tungsten electrode 7, and hollow tungsten electrode 7 is used to generate the electricity of welding
Arc 2；And hollow 7 top end part position of tungsten electrode offers gas access 5, and inner hole 71 is provided in hollow tungsten electrode 7, hollow tungsten electrode 7
End portion two sides are arranged in vertical direction with 20 ° of sizes, and offer gas vent 3 in end portion center position；Specifically
, hollow tungsten electrode TOPTIG soldering method of the invention includes step S1, injects inertia guarantor in gas access 5 and TOPTIG welding gun
Protect gas；And step S2, by welding wire 1 with TOPTIG welding gun at 20 ° of angles since wire feeding mouth 4 be sent into electric arc 2 after weld
Welded workpiece 8.
In specific embodiment, inward hole 71 is passed through the inert protective gas before the 8 welding surface starting the arc of welded workpiece,
Stop inert protective gas after the completion of workpiece welding and be passed through inner hole 71, and controls the air-flow of the inert protective gas of injection inner hole 71
Speed is within 5-10L/min.
Preferably, in embodiments of the present invention, the outer diameter of hollow tungsten electrode 7 is excellent is taken as 5mm, and the diameter of inner hole 71 is excellent to be taken as
3mm, and a side section of the inner hole 71 is set as the annulus that a diameter is 0.2mm or so.
The present invention makees to replace solid tungsten electrode using hollow tungsten electrode in TOPTIG welding gun, combine traditional TOPTIG weldering and
TIG welds the advantages of two kinds of welding methods；And since the tungsten electrode of hollow tungsten electrode 7 is thicker, simultaneously because the presence of tungsten electrode inner hole 71,
Inner hole 71 can play certain cooling effect to hollow tungsten electrode 7 when injecting inert protective gas, so that welding current is larger, improve
TOPTIG welding wire melting rate increases TOPTIG and welds welding efficiency；Further, since hollow 7 electric arc straightness of tungsten electrode is high, injection
The inert protective gas of inner hole 71 generates certain stirring action to molten bath, improves weld penetration, and it is solderable can to increase TOPTIG weldering
The plate thickness connect.
And since the angle in hollow 7 bottom end two sides of tungsten electrode and numerical value direction is 20 °, welding wire 1 is sent into wire feeding mouth 4
The angle of TOPTIG welding gun is identical, this ensure that the stability of the starting the arc, while guaranteeing that hollow tungsten electrode is unlikely to be burnt, it can be used
Biggish welding current；While realizing high-speed welding, thermal weld stress is increased, increases welding deposition efficiency and welding speed
Degree, while increasing fusion penetration.
Hollow tungsten electrode TOPTIG soldering method of the invention, by the way that the tungsten electrode in TOPTIG welding gun is arranged to hollow tungsten electrode,
And the gas access that upper setting protective gas inputs at the top of hollow tungsten electrode, it is formed in the two sides of the bottom of hollow tungsten electrode by grinding
In vertical direction with the angle of 20 ° of sizes；In welding, i.e., it is filled with inert protective gas into TOPTIG welding gun, to protect weldering
The stabilization of the heating zone and welding that connect also injects inert protective gas into the inner hole of hollow tungsten electrode with the air velocity of setting,
Guarantee the stabilization of starting the arc success and electric arc, while a degree of cooling is carried out to hollow tungsten electrode, to promote welding current；With
The prior art is compared, and the present invention, which wears into the two sides of the bottom of hollow tungsten electrode, can guarantee to weld the starting the arc with 20 ° of sizes of vertical direction
Stability, while guaranteeing that tungsten electrode will not so be easy scaling loss；The bottom surface of hollow tungsten electrode is annulus, increases the face of tungsten electrode end
Product, can appropriate increase of weld current；And be arranged in inner hole and inward hole and inject inert gas, then it can increase the electric current of welding,
To achieving the effect that improve bonding speed, improving welding wire deposition rate and improving welding efficiency.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the scope of the patents of the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, still can be to aforementioned each tool for coming for those skilled in the art
Technical solution documented by body embodiment is modified, or carries out equivalence replacement to part of technical characteristic.All benefits
The equivalent structure made of description of the invention and accompanying drawing content is directly or indirectly used in other related technical areas,
Similarly within the invention patent protection scope.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388771.7A CN109332857A (en) | 2018-11-21 | 2018-11-21 | A kind of hollow tungsten electrode TOPTIG welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388771.7A CN109332857A (en) | 2018-11-21 | 2018-11-21 | A kind of hollow tungsten electrode TOPTIG welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109332857A true CN109332857A (en) | 2019-02-15 |
Family
ID=65316643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811388771.7A Pending CN109332857A (en) | 2018-11-21 | 2018-11-21 | A kind of hollow tungsten electrode TOPTIG welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332857A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52155152A (en) * | 1976-06-18 | 1977-12-23 | Sumitomo Metal Ind | Tig welding |
| JPS5527418A (en) * | 1978-08-16 | 1980-02-27 | Hitachi Ltd | Welding or cutting method |
| JPS613683A (en) * | 1984-06-18 | 1986-01-09 | Mitsubishi Heavy Ind Ltd | Hollow electrode type tig arc welding method |
| CA2480569A1 (en) * | 2004-09-17 | 2006-03-17 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Poour L'etude Et L'exploitation Des Procedes Georges Claude | Nozzle/wire guide assembly for robotic tig welding torch |
| EP2357055A1 (en) * | 2010-02-11 | 2011-08-17 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Process of TIG arc welding with consumable wire in a narrow gap configuration and use of magnetic field |
| CN108788395A (en) * | 2018-06-22 | 2018-11-13 | 山东大学 | A kind of integral type TIG by the double wire feeds of sidewall symmetry welds nozzle and welding gun |
-
2018
- 2018-11-21 CN CN201811388771.7A patent/CN109332857A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52155152A (en) * | 1976-06-18 | 1977-12-23 | Sumitomo Metal Ind | Tig welding |
| JPS5527418A (en) * | 1978-08-16 | 1980-02-27 | Hitachi Ltd | Welding or cutting method |
| JPS613683A (en) * | 1984-06-18 | 1986-01-09 | Mitsubishi Heavy Ind Ltd | Hollow electrode type tig arc welding method |
| CA2480569A1 (en) * | 2004-09-17 | 2006-03-17 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Poour L'etude Et L'exploitation Des Procedes Georges Claude | Nozzle/wire guide assembly for robotic tig welding torch |
| EP2357055A1 (en) * | 2010-02-11 | 2011-08-17 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Process of TIG arc welding with consumable wire in a narrow gap configuration and use of magnetic field |
| CN108788395A (en) * | 2018-06-22 | 2018-11-13 | 山东大学 | A kind of integral type TIG by the double wire feeds of sidewall symmetry welds nozzle and welding gun |
Non-Patent Citations (3)
| Title |
|---|
| T.OPDERBECKE等: "用于焊接机器人的TOPTIG工艺", 《电焊机》 * |
| 北京航空制造工程研究所: "《航空制造技术》", 31 December 2013, 航空工业出版社 * |
| 机械工业部成都电焊机研究所: "《电焊机》", 31 May 1986, 机械工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190215 |