CN1251834C - Compound welding method of argon arc welding with tungsten electrode-consumable electrode using dual power supplies in single side, double arc and molten pool - Google Patents
Compound welding method of argon arc welding with tungsten electrode-consumable electrode using dual power supplies in single side, double arc and molten pool Download PDFInfo
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- CN1251834C CN1251834C CN 03111560 CN03111560A CN1251834C CN 1251834 C CN1251834 C CN 1251834C CN 03111560 CN03111560 CN 03111560 CN 03111560 A CN03111560 A CN 03111560A CN 1251834 C CN1251834 C CN 1251834C
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Abstract
The present invention provides a compound welding method of argon arc welding with a tungsten electrode and a melting electrode using double power supplies in a single-side double-arc molten pool, which relates to the combined application of two welding modes of the tungsten electrode, namely, non-melting electrode argon arc welding (TIG) and melting electrode argon arc welding (MIG). The compound welding method adopts double power supplies, namely, the TIG welding and the MIG welding respectively adopt an independent power supply, non-melting electrode arcs and melting electrode arcs act simultaneously when the welding is carried out, a molten pool is generated, and the welding is carried out. The double power supplies are both DC power supplies used for the TIG welding and the MIG welding, or one of the power supplies of the TIG welding and the MIG welding is the DC power supply, and the other power supply is an AC power supply. The compound welding method overcomes the respective disadvantages of the MIG welding and the TIG welding, and makes use of the advantages of the MIG welding and the TIG welding, the advantages are mutually shared, and the welding efficiency is high.
Description
Technical field
The present invention relates to tungsten electrode is the applied in any combination of non-melting electrode argon arc welding (TIG) and two kinds of welding manners of metal argon arc welding (MIG).
Background technology
TIG weldering and MIG are welded in quality and economy aspect separately pluses and minuses: the quality of TIG weldering is very high, but that it produces efficient is low, on the other hand, and MIG weldering deposition rate height, but welding quality is limited.Gas shield consumable electrode weldering MIG and gas tungsten arc welding TIG have strong point separately, to satisfy in every application the requirement to quality and economic dispatch different aspect.Yet under the pressure of keen competition, the user must adopt the welding procedure of more optimizing more and more.What is interesting is that corresponding TIG weldering and MIG are being welded with distinct pluses and minuses.Promptly " TIG weldering " inevitably and " quality " be associated; And " MIG weldering " is associated with " economy " or " quantity " with giving no cause for much criticism.Prejudice thinks that MIG mainly is applicable to high deposition rate, and TIG is unique high quality welding technology.
Table 1 is comparing of MIG weldering and TIG weldering characteristics
| Performance | Quality | |||
| Standard | Deposition rate and speed | The situation of splashing | Thickness of slab | Weld seam starting and ending portion |
| The MIG weldering | Excellent | Difference | Excellent | Difference |
| The TIG weldering | Difference | Excellent | Difference | Excellent |
Summary of the invention
The object of the present invention is to provide the two arcs of a kind of tungsten electrode-consuming electrode argon arc welding dual power supply single face with the molten bath complex welding method, it should have the shortcoming that overcomes MIG weldering and TIG weldering, utilizes MIG weldering and the common advantage of TIG weldering, has complementary advantages the characteristics that welding efficiency is high.The present invention adopts dual power supply, it is the power supply that TIG weldering and MIG weldering are adopted oneself respectively, non-melt pole electrical arc and melt pole electrical arc act on simultaneously during welding, producing a molten bath welds, described dual power supply is that TIG weldering and MIG weldering all are dc sources, or one of power supply welding of the power supply of TIG weldering and MIG be dc source another be AC power.The present invention is because the effect of the electric arc that the welding wire process MIG power supply of consumable electrode produces, not only welding wire is carried out preheating but also increased the input of heat, so fusion penetration is all darker than independent non-melt pole welding and consumable electrode welding, and because arc stability when adopting the non-melt pole welding, remedied the shortcoming of independent employing consumable electrode welding arc shakiness, having realized can melting efficiency height, the requirement that can reduce to splash again.The present invention not only can weld thin plate, and the welding of suitable slab, non-melt pole adopts AC power, consumable electrode adopts the form of dc source then to be fit to welding aluminum alloy, because the alternating current arc of non-melt pole welding can effectively be removed the oxide-film of aluminum alloy surface, and the direct-current arc of consumable electrode welding can increase the efficient of fusing.The present invention has and has overcome MIG welding and TIG welding shortcoming separately, has utilized MIG welding and TIG to weld common advantage, mutual supplement with each other's advantages, advantage that welding efficiency is high.
Description of drawings
Fig. 1 is the welding schematic diagram that TIG weldering and MIG weldering are all dc source, Fig. 2 is that the TIG weldering is the welding schematic diagram of dc source for AC power, MIG weldering, Fig. 3 is that the TIG weldering is the welding schematic diagram of AC power for dc source, MIG weldering, Reference numeral 1 is the TIG welding gun among the figure, the 2nd, and MIG welding gun, the 3rd, workpiece, the 4th, the TIG dc source, the 5th, MIG dc source, the 6th, TIG AC power, the 7th, MIG AC power.
The specific embodiment
The specific embodiment one: present embodiment adopts dual power supply, it is the power supply that TIG weldering and MIG weldering are adopted oneself respectively, non-melt pole electrical arc and melt pole electrical arc act on simultaneously during welding, producing a molten bath welds, described dual power supply is that TIG weldering and MIG weldering all are dc sources, or one of the power supply of the power supply of TIG weldering and MIG weldering is a dc source, another is an AC power, in the TIG weldering is AC power, when the MIG weldering is dc source, on the AC power of TIG weldering and the branch road between the welding gun, be in series with capacitor C, on the positive pole of the dc source of MIG weldering and the branch road between the welding gun, be in series with inductor L; TIG weldering is dc source, when the MIG weldering is AC power, be in series with inductor L on the positive pole of the dc source of TIG weldering and the branch road between the welding gun, is in series with capacitor C on the AC power of MIG weldering and the branch road between the welding gun.The TIG weldering is that AC power, MIG weld when being dc source, and the effect of series capacitor C is to prevent that the direct current in the MIG branch road from entering into TIG weldering branch road in TIG weldering branch road; The effect of series reactor L is to prevent that the interchange in the TIG weldering branch road from entering into the branch road of MIG weldering in MIG weldering branch road, and vice versa.The TIG weldering is that AC power, MIG weld when being dc source, and the positive pole of MIG weldering dc source connects welding gun, and its negative pole connects weldment; The TIG weldering is that dc source, MIG weld when being AC power, and the positive pole of TIG weldering dc source connects welding gun, and its negative pole connects weldment.When TIG weldering and MIG weldering all were dc source, the positive source of TIG weldering connect weldment, and its negative pole connects welding gun; The positive source of MIG weldering connects welding gun, and its negative pole connects weldment.
Claims (3)
1, the two arcs of tungsten electrode-consuming electrode argon arc welding dual power supply single face are with the molten bath complex welding method, it is characterized in that its employing dual power supply, it is the power supply that TIG weldering and MIG weldering are adopted oneself respectively, non-melt pole electrical arc and melt pole electrical arc act on simultaneously during welding, producing a molten bath welds, described dual power supply is that TIG weldering and MIG weldering all are dc sources, or one of the power supply of the power supply of TIG weldering and MIG weldering is a dc source, another is an AC power, in the TIG weldering is AC power, when the MIG weldering is dc source, on the AC power of TIG weldering and the branch road between the welding gun, be in series with capacitor C, on the positive pole of the dc source of MIG weldering and the branch road between the welding gun, be in series with inductor L; TIG weldering is dc source, when the MIG weldering is AC power, be in series with inductor L on the positive pole of the dc source of TIG weldering and the branch road between the welding gun, is in series with capacitor C on the AC power of MIG weldering and the branch road between the welding gun.
2, the two arcs of tungsten electrode-consuming electrode argon arc welding dual power supply single face according to claim 1 is characterized in that with the molten bath complex welding method TIG weldering is that AC power, MIG weld when being dc source, and the positive pole of MIG weldering dc source connects welding gun, and its negative pole connects weldment; The TIG weldering is that dc source, MIG weld when being AC power, and the positive pole of TIG weldering dc source connects welding gun, and its negative pole connects weldment.
3, the two arcs of tungsten electrode-consuming electrode argon arc welding dual power supply single face according to claim 1 are with the molten bath complex welding method, and when it is characterized in that TIG weldering and MIG weldering all are dc source, the positive source of TIG weldering connects weldment, and its negative pole connects welding gun; The positive source of MIG weldering connects welding gun, and its negative pole connects weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111560 CN1251834C (en) | 2003-04-25 | 2003-04-25 | Compound welding method of argon arc welding with tungsten electrode-consumable electrode using dual power supplies in single side, double arc and molten pool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03111560 CN1251834C (en) | 2003-04-25 | 2003-04-25 | Compound welding method of argon arc welding with tungsten electrode-consumable electrode using dual power supplies in single side, double arc and molten pool |
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| CN1446662A CN1446662A (en) | 2003-10-08 |
| CN1251834C true CN1251834C (en) | 2006-04-19 |
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| CN 03111560 Expired - Fee Related CN1251834C (en) | 2003-04-25 | 2003-04-25 | Compound welding method of argon arc welding with tungsten electrode-consumable electrode using dual power supplies in single side, double arc and molten pool |
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Cited By (2)
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| CN102615382A (en) * | 2012-04-11 | 2012-08-01 | 李峻野 | Twin carbon arc overlay welding method for wear-resistant composite steel plate |
| CN102615398A (en) * | 2012-03-20 | 2012-08-01 | 哈尔滨工业大学 | Perforated TIG (Tungsten Inert Gas) arc melting brazing method of dissimilar metal |
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2003
- 2003-04-25 CN CN 03111560 patent/CN1251834C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615398A (en) * | 2012-03-20 | 2012-08-01 | 哈尔滨工业大学 | Perforated TIG (Tungsten Inert Gas) arc melting brazing method of dissimilar metal |
| CN102615398B (en) * | 2012-03-20 | 2014-07-09 | 哈尔滨工业大学 | Perforated TIG (Tungsten Inert Gas) arc melting brazing method of dissimilar metal |
| CN102615382A (en) * | 2012-04-11 | 2012-08-01 | 李峻野 | Twin carbon arc overlay welding method for wear-resistant composite steel plate |
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| CN1446662A (en) | 2003-10-08 |
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