Protective gas for CO2 laser arc hybrid welding Al alloy

TAN Bing; LIU Hong-wei; MA Bing; CHEN Dong-gao; REN Bao-hui; MING Zhu; MA Zhi-hua

doi:10.3969/j.issn.1001-806.2012.04.015

LASER TECHNOLOGY > 2012 > 36(4): 497-500. > DOI: 10.3969/j.issn.1001-806.2012.04.015

TAN Bing, LIU Hong-wei, MA Bing, CHEN Dong-gao, REN Bao-hui, MING Zhu, MA Zhi-hua. Protective gas for CO2 laser arc hybrid welding Al alloy[J]. LASER TECHNOLOGY, 2012, 36(4): 497-500. DOI: 10.3969/j.issn.1001-806.2012.04.015

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Protective gas for CO2 laser arc hybrid welding Al alloy

Ningbo Branch, China Academy of Ordnance Science, Ningbo 315103, China

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Received Date: November 28, 2011
Revised Date: December 25, 2011
Published Date: July 24, 2012

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The protective gas plays an important role in the CO2 laser metal intertia gas(MIG)hybrid welding of aluminum alloy.The laser-MIG hybrid welding was carried out on 5052 Al alloy plates at different flow rates of He,Ar mixed protective gas,and the data about penetration depth and welding voltages were obtained.The results show when He is added to protective gas,the arc voltage of MIG will increase,and Arc stability reduces so that the weld penetration is affected by the pure He protective gas.The surface quality and the arc stability are improved when a little Ar gas is mixed with He protective gas,and the weld penetration is added.When the ratio of V(Ar):V(He)=5:25,the weld penetration is maximum.When a great amount of Ar is added to He protective gas,the weld penetration is decreased,even the deep penetration of laser welding is prevented.When using pure Ar gas,although the weld appearance is beautiful,but the weld penetration is very small.The results have an important role in the weld quality of the CO2 laser-MIG arc hybrid welding aluminum.
- laser technique,
- protective gases,
- laser welding,
- metal intertia gas,
- hybrid welding,
- Al alloy

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[1]	CHENG Y B.Modern laser welding technology[M].Beijing:Science Press,2006:89(in Chinese).
[1]	SOLOLOWSKI W,HERZINGER G,BEYER E.Spectral plasma diagnostics in welding with CO2 lasers[J].SPIE,1988,1020:96-102.
[2]	OTTO A,DEINZER G,GEIGER M.Control of transient processes during CO2-laser beam welding[J].SPIE,1994,2207:77-84.
[3]	FABBRO R.Beam-plasma coupling in laser material processing[C]//Proceedings of Laser Aduanced Materials Processing' 92.Roma,Italy:United Nations Industrial Development Organization,1992:305-310.
[4]	CARMIGNANI C,MARES R,TOSELLI G.Transient finite element analysis of deep penetration laser welding process in a single pass buttwelded thick steel plate[J].Methods Applied Mechanics Engineering,1999,179 (3/4):197-214.
[5]	STEGMAN R L,SCHRIEMPF J T,HETICHE L R.Experimental studies of laser-supported absorption waves with 5ms pulsed of 10.61μm radiation[J].Applied Physics,1973,44(8):3675-3681.
[6]	FOWLER M C,SMlTH D C.Ignition and maintenance of subsonic plasma waves in atmospheric pressure air by CW CO2 laser radiation and their effect on laser beam propagation[J].Applied Physics,1975,46(1):138-150.
[7]	MATSUNAWA A,YOSHIDA H,KATAYAMA S.Beam-plume interaction in pulsed YAG laser processing[C]//International Congress on Applications of Lasers & Electro-Optics(1984).New York,USA:International Congress on Applications of Lasers & Electo-Optics,1984:35-42.

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