Microstructures and property of butt laser joints of aluminium alloy 5A06 sheets with filler

YU Yang-chun; WANG Chun-ming; YU Sheng-fu

doi:10.3969/j.issn.1001-3806.2010.01.010

LASER TECHNOLOGY > 2010 > 34(1): 34-36,52. > DOI: 10.3969/j.issn.1001-3806.2010.01.010

YU Yang-chun, WANG Chun-ming, YU Sheng-fu. Microstructures and property of butt laser joints of aluminium alloy 5A06 sheets with filler[J]. LASER TECHNOLOGY, 2010, 34(1): 34-36,52. DOI: 10.3969/j.issn.1001-3806.2010.01.010

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Microstructures and property of butt laser joints of aluminium alloy 5A06 sheets with filler

Material Science and Technology College, Huazhong University of Science and Technology, Wuhan 430074, China

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Received Date: November 05, 2008
Revised Date: December 17, 2008
Published Date: January 24, 2010

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Abstract

In order to study the microstructure and property of butt joints of aluminum alloy 5A06,the butt joint of 2mm thick aluminum alloy 5A06 sheets was filled with SA1-Mg5 wire and welded with a 3kW Nd:YAG laser. The chemical elements in the welding seam were almost the same as those of the substrate. Its microstructure was fine,dense columnar crystals near to the fusion area and fine dendrites in the center, and the width of heat affected zone was only from 50μm to 100μm. The tensile strength and elongation were respective up to 93% and 58% of that of the substrate metal. The entire joint was broken in the heat affected zone, the scanning electron microscope observation showed that the fracture surface of 5A06 alloy and welded joint exhibited hybrid tough fracture of dimple and tear ridge. The results show that the butt laser welding aluminum alloy with appropriate component filler wire can erase the falling, undercut and sag which is inevitably with laser autogenous welding, and the property of joints is improved a lot.
- laser technique,
- 5A06 aluminum alloy,
- laser welding with filling wire,
- microstructure,
- tensile strength

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[1]	YU J,WANG K H,XU Y L,et al.Microstructures and properties of 7A52 aluminum alloy welded joint by twin wire welding[J].Transactions of the China Welding Institution,2005,26(10):87-90(in Chinese).
[1]	ZHOU W Sh,YAO J Sh.Welding of aluminum and aluminum alloy[M].Beijing:China Machine Press,2006:26-59(in Chinese).
[2]	XU L H,TIAN Zh L,PENG Y,et al.Comparison of MIG welding and laser-MIG welding of high strength aluminum alloy[J].Transactions of the China Welding Institution,2007,28(2):38-42(in Chinese).
[3]	LÜSh X,LI L Q,SHI J W,et al.AC pulsed gas tungsten arc welding technology for dissimilar aluminum alloy ZL101A and LF6[J].Welding&Joining,2007(9):42-45(in Chinese).
[4]	WANG X J,HUANG W R,WEI Q L,et al.Evaporation loss of Mg element in 5A06 aluminum alloy electron beam welding[J].Transactions of the China Welding Instition,2006,27(11):61-65(in Chinese).
[5]	YOON J W,LEE Y S,LEE K D,et al.Effect of filler wire composition on the Nd:YAG laser weldability of 6061 aluminum alloy[J].Materials Science Forum,2005,475/479:2591-2594.
[6]	MAYER C,FOUQUET F,ROBIN M.Laser welding of aluminium-magnesium alloys sheets process optimization and welds characterization[J].Material Science Forum,1996,217/222:1679-1684.
[7]	ZHAO H,DEBROY T.Weld metal composition changes during conduction mode laser welding of aluminum alloy 5182[J].Metallurgical and Materials Transactions,2001,B32(1):163-172.
[8]	ANCONA A,SIBILLANO T,TRICARICO L,et al.Comparison of two different nozzles for laser beam welding of AA5083 aluminium alloy[J].Journal of Materials Processing Technology,2005,164/165:971-977.
[9]	BRAUN R.Nd:YAG laser butt welding of AA6013 using silicon and magnesium containing filler powders[J].Materials Science and Engineering,2006,A426(1/2):250-262.
[10]	WANG J Ch.Development and expectation of laser welding technology[J].Laser Technology,2001,25(1):48-54(in Chinese).

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