MIG Arc Welding of Magnesium Alloy(Physics, Processes, Instruments & Measurements, INTERNATIONAL SYMPOSIUM OF JWRI 30TH ANNIVERSARY)
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- FUJIE M.
- Osaka University
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- NAKATA Kazuhiro
- Osaka University
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- TONG Hongjun
- DAIHEN Corporation
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- USHIO Masao
- Osaka University
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Abstract
AZ31 magnesium alloy sheet of 1.6mm in the thickness was successfully welded at the high speed of 300cm/min using AZ61 filler wire and DC pulse MIG arc welding. The range of the appropriate welding condition was determined from bead appearance and macrostructure by changing the parameters of the welding current and welding speed. The welded bead was grouped by three-grades ; a burn-through bead, a sufficient penetration and an insufficient penetration bead. The tensile strength of the butt-joint was 250MPa, which was 98% of that of the base metal. The elongation was 6%, much lower than that of base metal of 13%.
Journal
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- Trans. JWRI
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Trans. JWRI 32 39-40, 2003
Osaka University