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.com
Volume 4, Issue 4 (Suppl)
J Laser Opt Photonics, an open access journal
ISSN: 2469-410X
Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8
th
International Conference and Exhibition on
Lasers, Optics & Photonics
The welding modes in Laser-arc hybrid lap welding of dissimilar metals
Hongyang Wang, Baoqiang Feng
and
Liming Liu
Dalian University of Technology, China
T
he pluse laser-tungsten inert gas hybrid welding method was adopted to realize the welding dissimilar alloys process. The
welding modes in the laser-arc hybrid welding lap joint were changed with the varying of laser and arc parameters, which
made obviously effects on the dissimilar joints. In Ti and steel dissimilar welding lap joint with Cu interlayer, the welding mode
in both of Ti and steel fusion zone were in conductive mode and the thickness of the intermetallic was limited by the accurate
control of the welding heat. In Mg and Al alloys dissimilar welding lap joint with Ni interlayer, the welding mode in Mg fusion
zone was in keyhole mode and Al fusion zone in conductive mode and the intermetallics was inhibited by the welding mode
and interlayer. In Al and steel dissimilar welding lap joint with Cu interlayer, the welding modes in both of Al and steel fusion
zone were in keyhole mode, but the thickness of the Al-Fe intermetallic was less than 10μm, which was reduced by the hybrid
effect of the Cu interlayer and the welding sources. The welding mode should be changed by the character of the dissimilar
metals. The formation and distribution of the intermetallic was decided by the welding sources, base metal and the welding
process, which made obvious effect on the property of the joint.
Biography
Hongyang Wang received his PhD in Materials Manufacture Major from Dalian University of Technology, China. Now, he is working as an Associate Professor of
Dalian University of Technology, a Deputy Director of Key Laboratory of Liaoning Province in China. He is mainly committed to lights welding and dissimilar welding
process. His research has brought him more than 20 papers in reputed journals with more than 200 of SCI citation.
wang-hy@dlut.edu.cnHongyang Wang et al., J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017