Using cold metal transfer (CMT) welding which was a special pulse metal inert gas (MIG) welding method, a new hybrid welding, laser-CMT hybrid welding, was introduced to join aluminum alloy thin plate. In order to evaluate laser-CMT hybrid welding, a comparison research on the microstructures and mechanical properties of aluminum alloy joints made by laser welding (LW), CMT welding, laser-CMT hybrid welding (LCHW) and laser-pulse-MIG hybrid welding (LPHW) was carried out. Because of lower heat input, the LW and LCHW joints had smaller grain sizes and narrower widths of welds than these of CMT and LPHW joints. The ultimate tensile strengths of LW, CMT, LCHW and LPHW joints reached up to 220MPa, 200MPa, 219MPa, and 198MPa, respectively. Meanwhile, the LW and LCHW joints brought less deformation in comparison with CMT and LMHW joint. These results showed LCHW had obvious advantages in joint quality, indicating it would be a suitable technique for joining aluminum alloys.
Skip Nav Destination
ICALEO 2012: 31st International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing
September 23–27, 2012
Anaheim, California, USA
ISBN:
978-0-912035-96-3
PROCEEDINGS PAPER
A comparative study of laser, CMT, laser-pulse MIG hybrid and laser-CMT hybrid welded aluminium alloy Available to Purchase
Chen Zhang;
Chen Zhang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
, Wuhan, Hubei 430074, PR China
Search for other works by this author on:
Ming Gao;
Ming Gao
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
, Wuhan, Hubei 430074, PR China
Search for other works by this author on:
Geng Li;
Geng Li
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
, Wuhan, Hubei 430074, PR China
Search for other works by this author on:
Xiaoyan Zeng
Xiaoyan Zeng
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
, Wuhan, Hubei 430074, PR China
Search for other works by this author on:
Published Online:
September 01 2012
Citation
Chen Zhang, Ming Gao, Geng Li, Xiaoyan Zeng; September 23–27, 2012. "A comparative study of laser, CMT, laser-pulse MIG hybrid and laser-CMT hybrid welded aluminium alloy." Proceedings of the ICALEO 2012: 31st International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. ICALEO 2012: 31st International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Anaheim, California, USA. (pp. pp. 430-434). ASME. https://doi.org/10.2351/1.5062483
Download citation file:
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.