2 September 2003 Process stabilization by dual focus laser welding of aluminum alloys for car body
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Proceedings Volume 5121, Laser Processing of Advanced Materials and Laser Microtechnologies; (2003) https://doi.org/10.1117/12.515627
Event: Laser Processing of Advanced Materials and Laser Microtechnologies, 2002, Moscow, Russian Federation
Abstract
Aluminum alloys were welded using dual focus beams formed with two Nd:YAG lasers with the aim of obtaining a stable welding process. The relationship between the configuration of the spot beams and the quality of the weld beads was investigated using X-ray and high-speed camera observations. The number of pores was clearly related to the ratio of the keyhole depth to the keyhole opening. A larger keyhole opening and/or a shallower keyhole depth resulted in a smaller number of pores caused by instability of the weld pool. Based on the investigation, a car body component was welded with a dual focus beam system. The results show that aluminum car body panels can be welded stably at high speed with little distortion under optimum conditions.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kimihiro Shibata, Kimihiro Shibata, Takakuni Iwase, Takakuni Iwase, Hiroki Sakamoto, Hiroki Sakamoto, Friedrich H. Dausinger, Friedrich H. Dausinger, Bernd Hohenberger, Bernd Hohenberger, Matthias Mueller, Matthias Mueller, Akira Matsunawa, Akira Matsunawa, Naoki Seto, Naoki Seto, } "Process stabilization by dual focus laser welding of aluminum alloys for car body", Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); doi: 10.1117/12.515627; https://doi.org/10.1117/12.515627
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