Product Code: ICAL07_211
Weld Penetration and Phenomena in 10 Kw Fiber Laser Welding
Seiji Katayama, Osaka University; Osaka Japan
Keisuke Kinoshita, Osaka University Jwri; Osaka Japan
Masami Mizutani, Osaka University; Osaka Japan
Naoyuki Matsumoto, Osaka University; Osaka Japan
Yousuke Kawahito, Osaka University JWRI; Osaka Japan
Presented at ICALEO 2007
10 kW fiber laser welding was performed on Type 304 stainltss steel plates. The effects of laser power and its density on weld penetration and welding defects were established. Plume behaior was observed, spectroscopic analyses of plumes were made, and laser absorption was measured during keyhole-type welding. The formation mechanisms of porosity, humping, underfill and undercut were interpreted from high-speed video cameras and X-ray transmission real time observation method.
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