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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1712

Title: CW ND:YAG laser welding of dissimilar sheet metals
Authors: Theron, M
Van Rooyen, C
Ivanchev, LH
Keywords: Dissimilar lap welding
Welding matrix
Operating windows
Issue Date: Oct-2007
Publisher: ICALEO - International Congress on Applications of Lasers & Electro-Optics
Citation: Theron, M, Van Rooyen, C and Ivanchev, LH. 2007. CW ND:YAG laser welding of dissimilar sheet metals. 26th International Congress on Applications of Lasers & Electro-Optics(ICALEO), 29 October-November 2007, pp 8
Abstract: A 4kW CW Nd:YAG laser was used for lap welding of three different dissimilar sheet metal combinations, namely 316L S/S - Ti64, 316L S/S - Al 5251 and Al 1200 – Cu (99.85%). A welding matrix of laser power, travel speed and spot sizes was investigated in order to determine the operating windows for the specific set-up. Sound lap welds could be obtained with the Al/Cu and SS/Al dissimilar combinations, but only within narrow operating windows. Extremely hard phases were obtained within the fusion zones, especially in the SS/Ti welds, resulting in very brittle welds which were prone to cracking.
Description: 2007: ICALEO
URI: http://hdl.handle.net/10204/1712
Appears in Collections:Laser materials processing
General science, engineering & technology

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