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Proceedings Paper

Laser micro-spot welding of AISI 302 stainless steel sheets
Author(s): Luis D. Cedeño-Viveros; Erika García-López; Elisa V. Vázquez; Héctor R. Siller; Ciro A. Rodríguez
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Paper Abstract

Laser Micro-Spot Welding (LMSW) of metal sheets is a process widely used in medical, automotive and aerospace industries. This paper shows a process parameter selection for LMSW with AISI 302 stainless sheets, 254 μm in thickness. Experimental tests considered laser power, exposure time and focal distance parameters. The experimental setup produces the laser focal point over the part surface with a focal distance of 13.00 mm. The best results were obtained with an unfocused beam at a focal distance of 16.00 mm. Under the experimental conditions of this research, successful joining of AISI 302 thin sheets through LMSW is achieved with a combination of 175 W of average laser power and 0.25 s of exposure time (or a combination of 125 W and 1.00 s.). The width of the heat-affected zone (HAZ) was found to be 8% larger than the spot weld width, in average.

Paper Details

Date Published: 19 February 2018
PDF: 7 pages
Proc. SPIE 10520, Laser-based Micro- and Nanoprocessing XII, 1052018 (19 February 2018); doi: 10.1117/12.2290003
Show Author Affiliations
Luis D. Cedeño-Viveros, Tecnológico de Monterrey (Mexico)
Erika García-López, Tecnológico de Monterrey (Mexico)
Elisa V. Vázquez, Tecnológico de Monterrey (Mexico)
Héctor R. Siller, Univ. of North Texas (United States)
Ciro A. Rodríguez, Tecnológico de Monterrey (Mexico)

Published in SPIE Proceedings Vol. 10520:
Laser-based Micro- and Nanoprocessing XII
Udo Klotzbach; Kunihiko Washio; Rainer Kling, Editor(s)

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