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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:27 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
Investigation of dissimilar laser welding of stainless steel 316L to aluminium A1050 in lap joints configuration
Authors:
Diana CHIOIBASU(1), Damjan KLOBCAR(2), Dan SPOREA(1), Anton SMOLEJ(3), Aleš NAGODE(3), Irina Alexandra PAUN(1), Andrei POPESCU(1), Catalin Romeo LUCULESCU(1), Mihai SAVESCU(1), Bogdan Stefanita CALIN(1)
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Affiliation:
1Center for Advanced Laser Technologies (CETAL), National Institute for Laser, Plasma and Radiation Physics, Magurele, Bucharest, RO-077125, Romania
2University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
3University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva 12, 1000 Ljubljana, Slovenia
E-mail
dianachioibasu90@gmail.com
Keywords:
Dissimilar SS - Al welding; Fiber Laser welding; Lap joint configuration; Tensile strength.
Abstract:
Laser welding technique, using a continuous wave (CW) fibre laser with 400 W of maximum power, was applied in lap joint configuration to weld 1 mm thick stainless steel (SS 316L) to 1 mm thick aluminium (A 1050) with the stainless steel on the top. The laser was used at maximum power for ensuring full penetration depth and further on, laser process parameters, like laser velocity and focusing position, were optimized in order to produce pore free and aesthetic welds. The dissimilar joints were studied by optical metallography and scanning electron microscopy (SEM) and mechanically evaluated by pull-out tests. Based on the analyses results, the potential of this joining method will be discussed.
Acknowledgement:
This work was supported by the COST Action MP1401: Advanced fibre laser and coherent source as tools for society, manufacturing and lifescience. It was a collaboration between two Institutions University of Ljubljana and National Institute for Laser, Plasma and Radiation Physics
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