Laser and resistance spot welding of coated hot press forming steel

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The proposed collaborative research and development project between the University of Waterloo, ArcelorMittal Dofasco, a producer of automotive steel products, and Zelixir, a company dedicated exclusively to the interests of zinc and its users, aims to investigate the weldability of coated hot press forming steel. Fundamental understanding of coating behaviour and microstructural change in laser beam welding and resistance spot welding will be correlated to joint mechanical performance under static and dynamic loading conditions. The investigation will provide guidelines for optimizing welding parameters and also for design of automotive components and structure. This project will also increase the knowledge of coating and steel substrate interactions when subjected to welding processes. The ubiquity of fracture mode investigation, as it pertains to the automotive industry, will provide invaluable insight regarding weldment performance under impact conditions. The results of the study will be beneficial to the Canadian manufacturing sectors in general, and will specifically contribute significant insights to the steel and automotive industries. Training of highly qualified personnel (HQP) will assist in fostering talent in the manufacturing industry and simultaneously strengthen the reputation of the University Waterloo as a world-renown research institution.