Laser and resistance spot welding of coated hot press forming steel

滑铁卢大学、汽车钢产品生产商ArcelorMittal Dofasco和专门致力于锌及其用户利益的Zelixil公司之间拟议的合作研发项目旨在研究涂层热压成型钢的可焊性。对激光束焊接和电阻点焊中的涂层行为和微观结构变化的基本理解将与静态和动态载荷条件下的接头机械性能相关。研究结果可为优化焊接工艺参数和汽车零部件及结构设计提供指导。该项目还将增加涂层和钢基体在焊接过程中相互作用的知识。断裂模式调查的普遍性，因为它涉及到汽车工业，将提供宝贵的洞察力，在冲击条件下的焊件性能。该研究的结果将有利于加拿大制造业，特别是对钢铁和汽车行业的重要见解。高素质人才（HQP）的培训将有助于培养制造业人才，同时加强滑铁卢大学作为世界知名研究机构的声誉。

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.