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Zelixir公司拟议的合作研发项目旨在调查涂层热压成形钢的焊接性。对激光焊接和电阻点焊中涂层行为和组织变化的基本了解将与静态和动态加载条件下的接头力学性能相关。这项研究将为优化焊接参数以及汽车零部件和结构的设计提供指导。该项目还将增加涂层和钢基材在焊接过程中相互作用的知识。断裂模式研究在汽车行业中无处不在，这将为了解冲击条件下焊件的性能提供宝贵的见解。这项研究的结果总体上将有利于加拿大的制造业，并将特别为钢铁和汽车行业提供重要的见解。培训高素质人才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.