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目前激光拼焊技术在汽车车身设计中被广泛采用。拼焊板是将几块不同材质、不同厚度、不同涂层的钢板焊接成一体的钢板,以满足零部件对材料性能及厚度的不同要求。激光拼焊技术与热冲压成形技术、液压成形技术均为超轻车体项目中重点推荐的三大技术,具有减重、提高安全性、节省材料等多项优势,为汽车用材技术发展的一大趋势。主要介绍了激光拼焊板技术的发展、特点、优势、亟待解决的问题、研究热点、应用现状以及国内市场的发展前景。
At present, laser welding technology is widely used in automobile body design. Tailor welded plate is a few pieces of different materials, different thickness, different coating of steel welded into one plate to meet the different parts of the material properties and thickness of the different requirements. Laser welding technology and hot stamping forming technology, hydroforming technology are ultra-light body project focused on the three recommended technologies, with weight loss, improve safety, save materials and many other advantages for the automotive materials technology development of a Trend. This paper mainly introduces the development, features, advantages, problems to be solved, research hotspots, application status and the development prospects of the domestic market.