公开(公告)号：US20160228980A1

公开(公告)日：2016-08-11

申请号：US15021930

申请日：2014-09-12

Applicant: UNIVERSITÄT STUTTGART

Inventor： Martin WERZ ,  Max HOSSFELD ,  Oliver VOLZ

IPC: B23K20/12 ,  B23K20/227

CPC classification number: B23K20/125 ,  B23K20/1255 ,  B23K20/227 ,  B23K20/2275 ,  B23K33/002

Abstract: Provided is a method and tool for butt welding a first material piece of metal to a second material piece of metal at opposed longitudinal edges. The second material piece has a greater material thickness than the first material piece. The first material piece has a higher tensile strength and/or a higher melting temperature and/or a higher yield strength and/or a higher modulus of elasticity than the second material piece. A thickened longitudinal edge is provided at the first material piece. The thickening of the longitudinal edge is at least partly produced by at least simple folding, beading or winding of the first material piece or at least partly by beveling the first material piece at its edge. The two material pieces are friction-stir welded at their front along the opposed longitudinal edges.

Abstract translation: 提供了一种用于将第一材料片对接到在相对的纵向边缘处的金属的第二材料片的方法和工具。 第二材料件具有比第一材料件更大的材料厚度。 第一材料片具有比第二材料片更高的拉伸强度和/或更高的熔化温度和/或更高的屈服强度和/或更高的弹性模量。 在第一材料件处设置加厚的纵向边缘。 纵向边缘的增厚至少部分地通过至少简单的第一材料片的折叠，卷边或卷绕部分产生，或至少部分地通过在其边缘处使第一材料片倒角。 两个材料片沿其相对的纵向边缘在其前部摩擦搅拌焊接。