公开(公告)号：US20240351134A1

公开(公告)日：2024-10-24

申请号：US18684478

申请日：2022-08-03

Applicant: OSAKA UNIVERSITY

Inventor： Hidetoshi FUJII ,  Yoshiaki MORISADA ,  Hiroki FUJIMOTO ,  Hiroyuki HIRATA ,  Shinji KODAMA

IPC: B23K20/12 ,  B23K103/04

CPC classification number: B23K20/1205 ,  B23K20/129 ,  B23K2103/04

Abstract: Provided are: a method for friction-joining galvanized steel sheets in which admixture of zinc into a joined part is effectively suppressed, and with which it is possible to obtain a joined part that is coated with a galvanized layer; and a joined structure obtained through the aforementioned joining method. A friction-joining method characterized by having a first step for bringing one member into contact with another member to form a joining interface, a second step for repeatedly causing the one member and the other member to slide on the same trajectory in a state in which pressure is applied substantially perpendicularly to the joining interface and eliminating burrs from the joining interface, and a third step for stopping the sliding and forming a joined surface, the friction-joining method also being characterized in that the one member and/or the other member is configured as a galvanized steel sheet, and in that admixture of a galvanized component into the joined surface is suppressed due to the elimination of the burrs.