公开(公告)号：US20240017345A1

公开(公告)日：2024-01-18

申请号：US18273074

申请日：2022-02-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shuhei OGURA ,  Tomohiko SEKIGUCHI ,  Shotaro KUROKAWA ,  Katsuhiro NAGASAWA ,  Hiroshi ADACHI ,  Daisuke YANAGIBASHI ,  Makoto AOYAMA ,  Keiichirou INAGAKI

IPC: B23K11/20 ,  B23K11/11 ,  B23K35/30 ,  B23K11/00

CPC classification number: B23K11/20 ,  B23K11/115 ,  B23K35/302 ,  B23K11/0066 ,  B23K2103/18

Abstract: A method for joining different kinds of metal materials includes: preparing a rivet, a plurality of metal members, and a first electrode and a second electrode, each having shanks and electrode portions provided at the tips of the shanks; sandwiching the rivet and the plurality of metal members between a first electrode and a second electrode; and embedding the rivet into the metal member by pressurization and energization using the first electrode and the second electrode. The preparation step includes preparing, as the first electrode and the second electrode, two electrodes that satisfy a condition in which each of electrical resistance values of the first and second electrodes is lower than or equal to a sum of an electrical resistance value of the plurality of metal members to be joined and an electrical resistance value of the rivet.