Title:
RESISTANCE WELDING ELEMENT AND RESISTANCE WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/140016
Kind Code:
A1
Abstract:
Provided are a resistance welding element and a resistance welding method whereby an element is easier to maintain in a stable erect orientation on a material to be welded during welding even when increasing the outside diameter of a head part of the element in order to suppress the phenomenon of a nonferrous metal projecting to the outside of the element during welding, and the heat capacity of the element as a whole can be reduced to suppress the current value necessary to form a melting zone. A resistance welding element (40) comprises a substantially disc-shaped head part (41), a shaft part (42) formed so as to protrude from one surface of the head part (41), and a flat part (45a) formed so as to protrude to a central section of the other surface of the head part (41). A first member (20) comprising a nonferrous metal and a second member (30) comprising an iron-based metal are joined by resistance welding through use of the resistance welding element (40), which is formed so that the height of the head part (41) decreases gradually or in steps from the central section to a peripheral section of the head part (41).
Inventors:
MAEDA KYOHEI
SUZUKI REIICHI
SUZUKI REIICHI
Application Number:
PCT/JP2022/046978
Publication Date:
July 27, 2023
Filing Date:
December 20, 2022
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B23K11/20; B23K11/11
Domestic Patent References:
| WO2018042471A1 | 2018-03-08 |
Foreign References:
| US20180172045A1 | 2018-06-21 | |||
| JP2020062668A | 2020-04-23 | |||
| KR20180022498A | 2018-03-06 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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