Title:
METHOD FOR MANUFACTURING RIVET JOINT STRUCTURE, RIVET JOINT STRUCTURE AND AUTOMOBILE COMPONENTS
Document Type and Number:
Japanese Patent JP2021154377
Kind Code:
A
Abstract:
To provide: a method for manufacturing a rivet joint structure that can provide a structure having higher cross tension strength; and a rivet joint structure and automobile components that have higher cross tension strength.SOLUTION: A method for manufacturing a rivet joint structure comprises the steps of: inserting a metal rivet 110 into a plurality of members 100 and 100' formed with through holes; and sandwiching the rivet 110 between a pair of electrodes 150 and 150', pressurizing the rivet and energizing the pair of electrodes 150 and 150' to generate resistance heat in the rivet 110 in a state where a gap is generated between a member, closest to a head portion 112 in a direction along an axis of the shaft portion 111, of the plurality of members 100 and 100' and the head portion 112, so as to form a deformed portion 117 at an end portion of the shaft portion 111 on a side where the head portion 112 is not provided, as well as to radially expand a part of the shaft portion 111 to the gap to form a radially expanded portion 118.SELECTED DRAWING: Figure 4
Inventors:
FUJIMOTO HIRONORI
IMAMURA TAKASHI
MATSUI SHO
IMAMURA TAKASHI
MATSUI SHO
Application Number:
JP2020060161A
Publication Date:
October 07, 2021
Filing Date:
March 30, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B21J15/00; B21J15/02; B21J15/14; B23K9/00; B23K11/11; B23K26/21; B60R19/04; B62D25/04; F16B5/04; F16B19/06
Domestic Patent References:
| JPS5527455A | 1980-02-27 | |||
| JP2006507128A | 2006-03-02 | |||
| JPS5157366A | 1976-05-19 | |||
| JP2017159896A | 2017-09-14 |
Foreign References:
| WO2019176371A1 | 2019-09-19 | |||
| WO2015008589A1 | 2015-01-22 |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi