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Title:
PRESS-MOLDED ARTICLE, ROLLING BEARING, VEHICLE, MACHINE, METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE, METHOD FOR MANUFACTURING ROLLING BEARING, METHOD FOR MANUFACTURING VEHICLE, AND METHOD FOR MANUFACTURING MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/163642
Kind Code:
A1
Abstract:
This method for manufacturing a press-molded article is provided with: a step for acquiring a first piece (19, 55) by punching a metal material; a step for acquiring a second piece (28, 56) by crushing an edge portion of a second surface (8) of the first piece (19, 55) while the first piece (19, 55) is sandwiched between a first die (26) and a second die (28); and a step for using a pressing process to trim the second piece (28).

Inventors:
NAKAMURA Seiji (JP)
SEKIGUCHI Manabu (JP)
Application Number:
PCT/JP2022/002646
Publication Date:
August 04, 2022
Filing Date:
January 25, 2022
Export Citation:
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Assignee:
NSK LTD. (JP)
International Classes:
B21D28/00; B21D28/02; B21D28/16; B21D53/10; F16C19/30; F16C33/54
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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