Invention Grant
- Patent Title: Pressed article manufacturing method and press mold
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Application No.: US15321659Application Date: 2015-06-26
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Publication No.: US10730092B2Publication Date: 2020-08-04
- Inventor: Takashi Miyagi , Misao Ogawa , Toshimitsu Aso , Yasuharu Tanaka , Keiichi Murakami
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@60187751
- International Application: PCT/JP2015/068554 WO 20150626
- International Announcement: WO2015/199231 WO 20151230
- Main IPC: B21D22/20
- IPC: B21D22/20 ; B21D22/26 ; B21D24/00

Abstract:
A pressed article manufacturing method employing a press mold equipped with a punch and a die to manufacture a pressed article including a first wall, a second wall extending out from an end portion on at least one length direction side of the first wall toward a back face side of the first wall, and a third wall extending out from a leading end portion of the second wall toward a front face side of the second wall. The manufacturing method includes using the punch and the die to apply pressure to and grip a portion on a base end side of the second wall in a first warp shape in which the base end side portion is warped so as to be convex on a back face side of the second wall as viewed in lateral cross-section in a state prior to demolding from the press mold.
Public/Granted literature
- US20170151599A1 PRESSED ARTICLE MANUFACTURING METHOD AND PRESS MOLD Public/Granted day:2017-06-01
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