Invention Grant
- Patent Title: Hat-shaped cross-section component manufacturing apparatus and manufacturing method
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Application No.: US15029574Application Date: 2014-10-16
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Publication No.: US10016804B2Publication Date: 2018-07-10
- Inventor: Yasuharu Tanaka , Toshimitsu Aso , Takashi Miyagi , Misao Ogawa , Shinobu Yamamoto , Eizo Hayashida
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2013-221522 20131024
- International Application: PCT/JP2014/077612 WO 20141016
- International Announcement: WO2015/060202 WO 20150430
- Main IPC: B21J5/02
- IPC: B21J5/02 ; B21D22/26 ; B21D24/04 ; B21D45/02

Abstract:
A hat-shaped cross-section component manufacturing apparatus includes: a die that includes a forming face that presses both side portions of a metal stock sheet; a punch that includes a forming face that presses a central portion of the metal stock sheet; a pad that includes a forming face that presses and grips the central portion of the metal stock sheet against the punch; and a blank holder that includes a forming face that presses and grips the both side portions of the metal stock sheet against the die. The hat-shaped cross-section component manufacturing apparatus further includes a pressure limiting device configured including a floating block that moves together with the blank holder when forming of a curving component has been completed, that is interposed between the pad and the blank holder, and that limits pressing of the formed curving component between the pad and the blank holder during demolding.
Public/Granted literature
- US20160271682A1 HAT-SHAPED CROSS-SECTION COMPONENT MANUFACTURING APPARATUS AND MANUFACTURING METHOD Public/Granted day:2016-09-22
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