Invention Grant
- Patent Title: Formed material manufacturing method and formed material
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Application No.: US14769669Application Date: 2014-05-14
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Publication No.: US09669440B2Publication Date: 2017-06-06
- Inventor: Naofumi Nakamura , Yudai Yamamoto , Jun Kurobe
- Applicant: NISSHIN STEEL CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: Nisshin Steel Co., Ltd.
- Current Assignee: Nisshin Steel Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: JP2014-057529 20140320
- International Application: PCT/JP2014/062849 WO 20140514
- International Announcement: WO2015/141017 WO 20150924
- Main IPC: B21C1/22
- IPC: B21C1/22 ; B21D22/20 ; B21D24/06

Abstract:
A formed material is manufactured by performing forming including at least one drawing-out process and at least one drawing process performed after the drawing-out process. A punch 31 used in the drawing-out process is formed to be wider on a rear end side than on a tip end side. By pushing a raw material metal plate into a pushing hole 30a together with the punch 31, ironing is performed on a region of the raw material metal plate corresponding to a flange portion.
Public/Granted literature
- US20160207085A1 FORMED MATERIAL MANUFACTURING METHOD AND FORMED MATERIAL Public/Granted day:2016-07-21
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