Invention Grant
- Patent Title: Draw forming method
- Patent Title (中): 成型法
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Application No.: US14655176Application Date: 2013-12-25
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Publication No.: US09592544B2Publication Date: 2017-03-14
- Inventor: Seiji Inoue , Yusuke Matsuno , Yasushi Murakami
- Applicant: NISSAN MOTOR CO., LTD.
- Applicant Address: JP Yokohama-shi
- Assignee: NISSAN MOTOR CO., LTD.
- Current Assignee: NISSAN MOTOR CO., LTD.
- Current Assignee Address: JP Yokohama-shi
- Agency: Foley & Lardner LLP
- Priority: JP2012-282192 20121226
- International Application: PCT/JP2013/084555 WO 20131225
- International Announcement: WO2014/104047 WO 20140703
- Main IPC: B21D35/00
- IPC: B21D35/00 ; B23K31/02 ; B21D22/20 ; B21D22/26 ; B21D24/16 ; B21D22/22

Abstract:
A draw bead is formed in a plate-shaped material in which a drawn portion is formed, outside the drawn portion, the draw bead being used to adjust an inflow of the plate-shaped material into a drawing die. The drawn portion is drawn in the plate-shaped material by using the draw bead as formed. The draw bead is crushed and flattened after the drawn portion is drawn.
Public/Granted literature
- US20150343514A1 DRAW FORMING METHOD Public/Granted day:2015-12-03
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