Invention Grant
- Patent Title: Method for bending sheet metal and product of sheet metal
- Patent Title (中): 钣金和金属板产品的弯曲方法
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Application No.: US14002305Application Date: 2012-03-05
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Publication No.: US09539630B2Publication Date: 2017-01-10
- Inventor: Masaaki Mizumura , Koichi Sato , Satoshi Shirakami
- Applicant: Masaaki Mizumura , Koichi Sato , Satoshi Shirakami
- 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: JP2011-046254 20110303; JP2011-046581 20110303
- International Application: PCT/JP2012/055590 WO 20120305
- International Announcement: WO2012/118223 WO 20120907
- Main IPC: B21D5/02
- IPC: B21D5/02 ; B21D5/00 ; C21D7/10 ; C21D7/13 ; C21D1/09 ; C21D1/30 ; C21D1/32 ; B21D35/00
Abstract:
A method for bending a sheet metal comprises: a hardness adjustment process wherein a blank (10), including a high-hardness region (11) and a low-hardness region (12) having a lower hardness than the high hardness region (11), is formed by changing the hardness of at least a part of a sheet metal; and a bending process wherein a product (20) is formed by bending low-hardness region (12) of blank (10).
Public/Granted literature
- US20130333190A1 METHOD FOR BENDING SHEET METAL AND PRODUCT OF SHEET METAL Public/Granted day:2013-12-19
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