Invention Grant
- Patent Title: Method and apparatus for producing pressed component
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Application No.: US16313451Application Date: 2017-06-26
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Publication No.: US11135633B2Publication Date: 2021-10-05
- Inventor: Yasuharu Tanaka , Toshimitsu Aso , Takashi Miyagi , Misao Ogawa , Shinobu Yamamoto , Keita Ikegami
- 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: JPJP2016-126247 20160627
- International Application: PCT/JP2017/023450 WO 20170626
- International Announcement: WO2018/003755 WO 20180104
- Main IPC: B21D22/26
- IPC: B21D22/26 ; B21D24/04 ; B21D24/12 ; B21D22/20 ; B21D5/00 ; B21D5/04 ; B21D5/06 ; B21D25/04

Abstract:
A method or apparatus to produce an L-shaped pressed component includes, where a portion of a blank, having tensile strength of 1180 MPa or more, is held in a state of being clamped by a blank holder and a die, and a portion of the blank, to be formed into a top plate is held in a state of being clamped by a pad and a punch; the second step where a vertical wall, a concave ridge and a flange on the inner side of a curved portion are formed by, bend forming with a bending die, forming one, two or more material inflow promoting portion; and the third step where the die is moved in a direction toward a side where the blank holder is disposed to form a vertical wall, a concave ridge, and a flange on the outer side of the curved portion by draw forming.
Public/Granted literature
- US20190160510A1 METHOD AND APPARATUS FOR PRODUCING PRESSED COMPONENT Public/Granted day:2019-05-30
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