Invention Grant
- Patent Title: Springback amount evaluation method
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Application No.: US14418869Application Date: 2013-09-27
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Publication No.: US10169496B2Publication Date: 2019-01-01
- Inventor: Hirotaka Kano , Osamu Sonobe
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-238497 20121030
- International Application: PCT/JP2013/076402 WO 20130927
- International Announcement: WO2014/069136 WO 20140508
- Main IPC: G06F17/50
- IPC: G06F17/50 ; B21D22/00 ; B21J5/00 ; B21K7/12 ; G06F17/11

Abstract:
A springback amount evaluation method evaluates an amount of springback after die release of a press forming product by a computer and includes: setting a plurality of section planes intersecting a shape of the press forming product at predetermined intervals; obtaining a sectional shape of the press forming product for each of the set section planes; and obtaining an orientation of each of the sectional shapes in each section plane as a direction of the each of the sectional shapes, wherein for each of a shape to be a reference of the press forming product and a shape after the die release, the above-described three steps are performed, and the amount of springback is evaluated by comparing, for all of the section planes, the obtained directions of the sectional shapes for the shape to be the reference and for the shape after the die release.
Public/Granted literature
- US20150205892A1 SPRINGBACK AMOUNT EVALUATION METHOD Public/Granted day:2015-07-23
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