发明名称 |
DEVICE FOR PRESS-FORMING A THIN SHEET AND PRESS-FORMING METHOD |
摘要 |
A press-forming device includes a punch and a die, as a mold to be measured, and a strain measurement means arranged within the mold and measuring a strain amount generated by press-forming. The strain measurement means is positioned at the press-direction side relative to a radius end of a die shoulder on the material flow-out side when the.mold is positioned at a lower dead point of press-forming. The strain measurement means is preferably positioned within a region defined by a surface which is away from the center of curvature of a curved surface of the mold by the distance ten times R, where R is a curvature radius of the curved surface.
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申请公布号 |
CA2686539(C) |
申请公布日期 |
2012.07.03 |
申请号 |
CA20082686539 |
申请日期 |
2008.05.09 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
KUWAYAMA, TAKUYA;SUZUKI, NORIYUKI |
分类号 |
B21D37/00;B21D24/00;B30B15/28 |
主分类号 |
B21D37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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