发明名称 METHOD FOR PRODUCING CURVED ARTICLE AND SKELETON STRUCTURE MEMBER FOR AUTOMOBILE BODY SHELL.
摘要 <p>The present invention produces a curved article (10) having a hat-shaped cross section by means of press molding without generating cracks or wrinkles. When producing by means of press molding a curved article (10) having a roughly hat-shaped cross section comprising a top plate (11), vertical walls (12a, 12b) extending in parallel to each other along the ridge line (14a, 14b) of the top plate, and outward-facing flanges (13a, 13b) joined to the tips of the vertical walls, a starting material metal plate (601) is sandwiched and bound by a die (502) and a blank holder (505) and press molded while the starting material metal plate (601) is sandwiched and bound by a pad (503) and a punch (504).</p>
申请公布号 MX2015002525(A) 申请公布日期 2015.06.23
申请号 MX20150002525 申请日期 2013.09.05
申请人 NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 TOSHIMITSU ASO;YASUHARU TANAKA;TAKASHI MIYAGI;MISAO OGAWA;KAZUYUKI KAWANO
分类号 B21D22/26;B21D5/01;B21D24/08 主分类号 B21D22/26
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