发明名称 FORMED MATERIAL MANUFACTURING METHOD AND FORMED MATERIAL
摘要 A formed material is manufactured by performing forming including at least one drawing-out process and at least one drawing process performed after the drawing-out process. A punch 31 used in the drawing-out process is formed to be wider on a rear end side than on a tip end side. By pushing a raw material metal plate into a pushing hole 30a together with the punch 31, ironing is performed on a region of the raw material metal plate corresponding to a flange portion.
申请公布号 US2016207085(A1) 申请公布日期 2016.07.21
申请号 US201414769669 申请日期 2014.05.14
申请人 NISSHIN STEEL CO., LTD. 发明人 NAKAMURA Naofumi;YAMAMOTO Yudai;KUROBE Jun
分类号 B21C1/22 主分类号 B21C1/22
代理机构 代理人
主权项
地址 Tokyo JP