| 发明名称 | Method for bending sheet metal and product of sheet metal | ||
| 摘要 | A method for bending a sheet metal comprises: a hardness adjustment process wherein a blank (10), including a high-hardness region (11) and a low-hardness region (12) having a lower hardness than the high hardness region (11), is formed by changing the hardness of at least a part of a sheet metal; and a bending process wherein a product (20) is formed by bending low-hardness region (12) of blank (10). | ||
| 申请公布号 | US9539630(B2) | 申请公布日期 | 2017.01.10 |
| 申请号 | US201214002305 | 申请日期 | 2012.03.05 |
| 申请人 | Nippon Steel & Sumitomo Metal Corporation | 发明人 | Mizumura Masaaki;Sato Koichi;Shirakami Satoshi |
| 分类号 | B21D5/02;B21D5/00;C21D7/10;C21D7/13;C21D1/09;C21D1/30;C21D1/32;B21D35/00 | 主分类号 | B21D5/02 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A method for bending a sheet metal, the method comprising: a hardness adjusting process for changing hardness of at least a part of the sheet metal so as to form a blank including a high-hardness region and a low-hardness region having a hardness lower than a hardness of the high-hardness region; and a bending process for bending an objective region to be processed, which includes the low-hardness region and the high-hardness region of the blank, so as to form a product, wherein the hardness adjusting process comprises forming the objective region to be processed in at least a part of the sheet metal, wherein one side of the sheet metal is formed as the low-hardness region and the other side of the sheet metal is formed as the high-hardness region. | ||
| 地址 | Tokyo JP | ||