发明名称 |
PRODUCTION METHOD FOR METAL DIES |
摘要 |
This invention is a method to make a forging die for needle. In this forging die making process two rectangular bodies are chamfered on one of each corner to form inclined surfaces. By combination of the two bodies a V-shape forging groove is formed. In this case, the surfaces adjacent to the chamferings are in contact with each other.
|
申请公布号 |
KR890001439(B1) |
申请公布日期 |
1989.05.03 |
申请号 |
KR19820004137 |
申请日期 |
1982.09.13 |
申请人 |
MATZDANI SEISAKUSIO CO.,LTD. |
发明人 |
MATZDANI, KANJI |
分类号 |
B23P13/00;(IPC1-7):B23P13/00 |
主分类号 |
B23P13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|