基本信息:
- 专利标题： 三维中空无毛边冷锻成型方法
- 专利标题（英）：Method for moulding three dimension hollow workpieces without rags by cold forging
- 申请号：CN96119996.2 申请日：1996-09-28
- 公开(公告)号：CN1178142A 公开(公告)日：1998-04-08
- 发明人： 曾绍谦
- 申请人： 曾绍谦
- 申请人地址： 台湾省桃园县杨梅镇水美里杨新路二段一三○号
- 专利权人： 曾绍谦
- 当前专利权人： 曾绍谦
- 当前专利权人地址： 台湾省桃园县杨梅镇水美里杨新路二段一三○号
- 代理机构： 北京奥瑞专利事务所
- 代理人： 朱黎光
- 主分类号： B21D22/10
- IPC分类号： B21D22/10 ; B21D51/12
A 3-D non-burr hollow cold forge technology for precise seamless non-burr products mainly uses a pair of parting moulds, mould-protecting body made of PET or PVC, hollow mould core in needed shape tobe forged, strong rubber strip, freezing liquid medium and forging head. The mould-protecting body is put in merged moulds. Tubular blank is loaded in hollow mould core, and strong rubber strip is put in the blank. The freezing liquid medium is poured into gap between mould-protecting body and hollow mould core. After rapidly freezing, strong rubber strip is forged by forging head to squeeze the blank into needed shape. Then the elastic restoration force of strong rubber strip heats the freezing medium, which takes the finished product out easily.
公开/授权文献:
- CN1048928C 三维中空无毛边冷锻成型方法 公开/授权日：2000-02-02
IPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21D | 金属板或管、棒或型材的基本无切削加工或处理；冲压 |
| ------B21D22/00 | 用冲压、旋压或拉深的无切削成型 |
| --------B21D22/10 | .用挠性或弹性衬垫的冲压 |