| 发明名称 |
HOLLOW DRIVE SHAFT WITH FLANGE AND METHOD FOR THE PRODUCTION THEREOF |
| 摘要 |
A method for producing a tubular, hollow drive shaft, in particular a cardan shaft, from a pre-tube, in particular a longitudinally welded, normalized steel tube, which is extended by having the wall thickness thereof reduced at least sectionally by way of single or multiple ironing or another cold forming operation and/or by having the inner diameter and/or outer diameter thereof changed, wherein at least one pre-tube end or shaft end is configured into a flange that is integrated in one piece by to way of cold forming. |
| 申请公布号 |
US2016001351(A1) |
申请公布日期 |
2016.01.07 |
| 申请号 |
US201214379792 |
申请日期 |
2012.02.27 |
| 申请人 |
GUNTHER Friedhelm;DIRSCHERL Ralf;SCHMIDT Marco |
发明人 |
GUNTHER Friedhelm;DIRSCHERL Ralf;SCHMIDT Marco |
| 分类号 |
B21K1/06;B21D53/84;B21C1/24;B21D19/04;F16C3/02;B21C1/18 |
主分类号 |
B21K1/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for producing a tubular, hollow drive shaft (1), which is a cardan shaft, from a pre-tube (10), which is a longitudinally welded, normalized steel tube, and which is extended by having the wall thickness thereof reduced at least sectionally by way of single or multiple ironing or another cold forming operation or by having the inner diameter or outer diameter thereof changed, characterized in that at least one pre-tube end (30) or shaft end is configured into a flange (2) that is integrated in one piece by way of cold forming. |
| 地址 |
Dortmund DE |
