| 发明名称 |
CUT-OFF END SURFACE IMPROVEMENT |
| 摘要 |
A method of improving the surface finish of a sheared end face of a cylindrical blank in a progressive forming machine comprising deforming the end face out of its original as sheared transverse plane into a first shape concentric with the axis of the blank that slightly departs from the original plane a distance that increases with proximity to the axis of the blank, thereafter deforming the end face from the first shape into a second shape in a direction opposite a direction the first shape was displaced from the original shear plane, the second shape slightly departing from a transverse plane a distance that increases with proximity to the axis of the blank. |
| 申请公布号 |
US2014196518(A1) |
申请公布日期 |
2014.07.17 |
| 申请号 |
US201313741557 |
申请日期 |
2013.01.15 |
| 申请人 |
NATIONAL MACHINERY LLC |
发明人 |
Carper Jeffrey W. |
| 分类号 |
B21F1/00 |
主分类号 |
B21F1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of improving the surface finish of a sheared end face of a cylindrical blank in a progressive forming machine comprising deforming the end face out of its original as sheared transverse plane into a first shape concentric with the axis of the blank that slightly departs from the original plane a distance that increases with proximity to the axis of the blank, thereafter deforming the end face from the first shape into a second shape in a direction opposite a direction the first shape was displaced from the original shear plane, the second shape slightly departing from a transverse plane a distance that increases with proximity to the axis of the blank. |
| 地址 |
Tiffin OH US |
