Method of and apparatus for forming tooth profile
US7146838B1 · kind B1 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21K1/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A punch fixed to a body assembly is inserted into a hole in a workpiece, and the workpiece is pressed by an upper die to press a splining segment of the punch into the hole in the workpiece, thereby forming spline slots in the inner circumferential surface of the hole in the workpiece. After the spline slots have been formed, the lower surface of the workpiece around the hole is held on a second lower die, and the upper surface of an outer circumferential edge portion of the workpiece is pressed by the upper die to cause the hole in the workpiece to have desired dimensional accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.