Stamping apparatus for forming rod with configured ends
US7213436B2 · kind B2 · utility
4Cited by
25References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jul 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49664
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method comprises steps of providing bar stock, cutting the stock to form a rod-shaped blank, and stamp-forming a ball section on a first end of the blank in a transfer die. The method further includes stamp-forming an apertured flattened section on a second end of the blank to form a final product in the transfer die, and axially striking opposing ends to accurately form a length of the blank. A related transfer die apparatus includes stations for cutting and then stamp-forming a ball section on a first end of the blank, and stamp-forming an apertured flattened section on a second end of the blank to form a final product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.