Rotary cutting die and method for its production
US3952179A · kind A · utility
11Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1975 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Feb 6, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26F2001/4472
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved rotary cutting die and method of producing it are disclosed wherein a cylindrical die blank or support has a weld bead applied on its peripheral surface in a configuration corresponding to the design of the product to be formed. The weld bead is then ground to provide a working surface spaced a predetermined distance radially above the die blank surface whereupon the weld bead is electrical discharge machined to form the required cutting edges coincident with said working surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.