Wire electrode spark erosion
US4490600A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Feb 4, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B5/028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Hardmetal lamina are cut, by a process known as electrical discharge machining, from a block of hardmetal using a wire electrode. The laminae so formed may then be attached by adhesive or epoxy resin to a suitable base in order to form a hard metal surfaced tool. Provision is made for preventing this hardmetal from shearing from its mounting, and also to remove any heat generated within the hardmetal. Reference is made especially to using the above construction for a `slipper` within a tile producing machine. The word `hardmetal` is used to denote powdered carbides of the transition metals, cemented into solid masses by a matrix of a metal of a lower melting point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.