Electroerosion boring apparatus
US5281788A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Dec 16, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H1/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electroerosion boring method and apparatus for machining a small hole in a workpiece at high speed using a supplemental working fluid flushing means for directing working fluid toward a peripheral edge of the inlet-side opening of the hole being machined, and a working fluid supply means for supplying the working fluid to the jet nozzle means under pressure so that the working fluid at a pressure of at least 20 kg/cm.sup.2 or more is directed from the supplemental flushing means. The supplemental high pressure flushing effectively prevents the machined chips from adhering to the peripheral edge of said hole without interfering with high-speed machining performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.