Rough machining electroerosion method for machining a channel in a workpiece
US8471167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Mar 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H2400/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rough machining method for machining a channel in a workpiece includes the steps of: provide a power supply to energize one of a workpiece and an electrode as an anode and the other as a cathode; advance the electrode into the workpiece from a first start point to travel a first toolpath, so as to generate a first annular groove with a first core connecting with the workpiece; advance the electrode into the workpiece from a second start point to travel a second toolpath, so as to generate a second annular groove with a second core connecting with the workpiece, wherein the second annular groove intersects with the first annular groove and the first and the second cores are at least partially broken and disconnected with the workpiece upon intersecting of the first and the second annular grooves; and circulating a cutting fluid cross a working gap between a working face of the electrode and the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.