Electro chemical machining methods
US4468304A · kind A · utility
10Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1984 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Jan 24, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H9/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Workpieces which are electrochemically machined, are exposed to corrosion and stray attack by the electrolyte, over surfaces which are not required to be machined. The invention provides a cowl 22 around the workpiece 10 and its fixture 12, a space 24 being provided at the plane of the interface between parts to be machined and parts not to be machined. De-ionized water is pumped into the interior of cowl 22, at a pressure just sufficient to prevent electrolyte entering gap 24, thus protecting the necessary workpiece portions and the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.