Electro-erosion machine tool and a pulse generator for use in such a machine tool
US4072842A · kind A · utility
8Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1976 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Jun 10, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H1/022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pulse generator for use in forming the erosion pulses of an electro-erosion machine tool comprises means for forming two envelope curve signals representing upper and lower limit levels for the instant level of the output pulse, a comparing device for comparing the actual current level of the output pulse with the envelope curve signals, and a current supply for forming the pulse under the control of a switch which is turned on and off by the comparing means in such a way as to maintain the output pulse current level in the region represented by the space between the envelope curves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.