Title:
POWER SUPPLY DEVICE FOR WIRE DISCHARGE PROCESSING
Document Type and Number:
WIPO Patent Application WO/2014/046149
Kind Code:
A1
Abstract:
In order to improve the surface roughness without sacrificing processing speed in the step prior to finishing, in the present invention, a power supply device for wire discharge processing includes: a first DC power supply (11); first switching elements (12, 18) provided between the first DC power supply and a processing gap (7); a second DC power supply (21); a second switching element (22) provided between the second DC power supply and the processing gap; and a pulse generator (40) for controlling the first switching element and the second switching element. The pulse generator is configured so that, in order to generate a discharge in the processing gap, the second switching element is switched on and the voltage of the second DC power supply is applied to the processing gap; the first switching element is switched on intermittently at a predetermined frequency in response to a discharge generation detection signal (St), and a series of current pulses is fed to the processing gap; and the feeding of the series of current pulses is discontinued when the current pulses do not reach a reference current (Ir).
More Like This:
Inventors:
YAMADA KUNIHARU (JP)
Application Number:
PCT/JP2013/075208
Publication Date:
March 27, 2014
Filing Date:
September 18, 2013
Export Citation:
Assignee:
SODICK CO LTD (JP)
International Classes:
B23H1/02
Foreign References:
| JPH11267926A | 1999-10-05 | |||
| JP4850318B1 | 2012-01-11 | |||
| JPH11347844A | 1999-12-21 |
Download PDF:
Previous Patent: DRUG FEEDER AND DRUG DISPENSING DEVICE
Next Patent: PHOTOCURABLE COMPOSITION AND METHOD OF MANUFACTURING FILM USING THE COMPOSITION
Next Patent: PHOTOCURABLE COMPOSITION AND METHOD OF MANUFACTURING FILM USING THE COMPOSITION