Title:
WIRE ELECTRIC DISCHARGE PROCESSING MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/130272
Kind Code:
A1
Abstract:
Provided is a wire electric discharge processing machine which processes an object to be processed by means of discharge generated by a processing voltage applied between a wire electrode and the object to be processed, and which is provided with: an inter-electrode voltage detection unit that detects an inter-electrode voltage between the wire electrode and the object to be processed; a frequency extraction unit (1421) that extracts a vibrational frequency of the wire electrode on the basis of the detected value of the inter-electrode voltage; and a first gain processing unit (1423) which corrects a first gain to be used for proportional-integral control of a command value of the inter-electrode voltage so that the ratio of the difference between the detected value of the inter-electrode voltage and the command value of the inter-electrode voltage with respect to the feed speed of the wire electrode becomes higher as the vibrational frequency of the wire electrode becomes larger, and becomes lower as the vibrational frequency of the wire electrode becomes lesser.
Inventors:
NAKAGAWA TAKAYUKI (JP)
TAKADA TOMOAKI (JP)
TAKADA TOMOAKI (JP)
Application Number:
PCT/JP2016/051994
Publication Date:
August 03, 2017
Filing Date:
January 25, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B23H1/02; B23H1/00
Domestic Patent References:
| WO2011161764A1 | 2011-12-29 |
Foreign References:
| JPS637226A | 1988-01-13 | |||
| JPH11221718A | 1999-08-17 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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