Title:
WIRE ELECTRICAL DISCHARGE MACHINE, THRESHOLD VALUE DETERMINATION DEVICE, AND THRESHOLD VALUE DETERMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/144987
Kind Code:
A1
Abstract:
Provided is a wire electrical discharge machine (10) which, when a voltage (V) between a wire electrode (18) and a workpiece (W) is lower than a threshold value (VTH), determines that the wire electrode (18) and the workpiece (W) have come into contact with each other. The wire electrical discharge machine (10) comprises: an acquisition unit (34) that acquires a set value (44) for a factor that fluctuates the voltage (V) between the wire electrode (18) and the workpiece (W); and a threshold value determination unit (36) that calculates the threshold value (VTH), on the basis of a reference value (32) of the factor and the acquired set value (44).
Inventors:
MASHIKO KOUTAROU (JP)
Application Number:
PCT/JP2022/003269
Publication Date:
August 03, 2023
Filing Date:
January 28, 2022
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
B23H7/02
Foreign References:
| JPS4980694A | 1974-08-03 | |||
| JPS5993227A | 1984-05-29 | |||
| JPH04122523A | 1992-04-23 |
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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