WIRE ELECTRICAL DISCHARGE MACHINE AND WIRE ELECTRICAL DISCHARGE MACHINING METHOD

WIRE ELECTRICAL DISCHARGE MACHINE AND WIRE ELECTRICAL DISCHARGE MACHINING METHOD

A wire electrical discharge machine (10) includes: a pulse detection unit (60) configured to detect voltage pulses repeatedly applied between a workpiece (W) and a wire electrode (12); an instability calculation unit (66) configured to calculate the degree of instability indicating how unstable the...

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Bibliographische Detailangaben
1. Verfasser: CHU, Fuchen
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Zusammenfassung:A wire electrical discharge machine (10) includes: a pulse detection unit (60) configured to detect voltage pulses repeatedly applied between a workpiece (W) and a wire electrode (12); an instability calculation unit (66) configured to calculate the degree of instability indicating how unstable the discharge state is, by using the number of non-discharge pulses that present no voltage drop due to electrical discharge, among the pulses detected per unit time by a pulse detection unit (60); and a machining condition changing unit (68) configured to change a machining condition for the workpiece (W), based on the calculated degree of instability.