Wire electric discharge machine

Details Wire electric discharge machine Wire electric discharge machine

2007-05-25

2008-12-16

Evans, Geoffrey S (Department: 3742)

Electric heating

Metal heating

Cutting or disintegrating

C219S069140

Reexamination Certificate

active

07465899

ABSTRACT:
A wire electric discharge machine capable of maintaining machining-fluid temperature in a machining tank uniformly, even when the state of machining changes, for example between rough machining and finish machining. A first temperature sensor for detecting the machining-fluid temperature in a clean-fluid tank is provided to the clean-fluid tank or a machining-fluid cooling device. A second temperature sensor for detecting the machining-fluid temperature in the machining tank is provided. On the basis of machining conditions, etc., a controller of the wire electric discharge machine selects the second temperature sensor in machining producing much heat such as rough machining, and selects the first temperature sensor in machining producing little heat such as finish machining. The machining-fluid cooling device performs cooling control on the machining fluid in the clean-fluid tank based on the temperature detected by the selected temperature sensor.

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patent: 08-174339 (1996-07-01), None
patent: 9-57541 (1997-03-01), None

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