| 摘要 |
PCT No. PCT/JP93/00972 Sec. 371 Date Mar. 2, 1994 Sec. 102(e) Date Mar. 2, 1994 PCT Filed Jul. 13, 1993 PCT Pub. No. WO94/02277 PCT Pub. Date Feb. 3, 1994A wire temperature measuring method for a wire electric discharge machine by which temperature and temperature distribution of a wire can be accurately measured during electric discharge machining. After a machining voltage is cut off, a loop current flows. Based on the loop current and a voltage between electrodes measured by a differential amplifier, a resistance between the electrodes is obtained, and the temperature of a wire is obtained based on the resistance. Accordingly, the wire temperature during actual machining operation can be measured with accuracy.
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