| 摘要 |
Machining apparatus working with electric discharge, in which inaccuracies in the machining as a consequence of temperature changes between the dielectric fluid and the machining device of the machining apparatus after the start of the machining operations are removed. An ambient-temperature sensor (21) records the temperature of the ambient air and a fluid-temperature sensor (22) records the temperature of the dielectric fluid. As a function of the initial values from these sensors and in accordance with the expected operating temperature of the machining device during the machining operations, the dielectric fluid is preheated in such a way that T1 < T<0> + DELTA T, where T<0> is the ambient temperature, T1 is the initial temperature of the dielectric fluid and DELTA T is the temperature rise of the dielectric fluid. <IMAGE>
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