Importance

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Abstract

The disclosure provides an electric discharge machining apparatus. The apparatus includes: temperature sensors respectively attached to an upper portion, a middle portion, and a lower portion of the electric discharge machining apparatus and measuring temperatures of the electric discharge machining apparatus at predetermined time intervals; a control device calculating values of temperature environment diagnostic indexes, which are indexes for determining machining accuracy of the workpiece obtained when electric discharge machining is performed in a current temperature environment, from measurement results of the temperature sensors, comparing the values of the temperature environment diagnostic indexes with reference values of the temperature environment diagnostic indexes recommended for achieving desired machining accuracy, and outputting determination results indicating a degree of whether the current temperature environment around the electric discharge machining apparatus is appropriate for achieving the desired machining accuracy according to differences; and a storage part storing the reference values and the determination results.

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First Claim