Wire electrical discharge machining apparatus
First Claim
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1. A wire elecrical discharge machining apparatus that machines a workpiece based on a high-frequency voltage applied in an inter-pole gap between a wire electrode and the workpiece, comprising:
- a direct current voltage applying unit that applies a direct current voltage in the inter-pole gap; and
a low frequency component detecting unit that detects a low frequency component from a voltage in the inter-pole gap.
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Abstract
A workpiece and a wire electrode are positioned near each other with a gap therebetween. A high-frequency voltage applying unit applies a high-frequency voltage and a direct current voltage applying unit applies a direct current voltage, to the workpiece and the wire electrode. A detecting unit detects a low frequency component of a voltage occurring in the gap as a result of the electrical disch
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Citations
4 Claims
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1. A wire elecrical discharge machining apparatus that machines a workpiece based on a high-frequency voltage applied in an inter-pole gap between a wire electrode and the workpiece, comprising:
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a direct current voltage applying unit that applies a direct current voltage in the inter-pole gap; and
a low frequency component detecting unit that detects a low frequency component from a voltage in the inter-pole gap. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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Original AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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InventorsGoto, Akihiro, Nakamura, Kazushi, Hattori, Kouichiro
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current219/69.120
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CPC Class CodesB23H 7/04 Apparatus for supplying cur...B23H 7/065 Electric circuits specially...
