ELECTRICAL DISCHARGE MACHINING DEVICE, ELECTRICAL DISCHARGE MACHINING METHOD, AND DESIGN METHOD
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 9, 2020
app pub date -
Sep 18, 2019
filing date -
Sep 18, 2019
priority date (Note) -
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Abstract
An electrical discharge machining device provided, using a floating capacitance to provide a machining target with improved surface roughness. An electrical discharge machining device 1 includes a current supply circuit 3 that supplies a current to a gap between an electrode 17 and a machining target 19 so as to provide electrical discharge machining. A floating capacitance portion 21 occurs between the electrode 17 and the machining target 19 in the electrical discharge machining. The floating capacitance portion 21 supplies its stored charge to the gap in the electrical discharge machining. A capacitor 11 stores a charge before the floating capacitance portion 21 is discharged. After the floating capacitance portion is discharged, the capacitor 11 charges the floating capacitance portion 21. The floating capacitance portion 21 is discharged again after it is charged. Such an operation generates a pulse current, thereby providing electrical discharge machining.
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