Electric discharge machine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12145210
APP PUB NO 20220063008A1
SERIAL NO

17338675

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric discharge machine includes a DC power supply, a main switching element, a polarity switching circuit, a pulse generator, a detector, and a discharge controller. The DC power supply supplies a current to a machining gap. The pulse generator switches the main switching element and one of a positive switching element and a reverse switching element of the polarity switching circuit at a predetermined switching frequency. The detector detects an interpolar voltage in the machining gap. The discharge controller includes a storage that stores a coefficient indicating a removal quantity per discharge count for each operation pattern, and a calculator that calculates the discharge count from the interpolar voltage and estimates the removal quantity from the discharge count and the coefficient according to the operation patterns.

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Patent Owner(s)

Patent OwnerAddress
SODICK CO LTDKANAGAWA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Yoshiki Kanagawa, JP 27 195
Hanawa, Tomohito Kanagawa, JP 2 0
Yamada, Kuniharu Kanagawa, JP 10 23

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