Wire electrical discharge machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11135668
APP PUB NO 20180056421A1
SERIAL NO

15689432

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Abstract

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A wire electrical discharge machine includes a first voltage applying circuit, a second voltage applying circuit, and a switch controller. The first voltage applying circuit includes a first DC power source for applying a positive polarity voltage across an electrode gap, and a first switch for on/off-switching of application of the positive polarity voltage. The second voltage applying circuit includes a second DC power source for applying a reverse polarity voltage to the electrode gap, and a second switch for on/off-switching of application of the reverse polarity voltage. The switch controller controls the first switch and the second switch so that the first switch and the second switch are not turned on simultaneously. The first DC power source and the second DC power source are set up so that the absolute value of the reverse polarity voltage is lower than the absolute value of the positive polarity voltage.

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Patent Owner(s)

Patent OwnerAddress
FANUC CORPORATION3580 SHIBOKUSA AZA-KOMANBA OSHINO-MURA MINAMITSURU-GUN YAMANASHI 4010597 ?4010597

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuta, Tomoyuki Yamanashi-ken, JP 30 81
Matsunaga, Tomoaki Yamanashi-ken, JP 9 19

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