ELECTRODISCHARGE WIRE MACHINING AND POWER SUPPLY FOR ELECTRODISCHARGE WIRE MACHINING

WIPO Patent Application WO/2002/058874

A1

A power supply is provided for electrodischarge wire machining in which high-frequency AC voltage is applied between a wire electrode and a workpiece. A power supply device includes a high-frequency AC oscillator and amplifier circuit (4) and a pulse source (5) for applying high-frequency AC voltage intermittently between a wire electrode (1a) and a workpiece (2). In the electrodischarge wire machining using this power supply, the vibration of the wire electrode (1a) due to electrostatic force between the wire electrode (1a) and the workpiece (2) is suppressed, thus improving the straightness of the machined surface and reducing surface roughness.

JP2662681	[Title of Invention] Die-sinking electric discharge machine
JPS6161711	POWER SOURCE FOR ELECTRIC DISCHARGE MACHINING
JPH05192819	ELECTRIC DISCHARGE MACHINING DEVICE

NAKASHIMA TOSHIO (JP)
HATTORI KOUICHIROU (JP)
UKAI YOSHIKAZU (JP)
TANEDA ATSUSHI (JP)
GOTO AKIHIRO (JP)
HASHIMOTO TAKASHI (JP)

PCT/JP2001/000415

August 01, 2002

January 23, 2001

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MITSUBISHI ELECTRIC CORP (JP)
NAKASHIMA TOSHIO (JP)
HATTORI KOUICHIROU (JP)
UKAI YOSHIKAZU (JP)
TANEDA ATSUSHI (JP)
GOTO AKIHIRO (JP)
HASHIMOTO TAKASHI (JP)

B23H1/02; B23H7/00; B23H7/04; C01F11/18; C05D3/02; C09C1/02; (IPC1-7): B23H7/04; B23H7/00

JPS5615927A	1981-02-16
JPS53101195A	1978-09-04

Miyata, Kaneo c/o Mitsubishi Denki Kabushiki Kaisha 2-3 (Marunouchi 2-Chome Chiyoda-ku, Tokyo, JP)

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