Electrical discharge machining method

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United States of America Patent

PATENT NO 9676046
SERIAL NO

14418899

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Abstract

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An electrical discharge machining method includes a step in which a pipe electrode is arranged such that the axis line of the pipe electrode faces the depth direction of the throughholes, the pipe electrode is moved relative to the workpiece, and a sloped section is formed; a step in which a straight section connected to the sloped section is formed; and a step in which the pipe electrode is arranged such that the axis line is vertical relative to the inside wall surface of the sloped section, the pipe electrode is moved relative to the workpiece, and the inside wall surface is machined.

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Patent Owner(s)

Patent OwnerAddress
MAKINO MILLING MACHINE CO LTDTOKYO 152-8578

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Kyoichi Aiko-gun, JP 5 39
Igi, Nobuaki Aiko-gun, JP 3 26

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