Mitsubishi Denki Kabushiki Kaisha

Toshiaki Tanaka

Yoshio Ozaki

Atsushi Taneda

Jun Aramaki

Kazuhiko Uemoto

Morihisa Nishikawa

Masahiro Nakata

Kooji Akamatsu

An electric discharge machining apparatus having a shielding mechanism for prevention of an occurrence of radio interference due to electromagnetic waves which are generated during an electric discharge machining operation. The shielding mechanism comprises a plurality of shielding floats at least the surface of which are made of a magnetic material high in magnetic permeability. The floats covers a surface of a machining solution contained in a machining reservoir made of a magnetic material high in magnetic permeability, in such a manner that the shielding floats are in contact with a side wall of the machining reservoir.

EDM with an electromagnetic shield of hollow ferrite beads floating on

Electric discharge machining method and device

An electric spark machining apparatus includes a cooling device which is arranged so that machining liquid pumped up from a reservoir and fed to an electric spark machine is controlled in temperature to minimize a temperature difference between machining liquid entering into the electric spark machine and the latter.

Electric spark machining apparatus

Growing community of inventors

Aichi, Japan

Toshiaki Tanaka