METHOD AND DEVICE FOR MODIFYING SURFACE OF WORK BY ELECTRON BEAM

WIPO Patent Application WO/2006/132421

A1

A method of modifying the surface of a work (12) by applying an electron beam from a cathode (8). First, a voltage pulse is applied to a solenoid (5) from a power source (16) to form a magnetic field in a space (S) between the cathode and the work. While the magnetic filed is being formed, an electron beam is applied to the work from the cathode, whereby ionizing gas in the space (S) is removed. When a voltage pulse is applied to a polarity-switched solenoid, a magnetic field reversed as seen from the cathode to the work is formed. While a reversed magnetic field is being formed, an additional electron beam is applied to the work from the cathode.

Matsumoto, Itaru c/o Sodick Electron Co. Ltd. (3601, Ikebe-cho, Tsuzuki-k, Yokohama-shi Kanagawa 53, 22400, JP)
Furukawa, Toshihiko c/o Sodick Co. Ltd. (12-1, Nakamachidai 3-chome, Tsuzuki-k, Yokohama-shi Kanagawa 22, 22485, JP)

PCT/JP2006/311883

December 14, 2006

June 07, 2006

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SODICK CO., LTD. (12-1, Nakamachidai 3-chome Tsuzuki-k, Yokohama-shi Kanagawa 22, 22485, JP)
Matsumoto, Itaru c/o Sodick Electron Co. Ltd. (3601, Ikebe-cho, Tsuzuki-k, Yokohama-shi Kanagawa 53, 22400, JP)
Furukawa, Toshihiko c/o Sodick Co. Ltd. (12-1, Nakamachidai 3-chome, Tsuzuki-k, Yokohama-shi Kanagawa 22, 22485, JP)

H05H1/24; G21K5/00; G21K5/04; H01J37/317; H05H1/24; G21K5/00; G21K5/04; H01J37/317

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