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Patent Searching and Data


Title:
METHOD AND DEVICE FOR DISCHARGE SURFACE TREATMENT
Document Type and Number:
WIPO Patent Application WO/2000/050194
Kind Code:
A1
Abstract:
A method and a device for discharge surface treatment, wherein a sintered electrode (12), obtained by mixing iron group metal powder or non-iron group metal powder having the same component as that of a work (2) singly or in combination into powder manufactured by combining metal carbides belonging to IVa, Va and VIa groups in the periodic table singly or in combination, compression-molding the mixture and presintering the molded mixture, is used as a discharge machining electrode, a switching means is provided which is adapted to switch, according to the characteristics of a material to be treated, between an electric condition under which the base material of the work (2) is directly discharge-surface-treated and another electric condition under which a hard formed coating (13) is discharge-surface-treated, and discharging is performed continuously between the sintered electrode (12) and the work (2) to continuously keep hard coatings (13) deposited on the surface of the work (2) using the discharge energy, thereby forming a thick film.

Inventors:
Mohri, Naotake (Tounoyama-jyuutaku 101 1-50-3, Cyuuou Nakano-ku, Tokyo, 164-0011, JP)
Yoshida, Manabu (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
Goto, Akihiro (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
Application Number:
PCT/JP1999/000822
Publication Date:
August 31, 2000
Filing Date:
February 24, 1999
Export Citation:
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Assignee:
MITSUBISHI DENKI KABUSHIKI KAISHA (2-3 Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
Mohri, Naotake (Tounoyama-jyuutaku 101 1-50-3, Cyuuou Nakano-ku, Tokyo, 164-0011, JP)
Yoshida, Manabu (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
Goto, Akihiro (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
International Classes:
B23H9/00; C23C24/08; C23C24/10; C23C26/00; C23C26/02; (IPC1-7): B23H9/00; C23C26/00
Foreign References:
JPH08300227A1996-11-19
JPH06246542A1994-09-06
JPH10512A1998-01-06
JPH05261624A1993-10-12
JPS5542708A1980-03-26
Attorney, Agent or Firm:
Miyata, Kaneo (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo, 100-8310, JP)
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