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Patent Searching and Data


Title:
METHOD AND DEVICE FOR ELECTRIC DISCHARGE SURFACE TREATMENT
Document Type and Number:
WIPO Patent Application WO/2001/036710
Kind Code:
A1
Abstract:
An electrode (9) for electric discharge surface treatment and an object (2) to be machined are relatively moved, and discharge energy is supplied between the electrode (9) and the object (2) so as to form a hard anodic oxidation coating (8) on the surface of the object (2). A pressing tool (19) whose tip has a predetermined hardness is applied at a predetermined pressure to the hard anodic oxidation coating (8) and moved relatively on the coating (8). Thus, the residual tensile stress of the coating (8) is removed or relaxed, and the roughness of the surface of the coating (8) is smaller.

Inventors:
SEKIGUCHI HISAYOSHI (JP)
GOTO AKIHIRO (JP)
SAITO NAGAO (JP)
Application Number:
PCT/JP1999/006348
Publication Date:
May 25, 2001
Filing Date:
November 15, 1999
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
SEKIGUCHI HISAYOSHI (JP)
GOTO AKIHIRO (JP)
SAITO NAGAO (JP)
International Classes:
C23C26/00; (IPC1-7): C23C26/00
Foreign References:
JPS49107932A1974-10-14
JPH0770761A1995-03-14
JPH09192937A1997-07-29
Attorney, Agent or Firm:
Miyata, Kaneo (Marunouchi 2-chome Chiyoda-ku Tokyo, JP)
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