Abstract: A surface treating method uses an electric discharge machining to form a coating layer having strong adhesion and excellent characteristics on a metal surface such as a hard metal. A discharge electrode is formed by powders containing metal hydride. Electric discharge is generated in a working fluid containing carbon between the discharge electrode and a workpiece. Thus, a coating layer of the metal hydride is formed on a surface of the workpiece.
Type:
Grant
Filed:
January 15, 1997
Date of Patent:
January 12, 1999
Assignees:
Japan Science and Technology Corporation, Nagao Saito, Naotake Mouri, Mitsubishi Denki Kabushiki Kaisha
Abstract: The invention permits determination of the position and/or the configuration of an object by impinging a laser light beam onto the object in a light scattering medium, and detecting the trace of a scattered light beam, by cameras.
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