Electric discharge surface treating method and apparatus

Details Electric discharge surface treating method and apparatus Electric discharge surface treating method and apparatus

1998-06-02

2000-07-11

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

148537, 148238, 427580, 427530, C23C 410, C23C 400, C23C 824, C23C 826

Patent

active

060866845

ABSTRACT:
A surface treating is performed by an electric discharge. The electric discharge is generated by applying a voltage between an electrode and a metal workpiece. The electrode is a solid or green compact electrode or the like which is made of a reforming material. The workpiece may be an end mill or the like. Then, a coating layer is formed on a surface of the metal workpiece. Thereafter, a nitriding treatment is performed on the coating layer in a nitriding vessel or the like. Thus, a hard coating layer of better quality is formed on the surface of the workpiece whether a material of the workpiece is steel or hard metal.

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