Apparatus and method for discharge surface treatment

Details Apparatus and method for discharge surface treatment Apparatus and method for discharge surface treatment

2008-01-29

2008-01-29

Koch, George (Department: 1734)

Coating processes

Measuring, testing, or indicating

C427S530000, C427S540000, C427S580000, C118S638000, C118S620000, C323S208000, C323S209000, C320S166000, C320S167000, C219S069160

Reexamination Certificate

active

07323213

ABSTRACT:
An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a voltage between the workpiece and the electrode, and a pulse current generator for generating and outputting a pulse current from the first voltage, and for cutting off the output when a predetermined period of time has passed after the voltage is detected to be less than a detection voltage. The pulse current is supplied between the workpiece and the electrode, and the detection voltage is less than the first voltage by 5% to 20% of the first voltage.

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Official Action, German Patent and Trademark Office, no date (unknown).

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