Apparatus and method for discharge surface treatment
AssigneeMitsubushi Denki Kabushiki Kaisha
InventorsTooru Inoue, Akihiro Goto
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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.
Claims10
An apparatus for discharge surface treatment, comprising:
- a green compact electrode as a discharge electrode including a material of a coating formed on a surface of a workpiece by a discharge generated between the discharge electrode and the workpiece;
- a first power source configured to supply a first voltage;
- a voltage detector configured to detect a voltage between the workpiece and the discharge electrode;
- and
- a pulse current generator configured to generate and output a pulse current from the first voltage, and to cut off the output when a predetermined period of time has passed after the voltage detector detects the voltage to be less than a discharge detection voltage, wherein
- the pulse current output by the pulse current generator is supplied between the workpiece and the discharge electrode, and
- the discharge detection voltage is a value less than the first voltage by 5% to 20% of the first voltage.
Dependencies are inferred from the claim text.