Contact-discharge truing/dressing method and device therefor

Details Contact-discharge truing/dressing method and device therefor Contact-discharge truing/dressing method and device therefor

2005-09-06

2005-09-06

Valentine, Donald R. (Department: 1742)

Electrolysis: processes, compositions used therein, and methods

Electrolytic erosion of a workpiece for shape or surface...

Simple alternating current

C204S215000, C204S217000, C205S663000

Reexamination Certificate

active

06939457

ABSTRACT:
A contact-discharge truing/dressing method and a device therefor, capable of very simply conducting truing/dressing of a superabrasive grindstone, especially a superabrasive grindstone having a metal binder. The contact-discharge truing/dressing method brings a rotated conductive grindstone into contact with a pair of electrodes to which a DC voltage or pulse voltage is applied, and subjecting the conductive grindstone to an intermittent truing/dressing by contact discharge produced when opening/closing a circuit of a positive electrode, electrode chips, a grindstone binder, electrode chips, a negative electrode, and parts of the side surfaces of dual-ring rotary electrodes insulated by an insulation layer being used as a pair of electrodes.

REFERENCES:
patent: 4849599 (1989-07-01), Kuromatsu
patent: 5108561 (1992-04-01), Kuromatsu
patent: 5194126 (1993-03-01), Packalin
patent: 6162348 (2000-12-01), Ohmori
patent: 78256/1990 (1990-06-01), None
patent: 3-142164 (1991-06-01), None
patent: 4-360765 (1992-12-01), None

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