Method and apparatus for profile mirror surface grinding

Details Method and apparatus for profile mirror surface grinding Method and apparatus for profile mirror surface grinding

1999-02-26

2000-11-21

Scherbel, David A.

Abrading

Abrading process

With tool treating or forming

451 5, 451 36, 451 72, 451443, B24B 4900

Patent

active

061495042

ABSTRACT:
(A) Applying a voltage between an electrically conductive grindstone (1) and a shaping electrode (4) for shaping the grindstone, generating a spark on a contact point by contacting the shaping electrode to the grindstone, thereby shaping the grindstone by the spark, and (B) simultaneously applying a voltage between the grindstone and a dressing electrode (2) for dressing the grindstone that is oppositely aligned to the grindstone without contact, supplying the electrically conductive grinding fluid between them, thereby dressing the grindstone by electrolytic dressing. According to these steps, highly efficient and simultaneous processing is achieved to provide a high precision profiling high quality mirror.

REFERENCES:
patent: 5547414 (1996-08-01), Ohmori
patent: 5660579 (1997-08-01), Nakayama et al.
patent: 5683290 (1997-11-01), Kanda et al.
patent: 5868607 (1999-02-01), Enomoto et al.
patent: 5910040 (1999-06-01), Moriyasu et al.
Patent Abstracts of Japan, vol. 013, No. 025 (M-787), Jan. 20, 1989 & JP 63 237868 A (Hitachi Ltd.), Oct. 4, 1988.

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