Apparatus and method for finishing radial commutator

Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool

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51281SF, 511311, B24B 1900

Patent

active

045259577

ABSTRACT:
Grinding apparatus and a method for finishing face-type commutator are shown for producing a cycloidal like grinding pattern which has a controlled depth of surface roughness established by the grain size of abrasive grit and a pitch which is controlled by relative rotational speeds of the tool and the workpiece.

REFERENCES:
patent: 325296 (1885-09-01), Wetherbee
patent: 969633 (1910-09-01), Jordan
patent: 3965623 (1976-06-01), Grutza et al.

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