B - Operations – Transporting – 23 – H
Patent
B - Operations, Transporting
23
H
B23H 3/00 (2006.01) B23H 3/10 (2006.01) B23H 9/00 (2006.01) B23H 9/14 (2006.01)
Patent
CA 2661019
A machine for electrochemically polishing indentations within the wall of an aluminum workpiece, such as a wheel, has a cathode attached to an upper platen. The workpiece is mounted upon a lower platen which acts as an anode. Electrolyte is passed between the cathode and the anode while simultaneously a current is applied which passes through the cathode and the anode. The current is selectively pulsed to maximize polishing but at the same time to permit the flushing away of residual material and to cool the cathode and the workpiece.
La machine selon l'invention servant à polir électrochimiquement des indentations dans la paroi d'une pièce à usiner en aluminium, comme une roue, comporte une cathode fixée à un coulisseau supérieur. La pièce à usiner est montée sur un coulisseau inférieur qui sert d'anode. De l'électrolyte est injecté entre la cathode et l'anode, et un courant est appliqué simultanément à travers la cathode et l'anode. Le courant est impulsé sélectivement pour maximiser le polissage mais en même temps pour permettre l'évacuation de matériau résiduel et pour refroidir la cathode et la pièce à usiner.
Comaty Steven J.
Kissel Horst
Koroskenyi James
Extrude Hone Corporation
Smart & Biggar
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