B - Operations – Transporting – 23 – H
Patent
B - Operations, Transporting
23
H
B23H 3/00 (2006.01) B23H 5/06 (2006.01) B23H 5/14 (2006.01) B23H 7/28 (2006.01)
Patent
CA 2088686
A method for electrochemical machining a workpiece (10) utilizing an electrolyte that is passivating to the workpiece (10), wherein the conductive tool (20) is provided with a non-conductive abrasive surface (24), and said tool (20) and workpiece (10) are brought together with a contacting relative motion so that said abrasive surface (24) will selectively abrade the workpiece (10) to remove any passivation layer therefrom in those areas to be machined and such that the unabraded surface areas will retain the passivation layer to prevent or retard electrochemical machining. A reciprocal component of the relative motion between the tool (20) and workpiece (10) pumps the electrolyte through the gap between the tool (20) and workpiece (10) and prevent it from becoming overheated:
Méthode servant à l'usinage électrochimique d'une pièce (10) et utilisant un électrolyte qui passive la pièce (10), l'outil conducteur (20) étant muni d'une surface abrasive non conductrice (24). Ledit outil (20) et ladite pièce (10) sont réunis par un mouvement relatif de mise en contact de façon que ladite surface abrasive (24) abrase sélectivement la pièce (10) pour éliminer toute couche de passivation sur les zones de la pièce devant être usinées; les zones de la surface non abrasées conservent la couche de passivation, ce qui permet d'éviter ou de retarder l'usinage électrochimique. La composante réciproque du mouvement relatif entre l'outil (20) et la pièce (10) pompe l'électrolyte à travers l'espace situé entre l'outil (20) et la pièce (10) et empêche la surchauffe de la pièce.
Sim & Mcburney
The Ex One Company
LandOfFree
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