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1. WO2006121998 - ELECTROLYTIC MICROFINISHING OF METALLIC WORKPIECES

Publication Number WO/2006/121998
Publication Date 16.11.2006
International Application No. PCT/US2006/017666
International Filing Date 08.05.2006
Chapter 2 Demand Filed 01.12.2006
IPC
B23H 5/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
5Combined machining
CPC
B23H 3/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
3Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
B23H 5/08
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
5Combined machining
06Electrochemical machining combined with mechanical working, e.g. grinding or honing
08Electrolytic grinding
Applicants
  • BECKER, Manfred G. [US]/[US]
Inventors
  • BECKER, Manfred G.
Agents
  • VANOPHEM, Remy J.
Priority Data
11/382,01606.05.2006US
60/678,85406.05.2005US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ELECTROLYTIC MICROFINISHING OF METALLIC WORKPIECES
(FR) MICROFINISSAGE ELECTROLYTIQUE DE PIECES METALLIQUES
Abstract
(EN) The invention is an electrolytic microfinishing process which utillizes conductive tool as a cathode and conductive workpiece as an anode both connected to power supply. Electrolytic fluid is pumped between the tool and workpiece, creating a decomposition of the workpiece surface allowing the surface of the workpiece to be removed or wiped away by the interaction of the flowing electrolyte rotation of the tool without generating any heat at a rate significantly faster than any other known machining process. The tool has no contact with the workpiece and accordingly, requires very low clamping loads to hold the workpiece in the spindle during the finishing operation. Due to the low clamping loads, the distortion of the workpiece is completely eliminated. Modulating the power supply during the work cycle allows the use of a single tool for both roughing and finishing as a continuous cycle to significantly provide surface finishes previously unobtainable.
(FR) Procédé de microfinissage électrolytique qui repose sur l'utilisation d'un outil conducteur en tant que cathode et d'une pièce conductrice en tant qu'anode, ces deux pièces étant connectées à une alimentation électrique. Du fluide électrolytique est pompé entre l'outil et la pièce, ce qui crée une décomposition de la surface de la pièce permettant l'élimination ou l'évacuation de ladite surface par l'interaction de l'écoulement de l'électrolyte et de la rotation de l'outil sans production de chaleur, à une vitesse considérablement plus élevée que n'importe quel autre procédé d'usinage connu. L'outil ne se trouve pas en contact avec la pièce et par conséquent ne nécessite que des charges de serrage très faibles pour retenir la pièce dans la broche pendant l'opération de finissage. La distorsion de la pièce est complètement éliminée en raison des faibles charges de serrage. La modulation de l'alimentation électrique pendant le cycle de travail permet l'utilisation d'un seul outil à la fois pour le dégrossissage et le finissage en tant que cycle continu, pour produire des finitions de surfaces qu'il n'était pas possible d'obtenir précédemment.
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