US PATENT SUBCLASS 205 / 649
.~.~ Eroding workpiece to match nonplanar surface shape of tool electrode


Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

640  DF  ELECTROLYTIC EROSION OF A WORKPIECE FOR SHAPE OR SURFACE CHANGE (E.G., ETCHING, POLISHING, ETC.) (PROCESS AND ELECTROLYTE COMPOSITION) {19}
646  DF  .~ With programmed, cyclic, or time responsive control {5}
649.~.~ Eroding workpiece to match nonplanar surface shape of tool electrode


DEFINITION

Classification: 205/649

Eroding workpiece to match nonplanar surface shape of tool electrode:

(under subclass 646) Process in which the workpiece is eroded to match the surface shape of a tool electrode having a nonplanar machining surface (e.g., a tool electrode having a concave surface is used to erode a workpiece until it possesses a convex shape with the same radius of curvature as that of the tool surface, etc.).