Method for under-sizing electrodes for polygonal orbit electric discharge machining
AssigneeSiemens Product Lifecycle Management Software Inc.
InventorEdwin Gasparraj
Life of this patent
Estimating the term…
Abstract
A system, method, and computer program for designing an electrode for electric discharge machining, comprising identifying a cavity in a three-dimensional design; calculating a direct negative boolean of said cavity to define a general form for an electrode; determining an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design; subtracting a plurality of instances from said general form for said electrode whereby an orbit gap is removed from said general form electrode; and applying a constant face offset to said general form for said electrode having said orbit gap and appropriate means and computer-readable instructions.
Claims17
A computer implemented method for designing an electrode for electric discharge machining, the method comprising:
- identifying a cavity in a three-dimensional design;
- calculating a direct negative boolean of said cavity to define a general form for an electrode;
- determining an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design;
- subtracting a plurality of instances from said general form for said electrode whereby an orbit gap is removed from said general form electrode;
- and
- applying a constant face offset to said general form for said electrode having said orbit gap.
A computer-program product tangibly embodied in a machine readable medium to perform a method for designing an electrode for electric discharge machining, comprising:
- instructions for identifying a cavity in a three-dimensional design;
- instructions for calculating a direct negative boolean of said cavity to define a general form for an electrode;
- instructions for determining an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design;
- instructions for subtracting a plurality of instances from said general form for said electrode whereby an orbit gap is removed from said general form for said electrode;
- and
- instructions for applying a constant face offset to said general form for said electrode having said orbit gap.
An electrode for eroding an electronically conductive workpiece to form a cavity by die-sinking, wherein a software application:
- (a) identifies a design cavity in a three-dimensional design;
- (b) calculates a direct negative boolean of said design cavity to define a general form for said electrode;
- (c) determines an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design;
- (d) removes an orbit gap from said general form for said electrode by subtracting a plurality of instances from said general form;
- and
- (e) applies a constant face offset from said general form for said electrode.
A molded part formed by a core and a cavity wherein said core and said cavity are milled by at least electric discharge machining having an electrode designed by a software application, wherein said software application:
- (a) identifies a design cavity in a three-dimensional design;
- (b) calculates a direct negative boolean of said design cavity to define a general form for said electrode;
- (c) determines an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design;
- (d) removes an orbit gap from said general form for said electrode by subtracting a plurality of instances from said general form;
- and
- (e) applies a constant face offset from said general form for said electrode.
A data processing system having at least a processor and accessible memory, comprising:
- means for identifying a cavity in a three-dimensional design;
- means for calculating a direct negative boolean of said cavity to define a general form for an electrode;
- means for determining an orbit path for said electrode, wherein said orbit path has a plurality of vertices corresponding to a plurality of instances with said three-dimensional design;
- means for subtracting a plurality of instances from said general form for said electrode by boolean subtraction whereby an orbit gap is removed from said general form electrode;
- and
- means for applying a constant face offset to said general form for said electrode having said orbit gap.
Dependencies are inferred from the claim text.