System and Method for Determining Feedrates of Machining Tools
AssigneeMitsubishi Electric Research Laboratiories, Inc.
InventorsHuseyin Erdim, Alan Sullivan
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Abstract
A method determines a feedrate of a tool machining a workpiece according to a path. The method partitions the path into a set of segments, such that within each segment a function of engagement of the tool and the workpiece is substantially constant. Next, the method determines a feedrate for each segment in the set.
Claims15
A method for determining a feedrate of a tool machining a workpiece according to a path, comprising:
- partitioning the path into a set of segments, such that within each segment a function of engagement of the tool and the workpiece is substantially constant;
- and
- determining a feedrate for each segment in the set, wherein the steps of the method are performed by a processor.
A simulation system for determining a feedrate of a tool during a simulation of a machining of the workpiece by a motion of the tool according to a path, wherein the workpiece is represented by a model of the workpiece including an object distance field defining a surface of the workpiece, the tool is represented by a model of the tool including a tool distance field defining a surface of the tool, and the motion is represented by at least one swept volume including a swept volume distance field defining a surface of the swept volume, the path is represented by a parametric function, comprising a processor for:
- determining a function of engagement of the tool intersecting the workpiece at an instant of the simulation based on distance values between a set of points arranged on the surface of the tool and a surface of an in-process workpiece defined by the object distance field modified by the swept volume distance field at the instant of the simulation to produce a variation of the function of engagement,
- partitioning the path into a set of segments according to the variation of the function of engagement, such that, within each segment, the variation of the function of engagement is within a predetermined range;
- and for
- determining a feedrate for each segment in the set.
Dependencies are inferred from the claim text.