Zig-Zag Tool Path Generation for Sculptured Surface Finishing
نویسندگان
چکیده
Sculptured surfaces are relatively difficult to machine due to their complex geometry. Sculptured surface machining primarily has two stages, the first being roughing and the other being finishing. The current work focuses on generating tool paths for the finishing operation. Given any arbitrary sculptured surface, G&M machine codes have been generated to machine that surface using ball-end milling cutters on a 3-axis CNC machine. Tool path planning has been done on the offset surface. Iso-planar zig-zag toolpaths, due to their robustness and simplicity, have been generated. The generated tool paths comply to a certain tolerance and surface finish specified on the surface. Tool holder collision detection has been done to help select the appropriate tool. The input is a solid model of the surface in .SAT format while the output is a text file containing the machine code. Examples are presented to validate the algorithm.
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