An Iso-Scallop Numerical Control Tool Path Generation Method for Free-Form Surface Machining
The value of scallop height between the cutter points of adjacent rows of the iso-scallop numeri-cal control tool path is the maximum allowable value,which maximizes the line spacing of the tool paths and minimizes the total length of the tool path.In this study,a three-axis iso-scallop tool path generation method is proposed for free-form surfaces.Based on the local contour of the surface and the tool circle in the plane with the tool feed direction method,the iterative algorithm of iso-scallop points is constructed.The improved algorithm for the initial value of the next row of cutter point is proposed.By adapting the local surface where the discrete cutter intersects with the surface and iteratively calculating the minimum distance between the cutter points and the discrete points,the scallop height points of the next row with are ob-tained.Compared with the tool paths with equal spacing method,the number of rows and the total length of the tool paths with iso-scallop method generated by the proposed algorithm are significantly reduced,which verifies the feasibility and effectiveness of the proposed algorithm.
free-form surfaceiso-scallopnumerical control machiningtool path generation
NETL
NSTL
万方数据
维普
