Abstract: This paper presents an
automatic programming system on PC, it has also solved the
technic problem in the combination of different curves or
surfaces. The UNRBS is applied to modeling and fitting
complicated curves and surfaces. The circular spline is combined
with the NURBS to determine the cutter path in accordance with
the features of the interpolation movement of NC machine tool.
Three methods have been developed to solve the overcutting
problems.
Key words:
Non uniform rational b-spline (NURBS) Circular spline Curves and surfaces fitting NC machining
Manuscript received on May
17, 1993
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