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Variable Feedrate Interpolator for NURBS Curve Considering Material Removal Rate  

마르첸코티혼 (영남대학교 대학원 기계공학과)
고태조 (영남대학교 기계공학과)
김희술 (영남대학교 기계공학과)
김정현 (경일대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.12, no.2, 2003 , pp. 1-8 More about this Journal
Abstract
Conventionally used linear or circular interpolator is undesirable for the precision machining of 3D free-form surface as the following reason: the transmission errors due to the huge number of data, discontinuity of segmentation, unsmooth motion speed. To this regard, modern CNC machine tools are designed with the function of machining arbitrary parametric curves. However, these systems don't consider the adaptive federate, which dominates the quality of the machining process. This paper proposes a NURBS interpolator for the constant material removal rate. That is accomplished by the variable federate using curvature of curve. The curvature-compensated feederate system has important Potential applications in ensuring part accuracy and protecting cutting tool. The simulated result show it can be applicable to the real machining.
Keywords
CNC Machine Tools; NURBS Interpolator; Variable Feedrate; Material Removal Rate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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