Trajectory Interpolation in CNC Grinding of Indexable Inserts

Xin Cheng Tian; Xiao Hong Deng

doi:10.4028/www.scientific.net/AMR.97-101.2007

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Trajectory Interpolation in CNC Grinding of Indexable Inserts

Abstract:

Most of the commenly adotped interpolation algorithems are for the curve machining on CNC machine tools with Cartesian coordinates configuration. For a CNC machine tool with non-Cartesian configuration, new trajectory interpolation algorithem must be developed to machine complex part sueface. Based on the analysis of the geometric characteristics and the CNC grinding principle of indexable inserts, this paper proposes two interpolation algorithems to grind the nose surface of indexable inserts with constant or variable back angle. The algorithm precision analysis is also made in this paper.