Application of PPR to Thermal Error Modeling of an INDEX-G200 Turning Center

Qian Jian Guo; Lei He; Guang Ming Zhu

doi:10.4028/www.scientific.net/AMR.189-193.4145

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Application of PPR to Thermal Error Modeling of an INDEX-G200 Turning Center
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Application of PPR to Thermal Error Modeling of an...

Application of PPR to Thermal Error Modeling of an INDEX-G200 Turning Center

Abstract:

Thermal errors are the major contributor to the dimensional errors of a workpiece in precision machining. Error compensation technique is a cost-effective way to reduce thermal errors. Accurate modeling of errors is a prerequisite of error compensation. In this paper, a thermal error model was proposed by using projection pursuit regression (PPR). The PPR method improves the prediction accuracy of thermal deformation in the CNC turning center.