An Accuracy-Prediction Model Taking Tool Deformation and Geometric Machine-Tool Error into Consideration
Hirohisa Narita*1, Keiichi Shirase*2, Eiji Arai*3, and Hideo Fujimoto*4
*1School of Health Sciences, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
*2Department of Mechanical Engineering, Kobe University, 1-1, Rokko-dai, Nada-ku, Kobe 657-8501, Japan
*3Department of Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan
*4Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan
Test cutting used to verify cutting conditions and machining accuracy after a numeric control (NC) program is written for end milling the mold and die indispensable to manufacturing is generally effective, because it is based on trial and error. The virtual machining simulator we designed to verify machining accuracy uses an accuracy-prediction model and an error prediction expression for workpieces, integrating machine-tool deformation and geometric error models. We also propose calculation for copying errors to a workpiece.
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