Off-line optimization on NC machining based on virtual machining |
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Authors: | J. G. Li H. Zhao Y. X. Yao C. Q. Liu |
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Affiliation: | 1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China
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Abstract: | Virtual machining, based-on the model of a machining system, aims to simulate, evaluate and optimize the actual machining process with high sense of reality. It provides digital off-line optimization tools for NC machining. Taking advantage of virtual machining used in machining process simulation, one can build the framework of optimization system on NC machining so that the processes of reliability verification, cutting parameter optimization and error compensation can be integrated into one system to improve machining processes comprehensively. The optimization is realized via modifying NC programs. Several key issues such as virtual machining, cutting parameters optimization, error prediction and compensation are also highlighted. Optimization systems based on virtual machining have been developed to demonstrate the effectiveness of off-line optimization for different purposes. The results show that the machining process is obviously improved. |
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