General stiffness model for five-axis CNC machining
نویسندگان
چکیده
Five-axis CNC machining has become an important method for processing thin-walled parts. However, compared with the traditional three-axis machine system, the tool path planning becomes more difficult especially in high-speed and accuracy machining process. In this paper, taking into consideration the rigidity establishes a general stiffness model in order to increase the surface quality, restrain the chatter of the machine and provide a reference for tool path planning. The model considerate the comprehensive impact of the tool posture, tool overhang length, transmission axis of the machine and the parts, in which the finite element method and the principal of virtual-work are applied.
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