Professor of Mechanical Engineering and Smart Structures, School of Computing Engineering and Mathematics, Western Sydney University, Australia. His research interests cover Industry 4.0, Additive Manufacturing, Advanced Engineering Materials and Structures (Metals and Composites), Multi-scale Modelling of Materials and Structures, Metal Forming and Metal Surface Treatment.
Abstract—Computer numerical control (CNC) machine tools operated at high speeds and under high-acceleration machining conditions with discontinuous tool paths cause undesirable vibrations because of the rigidity of the mechanical structure and abrupt changes in the feed rates. Therefore, this study develops a feed rate determination method for tool path interpolation to determine proper feed rates at the junctions of adjacent piece-wise continued machining segments. This method helps limit over-cutting, feed acceleration, and feed jerk values at junctions. Experiments conducted on a three-axis CNC milling machine using a tool path with different corner angles successfully validated the executing performance and feasibility of the approaches developed in this study.
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