A New Constant Scallop-Height Smooth Tool-Path Planning Algorithm

A new constant scallop-height smooth tool-path planning algorithm is presented in this paper. The algorithm can generate smooth tool path by controlling the curvature of the tool path so as to avoid the tool path’s inflexion which is often generated in traditional constant scallop height tool path planning affecting the machining surface quality. Taking a parametric surface for example, the algorithm is programmed using Matlab software and compared with the traditional one, the result shows that this algorithm can acquire the minimum curvature radius of tool-path line and improve machining quality. Especially in high speed milling, the idea of algorithm has obvious merits in practice. The paper ends with some recent patents and further developments in the fields. A method for calculating depth of cut without any milling selfexcited vibration, a system produces orthodontic aligners by CNC machining and etc.