Notice of RetractionCutting pattern registration method for free form surface machining

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

A problem of generating tool path for free form surface machining with optimized tool path topology is addressed in this paper, while the machining efficiency is maximized as much as possible. Using this method, the global property of the tool path (i.e., its topological feature) can be controlled while the detailed cutting direction at every local position yields large material removal. The planning of the tool path consists of three stages. Based on the analysis of the geometric properties of the machined surface and the cutter orientation, an optimal machining direction field in the two dimensional parametrical space of the machined surface is first generated. As this initial direction field is often irregular spaced or contains outliers caused, a functional optimization problem with linear filtering is solved to obtain an approximation of this initial direction field in the least square sense. Based on curvature analysis, the approximation field can be further classified into four types of direction fields, each of which can be registered with an adequate cutting pattern. Simulation is given to demonstrate the validity of the proposed method.