Optimization and selection of cutters for 3D pocket machining

The machining of complex geometrical shapes with a CNC machine tool requires the determination of cutting conditions namely the depth of cut, the feed rate, the cutter diameter, the number of cutters in use, etc. The number and the diameter of the cutters used for the machining of a given pocket has an important effect on the machining time. Consequently, it is necessary to have an algorithm for the optimization of a set of cutters for the machining of a given pocket. This paper is an attempt to determine an optimal set of cutters for the hollowing out of 3D prismatic pockets by means of a CNC machine tool. This approach requires first of all the synthesis of the analytical models developed to calculate the cutting time related to the use of the roughing cutter utilization, the under-roughing cutter utilization, the machining of inner contour corner, and the corner of its bottom. Then, an optimizing algorithm based on these analytical models has been developed. It helps to select the most appropriate set of cutters from the tools available in the production workshop. This algorithm is applied to a particular geometry of a prismatic pocket, and the results show that the optimal choice allows a reduction in the machining time.

[1]  Z. Bouaziz.  Simulation and optimization of cutting tools for the pockets machining in 2D1/2 , 2005 .

[2]  K. W. Chan,et al.  A corner-looping based tool path for pocket milling , 2003, Comput. Aided Des..

[3]  Jun Wang,et al.  Optimization of Cutting Conditions for Single Pass Turning Operations Using a Deterministic Approach , 2002 .

[4]  M. C. Cakir,et al.  Optimization of machining conditions for multi-tool milling operations , 2000 .

[5]  Z. Bouaziz,et al.  Cost estimation system of dies manufacturing based on the complex machining features , 2006 .

[6]  Jonathan Corney,et al.  OPTIMISING AUTOMATIC TOOL SELECTION FOR 2 1 /2D COMPONENTS , 2000 .

[7]  Takeshi Yasui,et al.  Extraction and Optimisation of Cutting Conditions for 21/2 -Axis Milling , 2000 .

[8]  K. Ridgway,et al.  Selection of cutting tools and conditions of machining operations using an expert system , 2000 .

[9]  Satyandra K. Gupta,et al.  A geometric algorithm for selecting optimal set of cutters for multi-part milling , 2001, SMA '01.

[10]  D. Veeramani,et al.  SELECTION OF AN OPTIMAL SET OF CUTTING-TOOLS FOR A GENERAL TRIANGULAR POCKET , 1997 .

[11]  Dharmaraj Veeramani,et al.  Selection of an optimal set of cutting-tool sizes for 2D pocket machining , 1997, Comput. Aided Des..

[12]  R. Saravanan,et al.  Optimization of multi-pass turning operations using ant colony system , 2003 .

[13]  Ali Zghal,et al.  A Fast and Reliable Tool for Estimates for Plastic Blowing Moulds , 2002 .

[14]  P. E. Amiolemhen,et al.  Application of genetic algorithms—determination of the optimal machining parameters in the conversion of a cylindrical bar stock into a continuous finished profile , 2004 .

[15]  R. Saravanan,et al.  Machining Parameters Optimisation for Turning Cylindrical Stock into a Continuous Finished Profile Using Genetic Algorithm (GA) and Simulated Annealing (SA) , 2003 .

[16]  Franci Cus,et al.  Optimization of cutting conditions during cutting by using neural networks , 2003 .

[17]  Ali Oral,et al.  Automated cutting tool selection and cutting tool sequence optimisation for rotational parts , 2004 .

[18]  Pascal Ray,et al.  Corner optimization for pocket machining , 2004 .

[19]  Ali Zghal,et al.  Methodology of machining costs evaluation for die and mould manufacturing , 2004 .