060A4 steel (Chinese standard) is a steel with good machinability, which is very popularly used in mechanical engineering. Therefore, the study of solutions for improvement of quality and productivity when machining this steel type has great technical and economic significance. In this study, the multi-objective optimization process has been performed when milling this steel type on a vertical milling machine. The cutting tool is a face milling cutter made of High Speed Steel (HSS) material. The effect of spindle speed, feed rate, and cutting depth on surface roughness has been found. The combination of the Taguchi method and PSI method has been applied to determine the optimal value of three input parameters to simultaneously ensure the two criteria of the minimum surface roughness and the maximum Material Removal Rate (MRR). The works which will be done by the authors of this article in the near future has also been presented in the last part of this study.
An improved slicing algorithm that uses multiple sets of cutting planes to automatically determine parting curves for 3D parts is proposed. In this algorithm, the sets of cutting planes with their individual roles are simultaneously used to create the slicing profiles, and to extract the intersection points for all the outer and inner loops of the parting curves. The results show that the proposed parting curves overcome many problems inherent in current methods while also making the process fast and effective. The algorithm provides a highly effective solution for handling complicated models that contain free-form surfaces, and can be used by various downstream CAD/CAM systems for industrial mold design.
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