Optimization of the face milling operations by the criterion of the maximal productivity rate

The manufacturing industry solves mainly a double problem of high productivity rate and quality of product. This dual task depends on the machining regimes which changes have limitations conditioned by the quality of products machined and the reliability of the machine tool units. Studies of machining processes show the productivity rate of machine tools depends on the cutting speed and reliability of the cutting tools. An increase in the cutting speed decreases the tool life and machining time. The optimal balance of the cutting speed and tool life yields the maximal productivity rate of the machine tool. Recommended machining regimens for cutting tools’ obtained at laboratory conditions do not consider the specificity of work of machine tool units in the manufacturing environment. The publications related to the optimization of machining processes do not consider the specificity of muti-blade cutting tools' work and the reliability of machine tool units. The milling machining processes implement the multi-cutter tool, in which cutters are involved serially. The specificity of the milling tool operation is not fully described in publications. The presented research paper considers a mathematical model for optimal cutting speed by the criterion of the maximal productivity rate for the face milling process.