A study of the influence of processing parameters and tool wear on elastic displacements of the technological system under face milling

A study of the influence of processing parameters and tool wear on the total elastic displacements of the technological system is based on a mathematical model of elastic displacements during face milling. The mathematical model takes into account both plane-parallel and angular displacements of the subsystems 0—“workpiece–device–machine table” and 1—“tool–device–z-head system.” The article covers the method of experimental determination of the element compliances of the GF2171S5 milling machine technological system. Angular compliances of the spindle assembly are not listed in the milling machine technical data sheet; therefore, this work gives a method for compliance determination along the coordinate axes of the machine and angular compliances of subsystems of the technological system. The article presents the adequacy assessment of mathematical models of elastic displacements of the technological system under face milling, for different values of tool flank wear on the flank surface. The article also presents the influences of face milling process parameters (workpiece material, cutting speed, cutting depth, the main cutting-edge angle, the cutter overhang to its diameter ratio, feed per tooth, and different values of the tool flank wear on the flank surface) on the total elastic displacements of the technological system, based on the estimated mathematical model of the elastic displacements of the technological system during face milling.

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