The Imitation Study of Taper Connections Stiffness of Face Milling Cutter Shank Using Machine Spindle in the SolidWorks Simulation Environment

The article deals with the radial stiffness increase of face milling cutter taper with a shank 7:24 using a machine spindle. The preliminary investigations prove that stiffness increase of such connections is possible by means of a face milling cutter shank with two-contact centering faces design. In this case, a smaller centering face is proposed to design hollow with reduced radial stiffness. In the paper, we have carried out the stiffness imitation study and considered a face-milling cutter taper connection stress-strain state with an improved shank under loading with a machine spindle using SolidWorks. To perform simulation modeling, we have used a parametric 3D model of taper connections static behavior in which external and internal tapers dimensions are associated with certain deviation limit through the SolidWorks equation tool. The parameters of the computational process of nonlinear static analysis in the simulation module have been determined. The parametric model boundary and kinematic conditions have been considered. It has been determined that standard simulation tools use for carving force simulation leads to stiffness system artificial increase. Therefore, in the paper, to simulate the impact carving, we propose to use specially created orthotropic material thermosetting forces. The imitation study shows that face milling cutter shank with two centering faces of all deviation limits leads to higher stiffness connection (smaller radial displacements).