FE-modeling of tapping for calculating the virtual pitch thread diamete

The development of high-precision tapping operations involves predicting such accuracy. Very often, this requires expensive experiments. Numerical calculation methods, which have recently received wide application, make it possible to replace these experiments with computer simulations. However, modeling is now mainly associated determining the stresses and strength tools, for only cutting tool itself a fragment workpiece are modeled. This approach turns out be unacceptable machining accuracy, since errors in thread size shape significantly depend on actual movement tool, which, turn, depends conditions its fixing machine spindle. In regard, task concerns not specified above technological system elements, but also an clamping tool. addition, after calculating surface part, necessary calculate accuracy characteristics thread. It issues that considered article: results finite element threading tap fixed chuck floatingoscillating type shown. obtained graphs axial force torque correspond expected curves, both numerical values. point cloud made further virtual pith diameter, turned comparable corresponding diameter same from state standard. Thus, calculations show their realism possibility application practice designing thread-cutting operations.