К ВОПРОСУ КАЛИБРОВКИ ТЕХНОЛОГИЧЕСКОГО ИНСТРУМЕНТА ПРОШИВНОГО ПРЕССА ТРУБОПРЕССОВОЙ ЛИНИИ
Keywords:
press, pipe preparation, insertion, mandrel, expander, metal, working environment, pipe, Stokes's hypothesis, pressure, mathematical model, force of axial resistance, functionality, variation, Euler's task, minimization, optimization, calibrationAbstract
The mathematical model of process of an insertion and expansion of pipe preparation on a parsing press of the parsing line is developed. The ax symmetric current of metal (working environment) between the container plug, a mandrel or an expander is considered. Consistent pattern of distribution of pressure of metal upon a mandrel or an expander taking into account operating conditions in the deformation center is determined. The functionality of axial resistance of a mandrel or expander to a channel of metal at realization of processes of an insertion or expansion of pipe preparation is created. From a condition of minimization of functionality of axial resistance of a mandrel or an expander in a stream of metal the optimum form (calibration) them forming is established.
