Involute Spline Cold Roll Forming Numerical Simulation Software System Development

Cold rolling is an advanced non-cutting processing technology, it is widely used in involute outer spline manufacture field. But the spline cold rolling technical parameters are difficult to deal with. Empirical formula and try-and-error method are more used in manufacture, which wasted manpower and material resources. Thus a spline cold rolling simulation system is necessary. The system can model and simulate automatically when user input some necessary parameters on the interface. Rolling process data is provided and the design efficiency is improved greatly.The involute outer spline cold rolling principle is studied and an involute outer spline cold rolling simulation system is developed by Visual Basic and ANSYS/LS-DYNA software. It includes data base query, rolling parameter calculation and forming numerical simulation.(1)Rolling parameter calculation module: In this module, the formula of spline cold rolling parameters is studied and programmed utilizing Visual Basic. The program calculation of technological parameters such as blank diameter, roller toothnumber, the maximum rolling force and so on is realized.(2)Data base module: Access data base is established by utilizing Visual Data Manager, the function such as query, add, modify and delete of spline cold rolling parameters, material properties and forming simulation results is realized.(3)Forming numerical simulation module: The spline cold rolling parametric module and simulation are realized by utilizing APDL. By utilizing VB, the seamless connection between VB and ANSYS/LS-DYNA is realized.This system can calculate rolling technological parameter and simulate quickly, forecast the problem in manufacturer, provide technological parameter and reference for equipment selection. It also prompted the spline cold rolling forming technology.