Main differences

•The ring rolling module takes into account the specifics of the process. The solver is adapted to this technological process, which allows to perform simulations faster and without loss of accuracy;

•The finite element mesh of the tools remains stationary during the simulation, but all fields rotate according to the specified motion.

•The module is designed for simulating forging processes. The program does not automatically recognize the simulation of the ring rolling process and the preparation of the initial data is not adapted to this process.

Kinematics of the process (deforming tool)

•It is possible to specify the movement of the deforming tools through the ring growth speed and the ring rolling curve;

•A special algorithm is used to calculate the feed rate of the mandrel from a specified ring growth speed;

•A special algorithm is used to calculate the rotation speed of the axial rolls;

•It is possible to use a special algorithm for automatic movement of the axial stand in the horizontal direction.

•Assumes the use of universal drive types. It is necessary to have velocity data for all tools in all directions. For an axial stand, the translational motion vector must be correctly chosen, because it is impossible to divide the motion into 2 components: vertical and horizontal.

Kinematics of the process (guide tool)

•For centering rolls, an algorithm is used that accurately determines the position of the roll until contact with the workpiece;

•It is possible to specify the centering load in two ways: as a percentage of the maximum load on the mill and using a formula that takes into account the stiffness of the ring at each moment in time;

•It is possible to stabilize the ring without using a guide tools.

•It is impossible to match the drive to replicate the kinematics of the guide rolls;

•It is impossible to stabilize the ring without guide tools.

Stop conditions

•Stopping the process when the specified ring diameter is reached. In this case, you can choose between the internal and external diameters, and for profile rings you can set the level at which we take measurements.  

•Stopping the process only by time. It is necessary to measure the diameter manually and determine the time it takes to reach this diameter.

Additional process parameters

•It is possible to activate the velocity-force dependence for the hydraulic equipment of the mandrel and the upper axial roll;  

•It is possible to perform simulations using a virtual table instead of a geometric one.

•No additional parameters.

Tools for analyzing results

•A "Process quality" category has been added for graphs, which contains a set of functions that take into account the specifics of the process.

•Standard tools for analyzing results are the same as for other processes.