Numerical Simulation and Parameter Optimization of Hot Pushing Elbow Pipe Bending Process

On the basis of the experiments, hot pushing pipe bending process on ox horn core bar is simulated by using MSC.Marc software and orthogonal testing method. Simulations and optimization of sixteen possible combinations of the three parameters T, v and f are carried out with orthogonal testing method L16(43). Aimed at the uniform wall-thickness of elbow pipes, the influence regularity and the influence degree of heating temperature T, pushing speed v and friction coefficient f on the pipe quality are analyzed. The best parameter of hot pushing pipe bending process are T=750 °C, v=4 mm/s and f=0.16.