Casting Technology Research on the Centrifugal Composite Roller of Three Layers Based on ANSYS

In production process design for the centrifugal composite roller casting of three layers, temperature field of the solidification process is simulated by the finite element analysis software ANSYS. As the result shows, adopting a process of “three pouring and two combining” and adding graphitic steel as the transiting layer can promote combination between the working layer and the core, and save precious metal materials. The parameters, such as rotating speed of centrifuge machine, pouring moment of transiting layer, and molten steel temperature of the core, have a great effect on the casting quality. Based on the process design and numerical simulation, the roller obtains an excellent performance. Its surface hardness achieves HSD75 in the roller body and HSD39 in the roller neck, the working layer thickness ranger reaches 61mm, and the yield strength reaches 485 MPa.