Casting Process Design and Numerical Simulation of Winch Roller Castings

The casting process of JH-20 winch roller castings was designed.For the casting's symmetrical characteristics of shape and size,bottom gating system and two ingates were defined.The 3-D model of the casting was built by CAD software.The casting simulation software View Cast was employed to simulate the solidification process of the casting.The initial simulation indicates that the shrinkage defects form at the sections connecting the flange.According to the results of numerical simulation and theory analysis,the casting process is optimized.The defects are effectively eliminated by adding risers.So the reasonable process scheme of the casting is obtained.