Numerical simulation of extrusion directly following liquid infiltration for manufacturing of Al₂O₃sf / LY12 composite shapes

A numerical simulation technique based on the stable alternating direction implicit (SADI) method and the upper bound element technique(UBET) is presented and applied to simulations of extrusion directly following liquid infiltration which involves infiltration, solidification, and large plastic deformation in one process. The computer-generated animation displayed the workpiece forming process lively. The simulative results are helpful for a better understanding of the technology of extrusion directly following liquid infiltration.