Abstract: In this paper, the forming process of a central hub by radial-forward extrusion is analyzed by using the finite element software, ABAQUS. Radial-forward extrusion is used to produce hollow parts that generally feature a central hub with radial protrusions. Effective design factors such as mandrel diameter, die corner radius, die fillet radius, mandrel corner radius, tube wall thickness and frictional conditions on the force required are investigated by simulation process. Commercially pure Aluminum AA1100 is selected as a model material for both experimental investigation and simulation analysis. Comparison is made and good agreement between the experimental result and that of finite element method is achieved.

Keywords: Radial-forward extrusion; Finite Element Method; Radial Protrusions