Second, processed in advance forging wheel blank for rework operations, through the numerical control machining center (i.e., CNC) milling wheel eventually modelling, the method can reduce the working procedure and time of early prepared. Itself has a lighter weight and better the dynamic balance of performance, so the more lightweight, higher reliability, higher in sealing; At the same time is a higher manufacturing costs, relative to a single simple modeling.   Plasticity. In manufacturing process of forging steel wheel, aluminum piece is continuous punching, so after forming its molecular structure will become very tight, so can bear high pressure. And because the forging wheel structure is compact, can withstand the high stress, so on shape design can design some lively fine spokes, higher design degrees of freedom.