Forming conception of liquid metal by punching-casting and forming process of bimetal were described. Forming effects of punching-casting Pb-Sn bronze on the 45# steel billet were observed. The results indicate that the punching-casting forming for liquid metal is the forming process of combining casting with punching

in which bonding interface exhibits better solidification binding and mechanical inlaying by co-action of solidification and somewhat plastic deformation

so one metal can be uniformly and firmly cladded on the other metal with some thickness. The characteristics of punching-casting for liquid metal was described.