Net size forming process of ceramic target material

According to the technical scheme, the net size forming process is characterized by comprising the following steps that loading and firing are conducted in a vertical seat firing mode, during loading and firing, emery is placed on the periphery of a kiln car table top to surround the kiln car table top, a high-temperature aluminum oxide hollow ball is placed in the middle of the kiln car table top, and the horizontal state of the high-temperature aluminum oxide hollow ball is adjusted through a gradienter; then putting a processed gasket which is homogeneous with the green body; then emery is placed on the periphery of the gasket again to fix the hollow balls, the horizontal state of the placed hollow balls is adjusted through a gradienter, the blank is prevented from being contracted and blocked, then the blank is placed into a green base, the distance is adjusted, and the emery is evenly scattered in the green base to reduce the contraction and blocking; the processed green body is carefully placed in the g