For aluminum alloy processing of cross shaft die forgings, due to its complex structure, it is necessary to study the matrix design and terminal matrix and shaping treatment to produce the requirements of the technical specifications of the forging matrix meeting and produce good economic benefits. For example, the large steam turbine rotor impeller is used for the hammer forging of large wafer die forgings, and the rotary forging method is used for the design of special structure dies, Traditional production methods use hammer forging process to form such parts.

For parts with large fork pitch and shape, the efficiency of this method is low, and the pressure is large, and the process is cumbersome, so the material density is not high, and the grain refinement is not enough. The blank is formed by extrusion, and the structure of the blank is more fiber, and the shape of the blank is closer to the shape of the terminal forming parts. The material flow in the terminal forming process is more conducive to forming, and the performance of the components after the terminal forging is improved, and the material utilization rate is improved.