Answer: ① Batch of forgings. For forgings produced in small batches, try to use molds with a simple structure, and the life of the molds can be designed to be lower; for forgings produced in medium and large batches, the mold structure should use multi-step molds such as billet making, pre-forging and final forging. It is necessary to cooperate reasonably to ensure that the whole set of molds has a high service life. ②The material of the forgings. The forming steps and deformation rate are determined according to the deformability of the material to ensure the quality of the forgings after final forging. ③ The shape of the forging. Forgings with complex shapes must adopt the method of dispersed deformation of multi-die bores to reduce the die load, reduce the tonnage of the press, and avoid forging defects. ④Forging equipment. The main consideration is the forging hammer, as well as various presses, the structure of the mold and the mold material must be different.