(1) The mold material properties are affected by mold material hardness, good wear resistance and corrosion resistance, plastic deformation resistance, fracture resistance, cold and heat fatigue resistance, etc. There are great differences, and the material properties must meet the use of the mold. It is necessary to prevent the early failure of the mold from occurring. (2) In the influence of the forging process, if the forging process is unreasonable, it will reduce the performance of the steel, cause forging defects, and cause the hidden danger of early failure of the die. Common surface defects of forgings include cracks, folds, pits, etc., and internal defects include organization segregation, unreasonable streamline distribution, looseness, overheating, and overburning.
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