1. Fair selection of materials. For precision and complex molds, the micro-deformed die steel with good material quality (such as air-quenched steel) should be selected, and the die steel with severe carbide segregation should be cast and carried out, and the solution steel can be solid solution and double-fine heat treatment.
2. The mold structure design should be fair, the thickness should not be too disparate, the shape should be symmetrical, for the larger deformation of the mold to grasp the deformation law, reserve the machining allowance, for large, sophisticated complex molds can be combined structure.
3. Precise heat treatment of complex and complex molds to eliminate residual stress generated during machining.
4. Fairly select the heating temperature and control the heating speed. For sophisticated molds, slow heating, preheating and other balanced heating methods can be used to reduce the heat treatment deformation of the mold.