在压力加工中模具的寿命直接关系着制件的质量和成本。模具在总寿命期间,由于制件的精度下降等原因,一般都要进行几次小修,如图1所示。关系到模具寿命的因素是很多的,其主要因素如图2所示。 1.模具磨损模具即使在正常使用的情况下由于表面的连续磨损,模具表面几何形状发生变化,引起工件的尺寸、形状都发生变化。 Mold life in the pressure processing is directly related to the quality and cost of the parts. Die in the total life, due to the decline in precision parts and other reasons, generally have to make a few minor repairs, as shown in Figure 1. Factors related to the life of the mold is many, the main factors shown in Figure 2. 1. Mold wear mold Even in the case of normal use due to the surface of the continuous wear and tear, the mold surface geometry changes, causing the workpiece size, shape changes.