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冷模具的工作特点是在一定负荷条件下,使常温金属产生塑性变形并加工成型。工作时,模具温度较低(一般不超过300℃)。根据压机类型、作业条件和被加工材料性质的不同,,冷作模具又可分为冲裁模、落料冲孔模、修边模、冷剪模、冷挤压模、冷镦模、压弯模、拉伸模、螺纹滚丝模和拉丝模等,在轻工、机械、电机制造及无线电仪表等行业的零件制造中,占有很重要的地位,使用极为广泛。近几年来,由于少无切削加工工艺的发展与难加工成型材料的应用,使冷作模具的工作条件变得非常复杂,对使用材料的性能提出了一系列严格而又苛刻的要
Working characteristics of cold mold is under certain load conditions, the plastic deformation of the metal at room temperature and processing molding. Work, the mold temperature is low (generally not more than 300 ℃). According to the press type, operating conditions and the nature of the material being processed, the cold die can be divided into blanking die blanking punching die trimming die cold shear die cold extrusion die cold heading die, Bending dies, drawing dies, thread rolling dies and drawing dies play a very important role in the manufacture of parts for industries such as light industry, machinery, motor manufacturing and radio instrumentation. They are widely used. In recent years, due to the development of less non-cutting processing technology and the application of difficult-to-shape materials, the working conditions of cold-working die become very complicated, and a series of strict and demanding