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搓挤压工艺已被广泛应用在标准件螺钉制造中螺纹的一次加工。另外,搓挤压工艺也可用来提高电器、无线电、仪器仪表等行业中圆轴、圆柱类零件的表面粗糙度和加工精度。现将有关情况介绍如下: 1.搓板设计图1中的动、静搓板是搓挤压工艺中的主要零件。现以Z-25-12自动搓丝机为例,动搓板和静搓板的几何形状及尺寸见图2、3。搓板材料为Cr12钢,热处理硬度为HRC60～64,搓板可加工零件的外形最大尺寸为φ10×100mm。 2.调整方法圆轴、圆柱类零件采用搓挤压工艺与螺钉的螺纹加工一样,其效果的好坏,主要是搓板开档距离的调整。调整方法如下:
Rubbing extrusion process has been widely used in the manufacture of standard screw thread machining. In addition, squeeze extrusion process can also be used to improve the electrical, radio, instrumentation and other industries in the shaft, cylindrical parts of the surface roughness and machining accuracy. The relevant situation is introduced as follows: 1. Washboard design Figure 1 in the dynamic and static washboard squeeze extrusion process is the main part. Now Z-25-12 automatic thread rolling machine, for example, dynamic washboard and static washboard geometry and size shown in Figure 2,3. Washboard material Cr12 steel, heat treatment hardness HRC60 ~ 64, washboard Machinable parts of the shape of the largest size φ10 × 100mm. 2. Adjustment method Round shaft, cylindrical parts using rubbing extrusion process and screw thread processing, the effect is good or bad, mainly washboard open file distance adjustment. The adjustment method is as follows: