圆锥形零件,特别是锥度不大的长圆锥形零件和锥度不大的长圆锥孔零件,它们的冷挤压工艺性是不好的。但在很多产品零件中又往往不可避免地出现了这样的设计结构。因此,探讨这些零件的冷挤压方法是很重要的。近几年来,我们根据产品设计的要求对四种类型锥形零件应用冷挤压工艺,取得了良好的效果。一、几种经常出现的圆锥形设计结构件1.圆锥孔零件,如图1所示。这类零件,只是孔为圆锥形、外形为圆柱体或其他形状: Conical parts, especially conical parts with a small taper and conical parts with a small taper, are not good in cold extrusion processability. But in many parts of the product is often inevitable that such a design structure. Therefore, it is important to explore the cold extrusion of these parts. In recent years, we applied the cold extrusion technology to the four types of conical parts according to the requirements of product design, and achieved good results. First, several conical design structure often appear 1. Conical hole parts, shown in Figure 1. Such parts, but the hole is conical, the shape of a cylinder or other shape: