我厂是山东省机械工业厅定点的凸轮轴专业生产厂,近年来,主要生产以45钢为材质的凸轮轴,其毛坯的加工一直沿用传统的锻造或圆棒料车削成形的方法,加工余量大,工时多,材料利用率较低,尤其后者。材料利用率甚至不足30％,因此产品成本较高,很不适应目前企业发展的要求。87年底,我厂与北京科技大学、莱芜市第一农机配件厂协作,决定应用楔横轧工艺轧制凸轮轴毛坯。凸轮轴轧制比较复杂。以我厂生产的195凸轮轴毛坯为例(见图1),它由许多非对称 I plant in Shandong Province Machinery Industry sentinel designated camshaft professional production plants, in recent years, the main production to 45 steel for the camshaft, the rough machining has been used in the traditional forging or round bar turning forming methods, processing more than Large amount of work time, material utilization is low, especially the latter. Material utilization is even less than 30%, so the product cost is higher, it is not suitable for the current business development requirements. By the end of 87, our factory and Beijing University of Science and Technology, Laiwu City, the first agricultural machinery parts factory collaboration, decided to use cross wedge rolling camshaft blank. Camshaft rolling more complicated. Taking the 195 camshaft blank produced by our factory as an example (see Figure 1), it consists of many asymmetric