楔横轧工艺在内燃机凸轮轴制坯上的应用

Technology of cross wedge rolling to produce camshaft blank

采用楔横轧工艺生产凸轮轴毛坯 ,节材率达 2 0 %～ 4 0 % ,具有工艺合理、技术先进、质量可靠等优点。采用该工艺现已生产 4～ 6缸凸轮轴 2 0 0多万根 ,并建成专业化生产工厂。它是在理论与实践上解决了窄台阶轧齐曲线问题、根圆轴颈拉细与折叠、高精度轧制等一系列难题后取得的 。

The technology of cross wedge rolling to produce camshaft blank has many advantages such as high efficiency ,low noise ,reliable quality control ,material usage increased about 20%～40% and so on A series of difficult problems have been solved in theory and practice ,include narrow concave step shaping ,to avoid defect of dent and fold ,tight tolerance control The market economy benefit and society benefit of the technology is approved