复杂型面滚轧成形设备现状分析

相比于传统切削加工,复杂型面滚轧成形轴类零件的强度提升、表面质量好、加工时间短、材料利用率高。复杂型面滚轧工艺类型更多、成形过程运动更复杂,不同复杂型面滚轧工艺所要求成形设备结构及运动方式也各不相同,因此首先分析了复杂型面滚轧工艺类型及衍生分支,进而阐明了相应的平板模具搓制、轮式模具滚轧、轴向进给主动旋转滚轧的设备结构原理及运动特征,评述了不同类型的复杂型面滚轧设备的最新研究进展,介绍了具有代表性的典型产品。在此基础上指出了伺服化是复杂型面滚轧设备发展趋势,复合振动或温成形是解决高强材料复杂型面精确滚轧问题的途径。

Current Status of Rolling Forming Machine for Complex Profile

Compared with the traditional machining, the shaft parts formed by complex profile rolling process have increased strength and good surface quality with short time of manufacture and high utilization of material. However, there are many types of complex profile rolling processes, and motion in the process is more complex. The structure and motion of rolling machine for different rolling processes are also different. Thus, the types and derived branches of complex profile rolling process were analyzed at first. Then the structure, principle and motion characteristic of rolling machines for rolling with flat dies, rolling with round dies and axial-pushed rolling with active rotation were illuminated. The recent advances in different types of rolling machines were stated. The typical rolling machines for different rolling types were introduced. Then it is presented that the developmental trend of rolling machine for complex profile rolling process is servo; and coupling with vibration or warm forming is an approach to provide precision rolling of complex profile used high-strength material.