高性能花键轴的轴向进给增量式中温滚轧成形工艺及装备  

Axial-feed incremental warm rolling process and equipment for high-performance spline shaft

作　　者：张娅 郭皓蓉 罗健鑫 崔敏超 姚倡锋[1] 赵升吨[2] ZHANG Ya;GUO Hao-rong;LUO Jian-xin;CUI Min-chao;YAO Chang-feng;ZHAO Sheng-dun(Key Laboratory of High Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,School of Mechanical Engineering,Northwestern Polytechnical University,Xi′an 710072,China;School of Mechanical Engineering,Xi′an Jiaotong University,Xi′an 710049,China)

机构地区：[1]西北工业大学机电学院航空发动机高性能制造工业和信息化部重点实验室,陕西西安710072 [2]西安交通大学机械工程学院,陕西西安710049

出　　处：《塑性工程学报》2022年第2期119-125,共7页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(62005218,91860206)。

摘　　要：在轴向进给增量式中温滚轧成形工艺基础上,基于工艺设备一体化思路,研究并设计了高性能花键轴的成形装备,介绍了成形装备各个子系统的组成及功能实现方案。通过42CrMo花键轴滚轧试验研究了交流伺服轴向进给增量式中温滚轧设备的性能。结果表明,单根花键轴的轧制时间约为120 s,相比于传统切削-热处理工艺,效率显著提升;通过测试轧制过程中的电机转速发现,转速的均方根误差小于5%,表明驱动系统具备优异的转速精度和稳定性。对轧制的花键轴进行了测量分析,试验花键轴齿形尺寸在公差范围内,满足装配要求;此外,花键轴截面微观组织和硬度测量结果显示,齿形区域形成了流线形组织,齿面显著硬化,表明自主研制装备成形的花键轴具备优异的性能。On the basis of axial-feed incremental warm rolling process, based on the integration of process and equipment, the forming equipment for high-performance spline shafts was studied and designed. The subsystems composition and function realization scheme of forming equipment were introduced. The performance of AC-servo axial-feed incremental warm rolling equipment was studied by 42 CrMo spline shaft rolling test. The results show that the rolling time of single spline shaft is about 120 s, and the efficiency is significantly improved compared with the traditional cutting-heat treatment process. Through the rolling process of the motor speed test, the root mean square error of speed is less than 5%, which indicates that the driving system has excellent speed accuracy and stability. The spline shaft was measured and analyzed, the size of tooth shape of the tested spline shaft is within the tolerance range and meets the requirements of assembly. In addition, the measurement results of cross section microstructure and hardness show that the streamlined structure is formed in the tooth region, and the tooth surface is significantly hardened, which indicates that the spline shafts formed by self-developed equipment has excellent performance.

关 键 词：中温滚轧 成形装备 高性能花键轴 工艺设备一体化 增量式 

分 类 号：TG301[金属学及工艺—金属压力加工]