Ultrasonic vibration finishing is carried out on the 9 Cr18 bearing steel samples of typical difficult-to-machine materials for aircrafts.Through the tests of surface residual stress,micro-hardness,tensile properties at room temperature,fatigue properties,and microstructures,this paper explores the influence of ultrasonic vibration finishing on the cutting performance and structure fatigue life of typical difficult-to-machine materials of aircraft,and provides a new preparation process plan to meet the long-life design indicators proposed by airframe structure of the new generation aircraft.
关键词
轴承钢/超声振动光整加工/残余应力/疲劳寿命
Key words
bearing steel/ultrasonic vibration finishing processing/residual stress/fatigue life
维普
万方数据