Cutting performance and surface integrity during rotary ultrasonic elliptical milling of cast Ni-based superalloy

Cast Ni-based superalloys have extensive application in aerospace engine hot end parts, such as tail nozzle adjustment plates, turbine rotors, and guiding devices. Nevertheless, their remarkable mechanical and thermal properties give rise to issues such as poor machinability and surface integrity, and severe tool wear. Rotary ultrasonic elliptical milling (RUEM), a recently developed machining approach that applies ultrasonic transverse vibration to the milling cutter, is evaluated in this study for its effectiveness in controlling surface integrity and tool wear during milling of cast Ni-based superalloys, compared with conventional milling (CM). The findings reveal that RUEM exhibits superior machinability…

• NN
  National Natural Science Foundation of China

  Awards: 91960203, 52375399
• AS
  Aeronautical Science Foundation of China

  Award: 2022Z045051001
• AE
  Academic Excellence Foundation of BUAA for PHD Students