Ultrasonic-assisted micro-hole machining research and parameter optimization experiment

Ultrasonic vibration is superimposed during the drilling of micro-holes, and the processing technology of micro- holes has always been a problem in mechanical processing. Through experiments, the data of axial cutting force and surface roughness under ultrasonic-assisted micro-hole machining and ordinary drilling conditions are compared, and the optimal processing parameters are selected. Experiments show that ultrasonic assisted machining can effectively improve the problem of large axial cutting force during machining, reduce tool wear, increase tool life, reduce surface roughness, and obtain the best combination of process parameters.