Study on cutting temperatures of SiCp ∕ Al composites for ultrasonic vibration-assisted cutting

In order to deeply understand the cutting mechanism of SiCp inline-formula $M3inlinescrollmathml/$ 8pt14ptsvg-formulamathimge653eaf840568ee76bb20ba3bf368ae0 ms-15-293-2024-ie00004.svg8pt14ptms-15-293-2024-ie00004.png  Al in ultrasonic vibration-assisted turning, a prediction model of a cutting temperature field of SiCp inline-formula $M4inlinescrollmathml/$ 8pt14ptsvg-formulamathimg57ee8123d9c9aefcf23d9c7f6463c158 ms-15-293-2024-ie00005.svg8pt14ptms-15-293-2024-ie00005.png  Al composites in UVAC (ultrasonic vibration-assisted cutting) was established. A theoretical model of instantaneous cutting depth and transient shear angle was established considering the real-time changing cutting depth, tool front angle and shear angle characteristics of UVAC. The relationship between cutting speed, shear speed and chip flow speed in UVAC processes is revealed, as well as the shear force and the front cutter friction force. Finally, the influence of heat generated by the heat source zone and shear heat source zone on the temperature rise was calculated, and the temperature field model was established. The experiment of processing SiCp inline-formula $M5inlinescrollmathml/$ 8pt14ptsvg-formulamathimg93e47eb16cb371fe6916d3191efc4f1d ms-15-293-2024-ie00006.svg8pt14ptms-15-293-2024-ie00006.png  Al composites by UVAC was carried out. SiCp inline-formula $M6inlinescrollmathml/$ 8pt14ptsvg-formulamathimg073414a2b77546d8d5847ae97897d626 ms-15-293-2024-ie00007.svg8pt14ptms-15-293-2024-ie00007.png  Al composites with 25 % volume fraction were turned, and the cutting temperature data were measured and recorded by an infrared thermal imaging device. The cutting speed, cutting depth and feed rate were tested by a single factor, and the changes in cutting temperature under different parameters were compared. Finally, the experimental data were compared with the theoretical values to verify the validity of the theoretical model.