Virtual Booth

This study optimized thermal behavior in high speed milling using cryogenic carbon dioxide (cryo CO2) cooling. A 3D CFD model was developed and validated against the experimental with less than 6 percents error. Using RSM Box Behnken Design, 15 parameter sets were simulated to study the effects of flow rate, nozzle distance, and diameter on heat transfer. Results showed heat transfer rates up to 301.25 W and coefficients up to 88.92 W/m2. ANOVA confirmed flow rate as the dominant factor. The optimized setting were 13 L/min of flow rate, 15 mm of nozzle distance, and 1.3 mm of nozzle diameter which enhanced heat dissipation, offering a promising direction for sustainable and efficient cryo CO2 machining.