Optimization of Hybrid Cooling Techniques in High-Speed Machining Of Titanium Alloys

Abstract

High-speed machining of titanium alloys presents significant challenges due to poor thermal conductivity, high cutting temperatures, and rapid tool wear— particularly in aerospace applications. This paper explores a hybrid cooling approach combining Cryogenic Cooling and Minimum Quantity Lubrication (MQL), aiming to optimize tool wear, surface finish, and chip morphology. By comparing cryogenic, MQL, and hybrid methods, the study reveals that the hybrid technique significantly improves cooling performance, reduces wear rate, and produces better surface integrity. These findings have critical implications for the aerospace industry, where machining efficiency and precision are paramount.

Keywords: Titanium Alloys, High-Speed Machining, Cryogenic Cooling, MQL, Tool Wear, Surface Roughness, Chip Morphology, Aerospace Manufacturing, Hybrid Cooling