Tribological performance based machinability investigations in cryogenic cooling assisted turning of α-β titanium Alloy

Machining of titanium is considered as a challenging process due to its ability to interact with various tool materials when critical cutting temperature is exceeded, resulting in excessive tool wear and poor surface finish, etc. To exhibit an efficient machining process, this research study has experimentally investigated the key quality indicators of machinability, namely surface roughness, cutting temperature, tool wear, in-depth analysis of worn tool and cutting force in the machining process of alpha-beta titanium alloy, which used in critical applications, under three sustainable cooling environments i.e., dry, liquid nitrogen (LN2) and carbon dioxide (CO2). The effect of cutting speed and feed rate on such performance measures were examined under a function of cooling strategy as the best substitute in machining. As a result, the feasibility of LN2 cooling has been confirmed to be more significant for the machining of alpha-beta titanium alloy when compared to dry and CO2 machining strategies. To sum up, cryogenic cooling (LN2 cooling) assisted machining of alpha-beta titanium has acquiesced as a sustainable strategy in the context of environmental consciousness.

Automated summary

This research studied the quality indicators of machining alpha-beta titanium alloy under different cooling environments and found that liquid nitrogen cooling was more effective compared to dry and CO2 machining. Cryogenic cooling assisted machining has been confirmed as a sustainable strategy for environmental consciousness.