Performance evaluation of cryogenic treated tools in turning

Tool wear is a worn portion over the flank and face of the tool. Tool wear is significant for determining tool life and hence it influences the machining economics. The wear measurements are carried by using a tool makers microscope in the present investigations. All the investigations are carried out using cutting fluid. Life enhancement by using cryogenic treatment on HSS is the objective of study. Investigations are carried on different work materials such as AISI 1040, EN8 and EN24. Improvement in tool life up to 90% is observed for soft material AISI 1040 and enhancement up to 39% is observed on EN24. These investigations are aimed at benefiting small industries that use aforementioned tool work combinations. Regression models are constructed for tool wear for both untreated machining and cryogenic treated machining.