Machinability evaluation during machining of AISI 52100 steel with textured tools under Minimum Quantity Lubrication – A comparative study

Abstract

ABSTRACT Metal cutting industries are facing problems like poor surface quality and high tool wear in dry turning of AISI 52100 steel. In the present study, Minimum Quantity Lubrication (MQL) cooling technique along with textured tools was investigated to address these problems in turning of AISI 52100 steel. In this work, textured tools performance was evaluated during turning of AISI 52100 steel under MQL and compared the obtained results with the untextured tools under MQL, conventional cooling techniques, respectively. From experimental results, it was found that surface textured tools under MQL condition significantly reduced the cutting zone temperature (Tm), tool flank wear (Vb), and surface roughness (Ra) when compared to the other cutting conditions, respectively. Surface textured tools combined with MQL cooling significantly reduced the ‘Tm’, ‘Vb’, and ‘Ra’ to a maximum of 25%, 40%, and 42%, respectively over the conventional tools with conventional cooling. Scanning Electron Microscope (SEM) analysis revealed that fewer surface defects on machined surface and less built-up-edge (BUE) were found in surface textured tools over the untextured tools, respectively.