Abstract
Abstract The cutting tool industry is striving towards making low cost, but high performance tools available to the industry, which gives good finish and dimensional accuracy that can eliminate subsequent operations like grinding. One such tool is found to be molybdenum based M2 HSS tool, which has been widely used in the industry. Added to this, cryo treatment of this tool has been found to improve the toughness of this tool and increase the productivity, which in turn can bring economic benefits. With this background, the authors in previous publication have compared the machining parameters machining force, machining power and surface roughness and their optimization while machining aluminum AL6351 using deep cryo-treated Molybdenum M2 tool. Considering very little is reported on the effect of the cryo-treated tool on tool tip temperature this paper presents this aspect along with micro-structural analysis of the machined material. Obtained results have been analyzed by statistical method to authenticate the findings. While the tool tip temperature showed that the tip temperature for the treated tool was about 10% lower than that of the untreated tool, machining operation at higher speeds, higher feed and higher depth of cut compared to those with untreated tool without losing surface finish.
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