STUDIES ON THE EVALUATION OF EFFECTIVENESS OF PASSIVE COOLING TECHNIQUE DURING TURNING OF CAST IRON
Keywords:
Dry Machining, Cutting tool insert, Passive Heat Extraction Technique, Thermal Load, Heat PipeAbstract
Machining dry, without coolant is advantageous due to decreased costs and also because of possible negative effects of coolant on operator’s health and to the environment. The chances of tool failure at higher cutting temperatures due to one or more of the reasons, like thermal cracking, chipping, micro - Chipping, built-up edge, Mechanical fracture, notching, deformation, crater and flank wear. The study is focused in creating highly controlled temperature environment for the cutting tool insert in more practical way for the small-scale industries. The special tool holder is manufactured in-house as per the requirement of the study. The heat sink material copper inside the tool holder is poured through the casting technique which has higher conductivity. Important observation made in this study is micro – chipping which is present with the conventional tool holder but not with the insert of special tool holder. The experimental results are very much comparable with computational values simulated with Ansys as analysis software.
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