PREDICTION OF TOOL LIFE OF UNCOATED CARBIDE INSERT
Keywords:
Tool life, Machining, Flank WearAbstract
Over the last few years an extensive study has been carried out on the machining of metals to predict cutting force, cutting temperature and tool wear. Tool life is one of the most important parameter in the machining research area and it forms basis to evaluate the performance of the tool material and to assess machinability of the work material In general, carbide inserts looses its life by gradual wear. In the present study, experiments are conducted to study the wear behavior of Carbide tool insert during turning of Carbon steel (AISI 1055). The influence of independent variables or the primary machining parameters such as cutting speed, feed and depth of cut on the tool life is studied. The cutting parameters are varied and wear behavior of carbide insert is studied under dry cutting conditions. A generalized mathematical model is formulated to predict tool life with a power form equation using cutting parameters. The wear of the cutting insert is evaluated by Tool Makers Microscope. The experimental studies indicate that the cutting speed has more effect on the tool life than feed rate and depth of cut. The results shows that the experimental values of Tool life and the Tool life values predicted from Mathematical model are in good agreement with each other.
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References
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