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In Optimizing CBN 7050 Lifetime During Hard Turning
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DOI: https://doi.org/10.15866/irece.v6i3.7970
Abstract
The purpose of this study is optimization of the behaviour to the wear of the cubic boron nitride (CBN 7050) at the time of the turning of the bearing steel 100 soaked Cr6. Initially tests were carried out according to the method of planning of the experiments with an aim of evaluating the influence of the elements of mode of cut on this behaviour. A mathematical model validated by the criterion of Fisher, expressing the relation between the wear and the elements of mode of cut was proposed in a second place. The experimental results show that the best held was obtained for the cutting speed average Vc = 120 m/mn and that the cutting speed is the most influential factor. The method of optimization used of the greatest slope (Steepest descent) allowed to sort out an optimized cutting speed value (Vc=62m/mn, fairely good enough for numerically controlled machine applications.
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References
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