Modelling of the Wear of Some Tooling Materials

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This experimental work consists in modelling the phenomenon of wear of various materials under the influence of the most imposing factors on wear like speed, the load applied, the viscosity of the lubricant and the nature of materials of the parts in contact. To answer that, it was necessary to produce a tribometer making it possible to carry out the various tests. To carry out our experiments, one chose an experimental design of the type 33-1.21. The parameters considered were: the hardness of the three types of materials to knowing the 16MnCr5, the 60WCrV7 and the X210Cr12, the speed of sliding motion on two levels and the viscosity of the lubricant on three levels. By the analysis of regression, one could obtain the mathematical model governing wear according to the influential parameters, like his surfaces of answer allowing to determine the optima thus to predict the behaviours of other materials having a hardness included in the studied field.
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Wear; Planning Experiments; Regression; Optimization

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