Poster Study of surface state after annealing of a steel 42CrMo4 part machined by turning with a ceramic tool and a carbide tool

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Razika Aouad


This article exposed the results of an experimental study on the machining of steel annealing 42CRMO4 with Brinellhardness HB 174, with two cutters: white zirconia ceramic (Al2O3 and ZrO2 ) and the carbide (made of tungsten carbideWC). The test series is devoted to the study of the influence of cutting conditions on the main criteria of the roughness of themachined surfaces (Ra, Rz and Rt), to do this we have made plain factorial trials and based on multifactorial the method ofexperimental design, the variable parameters: cutting speed, feed per revolution and the depth of cut. Modeling results helpedlead to mathematical models like Gilbert (Taylor model generalized). When machining of the steel pure ceramic gave very goodsurface states with high cutting speeds.

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