Özet:

In this study, the effect of the height adjustment of the cutting tool on the cutting forces in turning was investigated. Experiments for turning of AISI304 stainless steel material were carried out on a CNC lathe by using carbide inserts that were coated multilayer (MT/TiCN/Al2O3/TiN ) and manufactured with negative cutting angle (-70). The cutting tools were tested for three different levels: at the part axis (0 mm), above of the part axis (+0.5 mm), and at below of the part axis (-0.5 mm). Moreover, three different cutting speeds (100, 150 and 225 m/min), three different feeds (0.15, 0.25 and 0.35 mm/rev), three different depths of cut (0.8, 1.3 and 2 mm) and two different insert radius (0.4 and 0.8 mm) were considered into experiments. Then, cutting forces (Fx, Fy, and Fz) were measured with a standard dynamometer. Taguchi and ANOVA analysis were done to figure out the effect of the setting of the cutting tool height on the cutting forces. As a result of the evaluation, the parameters that are the depth of cut and the feed rate were identified the major effect on the cutting forces. Furthermore, it is seen that the cutting forces were obtained lower when the cutting tool is adjustment at the part axis and above of the part axis. Otherwise, the cutting forces were measured higher, while the setting the height of cutting tool is at below of the part axis. As the depth of cut and feed rate increased in the experiments, the effect of cutting tool height adjustment on cutting forces also increased.

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