Proceedings of SerbiaTrib '13

Table 3. Experimental and calculated value of strain hardening h C and parameters of the roughness Ra and Rz.Cover Calcul. Exper. Δ, % Calcul. Exper. Δ, % Calcul. Exper. Δ, % Criterion ВRa, mkm Rz, мкм h CVK6R 1,84 1,42 29 8,4 6,8 23 37 50 26 0,95(Ti;Si)N 1,53 1,35 13 7 6,3 11 34 40 15 1,02(Ti;Si;Al)N 1,64 1,34 22 7,5 5,8 29 35 40 13 1,01The experimental distribution diagrams of thetangential residual stress were performed by meansof methodology of layer-by-layer electrochemicaletching. The using of coated tool leads to theconsiderable redaction of adverse tensile residualstress and its depth, the calculated data correlatewith the experimental ones.5. CONCLUSION (TIMES NEW ROMAN 11PT) - ALIGN LEFT1. The optimal cutting speed of coated toolexceeds the optimal cutting speed of uncoated tool;then less the coatings friction coefficient, then moreoptimal cutting speed.2. The using of coated tool leads to theconsiderable redaction of adverse tensile residualstress and its depth.REFERENCES[1] S. S. Silin: Similitude method of cutting,Manufacturing, Moscow, 1979.[2] V. F. Bezjazichnij: The method of similarity inmanufacturing engineering, Manufacturing,Moscow, 2012.[3] http://ooo-technolog.ru/Fig. 8. The distribution diagrams of the tangentialresidual stress of machined part.13 th International Conference on Tribology – Serbiatrib’13 203