Materials Tools Cutting Parameters Study

Résumé: In this research paper, the effects of the machining parameters over the tools wear mechanism and the residual stress induced into machined material have been examined in turning using carbide with coated (TiN/Al2O3/TiCN, TiAlN and Al2O3/TiCN) tool. Wear on the flank of a cutting tool is caused by friction between newly machined surface and the contact area on the tool, which plays predominant role in determining tool life. Detailed study wear mechanism at the cutting edge of carbide tools were carried out at cutting speed of vc = 80 -110 m/min and f = 0.25 - 0,4 mm/rev. These machining parameters are adopted to analyze their influence, significance and contributions on the wear on the flank of a cutting tool and residual stress. The tool wear analysis showed a predominance of the adherence/attrition mechanism with the appearance of grooves caused by the hammering of the burr generated in the chip during the turning. This, in its turn, contributed even more with the adhesion, making it difficult to remove the material which increased the effort in cutting, generating superficial compressive residual stress

Publié dans la revue: Communication science et technologie