COATED CARBIDE CUTTING TOOLS PERFORMANCE IN HIGH SPEED MACHINING PROCESSES

Abstract

High-speed machining (HSM) has emerged as a key technology in rapid tooling andmanufacturing applications. The present work studies the effect of cutting parameters (cuttingspeed, feed and depth of cut) in turning process applied on C-60 steel using multi- coated carbidecutting tools at high cutting speeds. The influence of cutting parameters on a cutting forces, toolwear and surface roughness are analyzed. The importance of orthogonal force components tosurface finish and tool wear are explored. The results show that cutting forces has a very strongcorrelation with surface finish and that increased spindle speeds lead to far superior surface finish.Tool wear measurements demonstrated the capability of such coated carbide tools in turning steelwith reasonable low tool wear (i.e. high tool life). Forces measured resulted in relatively low values.The cutting component (Fc) isthe largest of all. For the different cutting conditions studied, the feedrate has the greatest influence on force and tool wear.