Surface Roughness Analysis in Milling of Tungsten Carbide with CBN Cutters

Abstract

Surface Roughness Analysis in Milling of Tungsten Carbide with CBN CuttersIn this paper, an experimental surface roughness analysis in milling of tungsten carbide using a monolithic torus cubic boron nitride (CBN) tool is presented. The tungsten carbide was received using direct laser deposition technology (DLD). The depth of cut (ap), feed per tooth (fz) and tool wear (VBc) influence on surface roughness parameters (Ra, Rz) were investigated. The cutting forces and accelerations of vibrations were measured in order to estimate their quantitative influence onRaandRzparameters. The surface roughness analysis, from the point of view of milling dynamics was carried out. The dominative factor in the research was not feed per toothfz(according to a theoretical model) but dynamical phenomena and feed per revolutionfconnected with them.