Fiabilitate şi Durabilitate (May 2018)
ANALYSIS OF THE EVOLUTION OF THE ROUGHNESS OF SURFACES PROCESSED BY TURNING DEPENDING ON THE FUNCTIONAL GEOMETRY OF THE CUTTING TOOL
Abstract
The quality of the surfaces obtained during the cutting process can be appreciated from several points of view, but in this paper one aspect is considered, namely the roughness of the surface. In this way, the study aims to analyze how the surface roughness develops as a result of the variation of the functional geometry of the tool at turning with transverse advance. The technological process of turning with transverse advance is realized with a variable cutting speed, and this also causes a variation of the functional geomtry of the tool. Thus, in the paper was established the optimal construction geometry of a lathe knife that can be used for turning a piece of a certain diameter. Under these conditions, there was identified a correlation between the values of the functional geometrical parameters of the knife used for transverse turning and roughness (the quality of the surface).
