DEPENDENCE OF PORE SIZE ON CUTTING TOOL PARAMETERS DURING MACHINING OF SINTERED POWDER MATERIAL

Abstract

This article aims to demonstrate the influence of cutting tool characteristics on pore sizes during fine machining of sintered porous material. The result of the study is the identification of factors affecting pore tightening, as well as changes in their size and shape during machining of sintered porous material. Based on the research, it was found that the most important factors influencing surface quality are: the material of the cutting tool used; the ability of the processed material to resist plastic deformation; cutting modes, determined by the conditions of interaction between different materials; the use of coolants, the necessity of which is dictated by the technical conditions of cutting a particular material. The influence of the cutting tool characteristics on the pore size during the machining of sintered porous iron of the PZhR-3 grade, both with and without coolants, was investigated. Turning cutters with different inserts and a grinding wheel were used as cutting tools.