Experimental studies of tribological properties of hard indexable inserts with vacuum-plazma coatings at cylindrical milling of woodchip boards

Abstract

The article presents the methodology and results of experimental studies of friction coefficients that characterize the processing of chipboard tail cutters, knives equipped with vacuum-plasma coatings. The developed technique for determining the coefficient of friction of the back of the blade and the adjacent part of the cutting edge in milling based on the simultaneous registration of the tangential and normal cutting forces on the back of the blade during the cutting process with zero height allowance being taken. The research results have allowed to perform scientific basis of tribological characteristics of vacuum-plasma coatings deposited on the cutting elements, optimization of coating parameters.