Draft regulations to the destination conditions of processing drilling

Abstract

The aim of the development of a normative document purpose drilling modes according to
the criterion of the heat balance in the cutting zone.
Urgency studies of thermal machining process due to the fact that heat is allocated as a result
of cutting, largely determines the load on the cutting tool, its durability, as well as the quality and
dimensional accuracy of the machined surface. In the process of practical implementation of the
"Appointment of cutting conditions for machining holes combined axial tool" obtained by the
author of scientific research, the project enterprise standard has been proposed. Experimental
studies have shown that the greatest effect on breaking holes provides cutting speed. Increased
cutting speed within the studied interval velocity leads to an increase in breaking holes by
increasing the intensity of heat flows and increased thermal strains tool and workpiece. Increasing
the depth of cut and feed holes also contributes to breaking, but their effect is less significant.