Studies of the Influence of Thin Film Coating on the Heat Formation Process During Processing

Abstract

The article is devoted to one of the promising methods of increasing the penetrating ability of COTS into the zone of contact interaction between the tool and the workpiece and, accordingly, increasing the operational characteristics of the tool life by applying fluorine-containing surface-active substances (fluorine-surfactant) from epilam solutions to the working surface. Tribological tests were carried out using a special installation, where the test conditions are close to the conditions characteristic of the drilling process. Based on the results of the experiment, it was found that the effectiveness of epilating directly depends on the cutting speed, which determines the temperature in the contact zone.

Experimental Studies of Deformation and Temperature Processes Mandrelling in the Deform-3D System

“…The wrong choice of it can lead to a significant deterioration in the quality of the mandrelling surface, an increase in the mandrelling force, a decrease in mandrel resistance, an increase in the coefficient of friction, etc. Mandrelling without lubrication, due to the molecular bonding between the metal being processed and the tool, if they are homogeneous, causes the metal to stick to the tool and can lead to jamming of the mandrel in the hole [11,12].…”