CAPACITY FOR IMPROVING TRIBOLOGICAL CHARACTERISTICS OF BARREL INTERIOR LINE ON A GUN

Abstract

Barrel is the most important part of a weapon. It represents an element in which double energy transformation is performed: chemical energy of gunpowder combustion transforms into thermal energy, and then it transforms to mechanical energy. A barrel gives a projectile necessary initial speed and flight direction, and through helical grooves, high spinning necessary for stability during the motion towards the target. Barrel exposure to combined effects of heat, high pressures, chemical effect of gunpowder gases and external influences points out the necessity of comprehensive researches of this element of the weapon. Subject of the paper is a presentation of improving tribological characteristics of barrel interior lines of a gun using modern means for surfaces modification in the conditions with high temperatures and pressures.