ДИСКРЕТНО-КОНТИНУАЛЬНІ МЕТОДИ ТА ЗАСОБИ ЗМІЦНЕННЯ ЕЛЕМЕНТІВ МАШИН ВІЙСЬКОВОГО ТА ЦИВІЛЬНОГО ПРИЗНАЧЕННЯ

The work describes the solution of an urgent and important scientific and applied problem: the development of methods and means of discrete and continuous strengthening in the restoration of military and technical elements for strategic sectors of the national economy. The work is designed to meet the urgent need to restore samples of military and important civilian equipment in a short time and with high intensity. This equipment, under conditions of intensive loads during operation and the performance of combat missions in conditions of combat operations, wears out quite quickly as a result of contact interaction and mutual relative motion. At the same time, the processes of loading, contact, friction and wear develop according to a progressive scenario during the service life. And this leads to the failure of valuable objects. To eliminate these problem situations, the basics of technology and means of discrete and continuous strengthening have been developed. It consists in discrete processing of one of the contacting parts and continuous processing of the other. The conducted studies of processes and states during contact interaction of hardened parts made it possible to create a device on this basis that implements the technology of discrete hardening and makes it possible to determine rational technological modes during discrete and continuous strengthening of military and technical elements for strategic sectors of the national economy. Such device makes it possible to significantly increase the hardness, wear resistance and strength of machined structural parts. All effects that lead to an improvement in the technical characteristics of parts strengthened in this way are based on the effects of profile changing of contacting surfaces. This profile becomes hilly. Contact pressure is localized on these hills. Due to this, stresses are shifted to the material of discretely strengthened zones. Taking into account the high mechanical characteristics of material of these zones, the overall strength increases. In addition, tribological characteristics also increase. Efficiency increases, durability extends, and friction is reduced in such connection.