АДАПТАЦІЯ ТЕХНОЛОГІЇ ВИГОТОВЛЕННЯ АРТИЛЕРІЙСЬКИХ ГІЛЬЗ ТА ПІДДОНІВ ПІД ВИРОБНИЧІ ПОТУЖНОСТІ УКРАЇНИ

Abstract

The study proposes to adapt the technology of manufacturing artillery shell to the production capacity of the military-industrial complex of Ukraine, thus reducing the time of preparation for production using standard equipment. Computer modeling of technological transitions of the formation of semi-finished products in the appropriate conditions were carried out in order to develop the technological process. The simulation was performed in the DEFORM-2D/3D software package. The modeling and the calculation analysis of technological transitions of production of a cartridge case artillery shell from 11UA steel are carried out. With the help of computer modeling, necessary technological parameters for the process were found out: temperature, energy-force parameters of the processes, final shape and dimensions of semi-finished products, as well as stress-strain state and degree of plastic resource utilization at each deformation transition. Based on the results obtained from computer modeling, experimental equipment for all transitions in the technological chain was designed and manufactured. The results of calculations and efficiency of the given manufacturing technology were confirmed experimentally. The workpiece after stamping operations (hot extrusion, hot drawing with thinning, cold drawing with thinning and flange settling with local heating of the workpiece) is brought to the final shape and size by rotary extrusion, which reduces the number of technological transitions performed on press equipment. Rotary extrusion of workpieces was carried out on a 16K20 lathe by spherical roller. In addition, rotary extrusion, as a finishing processing, allowed to correct the diversity in wall thickness obtained during stamping.