THE ANALYSIS OF MANUFACTURING TECHNIQUES OF TUBULAR PRODUCTS MADE OF STEEL 20Х17Н2 BY HYDRAULIC FORGING ON SMOOTH WORK HOLDER

Abstract

Purpose. Determination of hydraulic forging’s parameters of manufacturing of tubular workpieces made of steel 20Х17Н2 for firearm barrels by finite element method. Design/ methodology/ approach. The analysis of existing methods of manufacturing submachine gun’s barrels was made and as result of which more efficient and productive method of manufacturing of tubular products by hydraulic forging on smooth work holder was chosen. The mathematical model of process was worked out for analysis and numerical modeling was carried out by FEM. The possibility of realization of hydraulic forging of workpieces made of steel 20Х17Н2 and required parameters were determined. The final workpieces geometry, which are deformed, and mode of deformation were obtained. For the selection of equipment the load of process and normal stress distribution on tool were determined. Findings. As result of analysis, data with physical-mechanical characteristics of material after deformation, data for designing and constructing of die tooling and selection of required equipment were determined. Originality/value. Present work is actual in different branches of industry, and especially, in defence industry.