METHOD FOR MANUFACTURE OF ARTILLERY GUN BARREL Russian patent published in 2001 - IPC

FIELD: methods for manufacture of weapon parts and assemblies, in particular, methods for manufacture of gun barrels. SUBSTANCE: for production of a barrel without any weight flexure in the gun, the barrel blank is installed in a horizontal boring machine provided with a swivel head with two four-jaw chucks and an annular stedyrest, the blank is aligned, a duct is bored in it. Then, the external surface is turned on a lathe with rotation of the blank aligned relative to the lathe axis is several cross- sections on preliminary made supporting shoulders with a permanent wall thickness in circumference, the distance between which is determined depending on the original non-linearity of the blank. The blank is installed in the machine for boring in such a manner that its weight flexure in the machine chucks and steadyrests in value would correspond to the weight flexure of the barrel in the gun, bored, then the deflection of the bore from linearity is measured, depending on this value, the position of the supporting shoulders on the blank is determined from the given formula, two supporting shoulders with a permanent wall thickness in circumference are made on the blank, the blank with the supporting shoulders is installed on the lathe roller steadyrests, secured by the centers installed in the chuck and in the loose head of the lathe, and the barrel external surface is turned. EFFECT: enhanced quality. 10 cl, 6 dwg, 4 tbl, 4 ex