METHOD FOR MANUFACTURE OF BARREL Russian patent published in 2000 - IPC

FIELD: plastic metal working, applicable in manufacture of rifled barrels. SUBSTANCE: the method consists in manufacture of a half blank, its thermal treatment and preliminary machining with production of a pipe-blank, having starting and carrier sections at the ends in the form of a larger and smaller cylinders, manufacture of the semi-finished product by radial reduction and its final machining with removal of the starting section. At preliminary machining near the carrier section the diametral size of the smaller cylinder is made equal to or exceeding the final outside diametral size of the breech end of the barrel, and the diametral size of the larger cylinder remains equal to that of the half blank. Thus, the carrier section is not removed after radial reduction, and used as the breech end of the ready-made barrel. EFFECT: reduced volume of barrel machining. 2 dwg, 1 ex