Study of the process of extrusion of articles with branches

Presented are the results of theoretical investigations of metal outflow in the long branch during the extrusion of vessel articles for energy power building. Graphical dependences of the outflow angles and relative branch width on geometrical dimensions of the tool and friction conditions on contact surfaces are shown. In order to test solutions obtained in the results of theoretical investigation, a stamp for vessel production of needle valve with a relative pass with diameter of 20 and 50 made of the 20 and 12Kh1MF steels is developed and . produced. Experimental and theoretical data coincide