| 摘要 |
FIELD: machine building.SUBSTANCE: initial blank is heated and plastically deformed by press using two operations. During first operation the semi-finished forging is manufactured with height below 0.5 of press slide stroke. This forging has flange and closed cavity. For this in the closed stamp the simultaneous settling of the initial blank, cavity broaching and flange forming are performed. The cavity and forging bottom are finally formed during the second operation by the reverse extrusion in the open stamp.EFFECT: possibility to manufacture at the striking press the forgings with height over 0,65 of the press slide stroke.3 cl, 2 dwg |
