METHOD OF PRESSURE FORMING OF MATERIALS Russian patent published in 1995 - IPC

FIELD: metal pressure forming. SUBSTANCE: method of forming metals and powder materials comprises steps of applying a deforming effort simultaneously to an upper end and a lateral surfaces of a blank; making an extrusion in a direction, being parallel with a direction of applying a main deforming effort; providing at this step a displacement of a material of the blank in a zone of its lower end with a rate, being determined according to a given relation. High grade of material of the blank volume in its lengthwise and lateral directions is provided due to uniform deformation of a structure by plastic shear, whose action is being realized simultaneously in two mutually normal planes, coinciding with directions of motion of a punch and walls of a container. EFFECT: enhanced quality of central zone of material of blank, being formed. 1 cl, 4 dwg