Abstract: A force impulse generator designed for machines with impulse action used for press working of metals, ceramics, cermet and other materials can produce force impulses with high values and large amplitude of displacement of the impulse body with reduced overall size, high efficiency, increased service life and neutralized side forces. The generator includes a stationary base to which there is movably connected by means of columns a box shaped impulse body. In a cavity formed between the base and body, there are disposed two identical crank mechanisms, each of which has a bottom hinge segment, a bottom segment arm, a middle hinge segment, a top segment arm and a top hinge segment. The middle hinge segments are driven by connecting rods connected to a common crankshaft. As a result the impulse body is displaced reciprocally and produces an impulse of force.

Abstract: A press tool comprising a bottom plate onto which there are mounted a die with radial grooves and a profiled ejector inserted into the die and circularly oriented in it so that the grooves of the die and the ejector coincide, and over them, by means of guiding columns and guiding sleeves, there are mounted a top plate with a rigid insert attached to its bottom side, a rest and a punch-holder with radial grooves, in which there are fastened prismatic punches and a central core, and underneath the punch-holder there is provided a punch-guide, fastened to the guiding columns by means of guiding sleeves.