FIELD: technological processes.
SUBSTANCE: invention relates to the processing of metals by pressure and can be used in forging and stamping production in the manufacture of collar flanges. Punching of the preliminary forging is carried out by extrusion of an upset billet into the tapered part of the matrix. Flange of the required size, a tapered collar with a taper exceeding the taper of the final forging, and a blueprint for a through hole are obtained. Then sew the jumper, stamp the final forging with the formation of the tapered collar with a non-inclined through hole by simultaneous distribution and extrusion. After stamping the final forging, trimming is performed.
EFFECT: result is an increase in the accuracy of the geometric dimensions of the resulting products.
1 cl, 3 dwg
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