FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgical production and can be used in hot dies when producing forging of discs at hot-pressing presses. Bottom cylindrical die of die comprises upper shaping, middle and lower support parts. Middle part is made with annular grooves on upper surface, located from periphery to centre and separated by walls. Central groove is separated from the blind axial seat formed in the middle of the upper surface of the middle part. In bottom of seat there are at least two oppositely located longitudinal windows. Each opening is open to the bottom of its blind transverse channel located diametrically opposite the other blind transverse channel. In said blind channels longitudinal openings are opened for connection of channels with annular grooves. Outer periphery of peripheral groove is provided with circular reduction for sealing element.
EFFECT: result is higher stability of shape-forming part of matrix.
1 cl, 1 dwg
