ISOTHERMAL DIE FOR DEFORMATION OF DISKS OF GAS TURBINE ENGINES Russian patent published in 2024 - IPC B21J13/14 B21K1/32 

FIELD: metal forming.

SUBSTANCE: device relates to metal forming and can be used for stamping discs for gas turbine engines. Die comprises top 1 and bottom 2 plates, puncheon 3 and matrix consisting of bottom part 4 and side annular part 8. Non-conjugated surfaces of puncheon and matrix are equipped with heating means 5 and casings 6 from heat-insulating material. Bottom part 4 of the matrix is placed on base 7 in the form of a ring-shaped housing. Inside base 7 on bearings 9 there is a mechanism of worm gear in the form of worm wheel 10, kinematically connected to bottom part 4, and worm shaft 11. Side annular part 8 is conjugated with the cylindrical surface of the bottom part of the matrix and is fixed on a pair of retractable columns 12 connected to mechanism 13 of their vertical movement. Circular groove 14 is made on side surface of circular part 8, which is conjugated with cylindrical surface of bottom part 4.

EFFECT: possibility of making disc of preset shape without traces of warping.

3 cl, 4 dwg