METHOD OF PRODUCING RECESSES IN DISK OF TURBO-MOTORS Russian patent published in 2018 - IPC B23H9/04 B23H9/10 B23H3/04 F01D5/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to a method for the electrochemical performance of a plurality of recesses (50) in disk (52) of a turbomachine. Method includes the steps of: positioning the ring (55) against first surface (53) so that the center of ring (55) is on the axis (X) of disk (52), specified ring (55) contains inner surface (57), containing many protrusions (58) with a form that complements the shape of the recesses to be made (50); bringing the electrolyte into circulation near protrusions (58) of ring (55); turning the first translational motion of the ring (55) on along the axis (X) of disk (52) in the direction of the second surface; turning the rotation of disk (52) on around the axis (X) of disk (52); generating a pulse of electric current in the electrolyte when ring (55) is essentially at the level of the first surface, said pulse causes ionic dissolution of disk (52) at the level of protrusions (58) of ring (55); reducing the rotational speed to a first reduced speed when ring (55) is substantially at the level of first surface (53) during the first period of time; stopping the first translational motion of ring (55) when ring (55) is moved beyond second surface (54).

EFFECT: invention provides recesses for axially holding blades mounted on a disk.

7 cl, 10 dwg