METHOD FOR MANUFACTURING FRICTION PRODUCT Russian patent published in 2021 - IPC B22F7/04 B22F3/16 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy and can be used in the manufacture of friction discs. A layer of friction material is applied to the steel bearing base on at least one side of its side by the method for free filling. It is baked on and the resulting workpiece is compacted by pressing with a force of up to 2.5 t/cm². Then, the friction material is compacted at a distance from the outer circle and from the inner circle identical to it, which is 0.5-1.0 thicknesses of the friction material. The specified additional compaction is carried out with a punch with a smooth surface with a force of 1.4-2.3 of the pressing force, after which sintering is performed.

EFFECT: reduction in the spalling of the friction material along the outer and inner diameters, an increase in the heat transfer of the peripheral areas of the friction disk.

1 cl, 2 dwg, 1 ex