Abstract: A friction disc includes a backing plate and a plurality of tiles having a trapezoid shape. The tiles are cut from a sheet of friction material such that greater than about 80% of the sheet is utilized in the tiles. The tiles are adhered to the backing plate with a phenolic-based resin. A groove extends between adjacent tiles from an inner diameter side to an outer diameter side.

Abstract: Friction disk rings and a method for near net-shape fabrication of the friction disk rings are disclosed. The method includes cutting a friction material into tiled trapeziform strips. The strips are then folded into a disk ring structure that can be hot-pressed, stitched, or sewed, to preserve the disk ring structure. The disk rings include multiple layers of a friction material, each layer includes a plurality of triangular shaped panels. In one embodiment, the triangular shaped panels are symmetric with respect to the radial center of the disk ring.

Abstract: Disclosed is a method for near net-shape fabrication of friction disk ring structures in which trapeziform paneled strips of friction paper or cloth are folded to make uniform 2-ply disks.