Surface processing a friction surface of a metallic brake disc, which has a surface coating, comprises generating compressive residual stresses in the friction surface and/or smoothening the friction surface before applying surface coating

摘要

Surface processing a friction surface (4) of a metallic brake disc (1), which has a surface coating (5), comprises generating compressive residual stresses in one surface of the friction surface and/or smoothening the surface of the friction surface before applying the surface coating. An independent claim is also included for the metallic brake disc with the friction surface having the surface coating, where the friction surface of the brake disc exhibits compressive residual stresses at their surface.