Disque de frein à ventilation pour un frein à disque d'un véhicule automobile et procédé de fabrication d'un disque de frein

摘要

The brake disc (10) has front friction ring (12) and rear friction ring which are respectively provided on outer friction surface (14) and inner friction surface. Several cooling channels are formed between the friction rings. The through-openings (26) are formed in order to extend from the bottom of grooves (24) to cooling channel. A baffle edge is formed on the outer diameter of front friction ring which is geared to rear friction ring. An independent claim is included for manufacturing method of ventilated brake disc for disc brake of motor vehicle.