Aluminum-iron composite brake disc and manufacturing method thereof

The invention relates to the field of automobile braking, in particular to an aluminum-iron composite brake disc and a manufacturing method thereof. The aluminum-iron composite brake disc comprises afriction disc, an aluminum alloy brake pot fixedly connected with an inner ring of the friction disc and a fixing part connected with the friction disc and the brake pot through casting; and the friction disc is of a double-layer structure, the upper layer and the lower layer of the friction disc are fixedly connected through reinforcing ribs, and the distance between inner rings of the reinforcing ribs is smaller than that between outer rings. By means of the limited manufacturing method, the brake pot is combined with the friction disc in a casting mode, and the manufactured friction disc islight in weight and good in heat dissipation. 本发明涉及汽车制动领域，尤其涉及一种铝铁复合刹车盘及其制造方法，包括摩擦盘、与所述摩擦盘内圈固定连接的铝合金刹车锅及通过铸造连接所述摩擦盘与所述刹车锅的固定部；所述摩擦盘为双层结构，摩擦盘的上下两层通过加强筋固定连接，所述加强筋内圈间距小于外圈间距。通过限定的制造方法，将刹车锅通过铸造方式与摩擦盘结合，本发明制得的摩擦盘质量轻，散热好。