Brake member and method of manufacturing same

摘要

A brake member integrally cast from a single melt and composed of a sliding portion and a hub portion, the sliding portion having a flaky graphite cast iron microstructure with a good damping capacity and the hub portion having a high-strength cast iron microstructure. The sliding portion which may be a drum or a rotor has a damping capacity Q-1 of higher than 16x10-3. It is manufactured by pouring a melt having a hyper-eutectic flaky graphite cast iron composition into a cavity of a sand mold in which a chiller is embedded adjacent to a cavity region for the hub portion.