Development of a New Type of High Strength Bimetal Brake Drum

Author of the article:XIE Yuan1 , LU Senjia2 , ZHANG Hongyan3

Author's Workplace：1. School of Information and Manufacturing, Minxi Vocational and Technical College, Longyan 364021, China; 2. Technology Center of Longyan Yulian Information Technology Co., Ltd., Longyan 364101, China; 3. Technology Center of Longyan Changfeng Special Vehicles Co., Ltd., Longyan 364101, China

Key Words：brake drum; high strength; bimetal

Abstract：Based on the analysis of the failure mechanism of brake drum, the reasonable material chemical composition ratio and the smelting process were adopted to improve the casting strength and graphite morphology, so as to enhance the thermal conductivity. At the same time, the compactness of the casting was guaranteed by structural optimization and embedded mesh core bone, and the defects of the casting were reduced, so as to improve the strength and compactness of the brake drum. The results show that the high strength bimetallic brake drum can meet the domestic demand of high load-bearing heavy trucks and improve the economic and social benefits of enterprises.