The purpose of this research is to reduce the weight of the brake system of vehicles and to increase braking performance and its durability and to shorten the stopping distance. The plans for light-weight vehicles are to develop light weight material itself which possesses superior properties and another way is to improve the manufacturing method of materials which have the better mechanical properties. And the materials used for this are aluminum alloy, magnesium alloy, titan alloy, steel, other metals, plastic, ceramic materials etc. In this research, aluminum is used for the main body of the break to reduce the weight of the brake and cast iron(SCM4), stainless steel(SUS304) and titan alloy(Ti Gr2) are used for the outer ring shape plate and assembled with bolts. Dynamometer test are braking performed on the brake disc. Based on the test results, stainless steel(SUS304) is optimized for the light-weight brake disc.

ABSTRACT
 1. 서 론
 2. 브레이크 디스크의 소재
 3. 실험 장치 및 조건
  3.1 브레이크 디스크의 제작
  3.2 실험조건
 4. 실험 결과 및 분석
 5. 결 론
 References

• 배희은(Graduate school, Department of Mechanical Engineering, Dong-A University) | Hui-Eun Bae
• 김현수(Department of Mechanical Engineering, Dong-A University) | Hyun-Soo Kim Corresponding Author
• 류미라(Division of Automobile and Busan Institude of Science and Technology) | Mi-Ra Ryu
• 전환영(Department of Mechanical and Automotive Design, Gimhae college) | Hwan-Young Jeon