A Study on the Cross-drilling Effects of Brake Disc Rotor

브레이크 디스크 로터 표면 수직 구멍의 영향에 관한 연구

  • Seo, Young-Jin (Department of Mechanical Engineering, KAIST) ;
  • Oh, Je-Ha (Department of Automotive Engineering, Jeonju Machinery Research Center) ;
  • Lee, Jun-Sang (Carbon Ceramic Composite Team, DACC) ;
  • Kang, Kyoung-Soo (Department of Brake R&D, MOBIS) ;
  • Jung, Geun-Sung (Department of Automotive Engineering, Jeonju Machinery Research Center)
  • Published : 2008.02.01

Abstract

Cross-drilling on the brake disc is generally known as a way of improving cooling efficiency. In other theories, cross-drilled holes act like a path of gas or water and are also known that they can reduce fading and wetting of brake rotors. However, in disc rotors with cross-drilling, thermal crack phenomena have been reported more frequently and more manufacturing cost should be paid than non cross-drilled disc rotors. In this study, to examine various effects of cross-drilling on the brake disc, two kinds of brake disc rotors, cross-drilled and non cross-drilled, were used in computational fluid dynamic analyses and dynamometer tests.

Keywords

References

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