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

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)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.16, no.1, 2008 , pp. 100-105 More about this Journal
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
Brake disc rotor; Cross-drilled hole; Carbon-ceramic brake disc; Dynamometer; AMS fade mode;
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