Design and Development of Bimetal Brake Drum to Improve Heat Dissipation and Weight Reduction

Paper #:
  • 2014-01-2284

Published:
  • 2014-09-30
DOI:
  • 10.4271/2014-01-2284
Citation:
Raj, S. and Ravi Shankar, S., "Design and Development of Bimetal Brake Drum to Improve Heat Dissipation and Weight Reduction," SAE Technical Paper 2014-01-2284, 2014, https://doi.org/10.4271/2014-01-2284.
Pages:
5
Abstract:
Automotive component light weighing is one of the major goals for original equipment manufacturers (OEM's) globally. Significant advances are being made in developing light-weight high performance components. In order to achieve weight savings in vehicles, the OEM's and component suppliers are increasingly using ultra-high-strength steel, aluminum, magnesium, plastics and composites. One way is to develop a light weight high performance component through multi material concept. In this present study, a bimetal brake drum of inner ring cast iron and outer shell of aluminum has been made in two different design configurations. In two different designs, 40 and 26% weight saving has been achieved as compared to conventional gray cast iron brake drum. The component level performance has been evaluated by dynamometer test. The heat dissipation and wear behavior has been analyzed. In both designs, the wear performance of the bimetal brake drum was similar to the gray cast iron material. The heat dissipation behavior of the bimetal brake drum in both designs was found to be better than conventional gray cast iron brake drum.
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