Improvement of Manufacturing and Evaluation Technology for the Light Weight Brake Disc Composed of Hybrid Type Material

Paper #:
  • 2014-01-1009

Published:
  • 2014-04-01
Citation:
Kim, Y., Kim, S., Lee, J., Kim, J. et al., "Improvement of Manufacturing and Evaluation Technology for the Light Weight Brake Disc Composed of Hybrid Type Material," SAE Technical Paper 2014-01-1009, 2014, https://doi.org/10.4271/2014-01-1009.
Pages:
5
Abstract:
Reducing unsprung mass of the car is a representative method to enhance the ride & handling performance and fuel efficiency. In this study, brake disc weight is reduced 15∼20% using a hybrid type material. The basis for this study is the separation of the friction surface and HAT(mounting part). Aluminum material is applied in the HAT for a light weight effect. Gray iron is applied in the friction surface section to maintain braking performance. Two types of joining between aluminum and cast iron are developed. One is the aluminum casting method utilizing a gray iron insert and the other is a bolted assembly method. Detailed structure, process and material are optimized using try-out & dynamometer experiments. The Reliability of this development is proved through durability (dynamometer and vehicle) testing.
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