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Quality Assurance Test Conducted on Prototype Vehicle Brake Drums
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English
Abstract
Brakes on vehicles are safety items. Their failure could result in fatal accidents. It is therefore necessary that quality control tests are conducted on this vehicle sub system to ensure that individual component parts meet well known specifications for good performance. The sand cast brake drums for in-house developed prototype vehicles were tested for chemical composition using atomic optical emission spectrometer, metallographic structure using a metallurgical microscope, and hardness number using Brinnel hardness tester. They were subjected to X-ray examinations to detect casting defects. Other tests such as dimensional accuracy and balancing are not included in this report.
Results of the chemical analysis show that the undissolved carbon in the matrix is responsible for specimen high hardness number. The X-ray show the presence of some foreign material of less density. The graphite distribution conforms with recommended type for brake drums. Other chemical components are within specified range for brake drums.
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Citation
Folayan, C., Achiv, F., and Isah, L., "Quality Assurance Test Conducted on Prototype Vehicle Brake Drums," SAE Technical Paper 962557, 1996, https://doi.org/10.4271/962557.Also In
References
- Smith Alrick L. “Reliability of Engineering Materials” Butherworths and Co. Publishers Ltd. 7 8 1984
- Hanes H.D. McFadden J.M. “Melting of Castings” An update “Metal Progress” April 1983
- Society of Automotive Engineers Handbook 1 1 1995
- Heine R.W. Loper C.R. Jr. Rosenthal P.C. “Principles of Metal Casting” McGraw-Hill Book Company 609 1967
- Trans. AFS 6.0 “International Porosity in Gray Iron Castings” 401 1952
- Walton Charles F. “Iron Castings Handbook” Iron Castings Society Inc. 144 145