Friction material (metal reinforcement) analysis of brake pad for light rail train system
Brake friction material is very important in braking system where they convert kinetic energy of moving vehicles to thermal energy by friction during braking process. The purpose of this research is to determine the optimal friction materials composition of brake pad for light rail train system. Cur...
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| Format: | Thesis |
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2016
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| Online Access: | http://eprints.uthm.edu.my/9096/ http://eprints.uthm.edu.my/9096/1/Abdul_Rashid_Abdul_Rahman.pdf |
| Summary: | Brake friction material is very important in braking system where they convert kinetic
energy of moving vehicles to thermal energy by friction during braking process. The
purpose of this research is to determine the optimal friction materials composition of
brake pad for light rail train system. Currently all the component of the train system
including brake pad is imported from overseas such as Germany. Hence, this research is
use to find the new formulation of the mixture ratio that may replace or compete with
the commercial available brake pad. Three different testing which are density and
porosity test, shore hardness test and wear test were done in order to select which metal
is the most suitable for railway application. Different composition were used,
(Cu30%BaSO430%), (Cu25%BaSO435%), (Cu20%BaSO440%), (Steel30%
BaSO430%), (Steel25% BaSO435%), (Steel20% BaSO440%), (Al30% BaSO430%),
(Al25% BaSO435%), and (Al20% BaSO440%) this study to determine the optimal
properties with lower wear rate. The selected material were mixed and compacted into
desired mould with 5 tons of pressure. The compacted samples were sintered using two
different temperatures which is 600oC and 800oC. Steel30% BaSO430% results in the
optimal composition since the result shows the lowest porosity, highest SD reading of
shore hardness and the lowest wear rate. The samples were analysed by using Scanning
Electron Microscopy (SEM) with an Energy Dispersive Spectrometry (EDS) system to
determine the morphology surface and overall composition of the samples. Comparing
different sintering temperature, the sintered sample of 800°C shows lower wear rate than
the sample sintered at 600°C. This is due to dense sample without crack showing by the
samples sintered at 800°C than at 600°C. |
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