Sbir phase i: development of a selectively reinforced aluminum composite brake rotor amount: $149,85600 this small business innovation research phase i project is focused on developing a one-piece functionally graded hybrid (fiber/particle) reinforced aluminum alloy matrix automobile brake rotor. The historical review analysis revealed that gradual development of material and processing technique have lead to a lighter weight, lower cost, and higher performance brake rotor as a result of the better understanding of the mechanics of metal matrix composite. Ceramic matrix composites (cmcs) are a subgroup of composite materials as well as a subgroup of ceramicsthey consist of ceramic fibres embedded in a ceramic matrix the matrix and fibres can consist of any ceramic material, whereby carbon and carbon fibres can also be considered a ceramic material. Metal matrix composite brake rotor: historical development and product life cycle analysis 473 historical review of brake rotors brake rotor development and their use began in england in the 1890s. The first passenger car to utilise aluminium metal matrix composite disc brake rotors was the lotus elise the low vehicle mass of the lotus elise, which is 650 kg.
This study focuses on the use of abrasive particle (sic)-reinforced aluminum metal matrix composite material for brake rotors which is expected to generate less heat during braking (due to friction) and also reduces the unsprung mass of the vehicle resulting in better handling. Metal matrix composite brake rotor: historical development and product life cycle analysis 473 historical review of brake rotor brake rotor development and its use began in england in the 1890s. This is a sped up rendition of multipul stops fom 60mph of a motorcycle brake rotor it's outstanding metal matrix has particular qualities and high stability that only matrix brakes can offer. Aluminium metal matrix composite materials are selected and analysed the results are compared with existing disc rotor the model of disc brake is developed by using.
A perfect example is metal matrix composites (mmcs) been explored to make prototype brake rotors fiberglass rotors as well as other lightweight composite-based structures in the rotor. Michigan-based materials company rel is also working on low-cost lightweight brake rotors, made from a ceramic fiber-reinforced metal matrix composite source: empa 1 / 1. To minimize porosity in the cast metal matrix composite 11 brake disc rotor the disc brake discs are commonly manufactured out of grey cast iron the sae maintains a. Keywords: sustainable analysis, al-metal matrix composites, automotive component, brake disc abstract in this paper sustainable analysis is performed due to the increasing demand for fuel.
The rotors' testing results indicate that a functional reinforced aluminum metal matrix composite rotor is viable option for front and rear brake applications in the automotive and commercial trucking market. Metal matrix composite explained making metal matrix composite functionally gradient metal matrix composite (mmc) by definition is a type of material with at least two constituent parts, one being a metal. Question i have just purchased a lotus elise s1 complete with original metal matrix composite (mmc) brake rotors and i have just ordered some replacement brake pads. Metal matrix composites are composed of a metallic matrix such as aluminium, magnesium, iron, cobalt, copper and a dispersed ceramic like oxides, carbides or metallic (lead, tungsten, molybdenum) phase. Abstract — an automotive brake disc or rotor is a device for aluminium metal matrix composite as the most appropriate material for brake disc system.
Mc-21 metal matrix composites (mmcs) provide the lightweight and corrosion resistant properties of aluminum while significantly improving the strength, stiffness, wear resistance and reducing coefficient of thermal expansion. The specific material that the rotors will be made from is a ceramic fiber reinforced, metal matrix composite its composition can be tweaked to address the specific tolerances required on. Metal matrix composites can be classified in various ways one classification is the consideration of type and contribution of reinforcement components in parti.
A metal matrix composite (mmc) is composite material with at least two constituent parts, one being a metal necessarily, the other material may be a different metal or another material, such as a ceramic or organic compound. Metal-matrix composites john v foltz, metallic materials branch, naval surface warfare center, white oak laboratory charles m blackmon, applied materials technology branch, naval surface warfare center, dahlgren laboratory. The reinforced particulate aluminum metal matrix composite for brakes is used to form a brake component, such as a brake rotor, a brake coupler or the like the composite is formed from an aluminum metal matrix reinforced with ceramic particulates. In this study, we developed aluminum metal matrix composites brake rotor and pads, which have equivalent braking effects and wear resistance to those of the conventional cast iron rotor, by optimization of the quantities and the particle diameter ratio of hard particles used for the rotor and the pad.
Alumina coated lightweight brake rotors were investigated to evaluate the effect of coating properties on their friction performance and thermal durability an alumina ceramic coating on aa6082 aluminium alloy (al-alloy) and on 6061/40sic aluminium metal matrix composite (al-mmc) prepared by plasma electrolytic oxidation was studied using a programme of brake dynamometer and material. For all these reasons, metal matrix composites are only at the beginning of the evolution curve of modern materials as lightweight, stiff, wear-resistant applications become of greater value to transportation and other industries, more high volume uses will evolve brake rotors, pistons and drive yokes are examples. This website is a pdf document search engine no pdf files hosted in our server all trademarks and copyrights on this website are property of their respective owners.