Temperature dissipation and thermal expansion of automotive brake disc by using different materials

Author(s):  
S. Sathishkumar ◽  
S. Ramesh kuamr ◽  
A. Jeevarathinam ◽  
K.S. Sathishkumar ◽  
K.V. Ganesh Kumar
2012 ◽  
Vol 585 ◽  
pp. 559-563
Author(s):  
M.A. Sai Balaji ◽  
K. Kalaichelvan

Non-Asbestos organic composite friction materials are increasingly used in automotive brake disc pad applications. The present paper deals with the role of various organic fibers Kevlar, Acrylic fibers and the Rock fiber namely the Lapinus fiber on the fade and recovery behavior of friction composites. Three different friction composites were developed with same formulation varying only the percentage of Kevlar, Acrylic and lapinus fibers within the formulation. The formulations containing 13.5% of these fibers were developed as brake pads and designated as NA01, NA02 and NA03 respectively. The chemical and Mechanical properties are tested as per Indian Industrial standards.. The composites are then tested for the tribo-performance using Chase Testing Machine following SAE J661a standards. The fade µ, recovery µ and wear are significantly influenced by the amount and type of fiber combinations. Also the TGA reveals the degradation temperature of these fibers. Composite NA 03 containing Kevlar and lapinus combination is found to have good tribo performance. Worn surface analysis by SEM has proved to be useful in understanding the wear behavior of the composites.


2020 ◽  
Vol 6 (12) ◽  
pp. 1265d2 ◽  
Author(s):  
F M Firouz ◽  
E Mohamed ◽  
A Lotfy ◽  
A Daoud ◽  
M T Abou El-Khair

Atmosphere ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 621 ◽  
Author(s):  
Senad Dizdar ◽  
Yezhe Lyu ◽  
Conny Lampa ◽  
Ulf Olofsson

Airborne wear particle emission has been investigated in a pin-on-disc tribometer equipped with particle analysis equipment. The pins are cut out from commercial powder metallurgy automotive brake pads as with and without copper content. The discs are cut out from a commercial grey cast iron automotive brake disc as cut out and as in addition to a laser cladded with a powder mix of Ni-self fluxing alloy + 60% spheroidized fused tungsten carbide and then fine-ground. Dry sliding wear testing runs under a contact pressure of 0.6 MPa, sliding velocity of 2 m/s and a total sliding distance of 14,400 m. The test results show both wear and particle emission improvement by using laser cladded discs. The laser cladded discs in comparison to the reference grey cast iron discs do not alter pin wear substantially but achieves halved mass loss and quartered specific wear. Comparing in the same way, the friction coefficient increases from 0.5 to 0.6, and the particle number concentration decreases from over 100 to some 70 (1/cm3) and the partition of particles below 7 µm is approximately halved.


Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 377 ◽  
Author(s):  
Wanyang Li ◽  
Xuefeng Yang ◽  
Shouren Wang ◽  
Jupeng Xiao ◽  
Qimin Hou

This article reviews the current status of automotive brake disc research and the prospects for future research. At present, the research of brake disc performance mainly includes thermal conductivity, thermal fatigue resistance, wear resistance, and brake noise. It is found that a new alloy composite, heat treatment process, ceramic composite, new structure, and new materials are emerging. At the same time, it was found that ceramic and resin were used as the matrix, fiber materials were used as reinforcements to prepare brake discs, the addition of new fillers and the study of special reinforcement materials have become new hotspots in the study of brake discs. In the future development, carbon-fiber ceramic brake discs may become the main research focus of brake discs.


2006 ◽  
Vol 385-386 ◽  
pp. 604-606 ◽  
Author(s):  
Maurice I. Ripley ◽  
Oliver Kirstein

2021 ◽  
Author(s):  
Costel FLOREA ◽  
Costica BEJINARIU ◽  
Nicanor CIMPOESU ◽  
Ramona CIMPOESU

The book reviews the current status of vehicle brake disc materials and technology. Topics covered include friction materials for braking systems, material characterization, mechanical properties, corrosion processes and methods for disc break investigations. The book references 158 original resources with their direct web links for in-depth reading.


2016 ◽  
Vol 254 ◽  
pp. 91-96
Author(s):  
Andrei Lucian Crăciun ◽  
Camelia Pinca-Bretotean

The automotive brake disc is a device for slowing or stopping the motion of a wheel while it runs at a certain speed. The widely used brake disc material is cast iron which consumes much fuel due to its high specific gravity. To reduce automobile weight and improve fuel efficiency, the automotive industry has increased the use of aluminium in light vehicles in recent years. The aim of this paper is to develop new natural fibre reinforced aluminium composite for automotive brake disc.Different laboratory formulations were prepared with varying coconut fibre, friction modifiers, abrasive material and solid lubrificant using powder mettallurgy techique for the developement of new natural fibre reinforce aluminiu composites. The analysis led that natural coconut fibre is a potential candidate fiber or filler material for the automotive brake disc.


2011 ◽  
Vol 55-57 ◽  
pp. 1397-1402
Author(s):  
Fa Zong Li ◽  
Ru Fu Hu ◽  
Zhong Hua Cui

The automobile braking will generate a lot of friction heat; the friction heat can reduce the brake performance and affect the safety of the automobile. This article analyzed the mechanism that heat generated by brake friction, established the mathematical model of automotive brake friction heat, and analyzed the influencing factor of braking friction heat through model parameters. Meanwhile, the finite element model of automobile brake disc is built; the brake friction heat is analyzed by the finite element thermal thermodynamics, the formation process of the friction heat, the change situation of friction heat and the deformation of brake disc are obtained. The effect of friction heat on the brake performance is analyzed; the research will provide theoretical guidance for the design of automotive brake discs.


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