Optimization of Mixing Conditions on the Physical and Tribological Properties of Brake Pads

Rupiyawet, Kasidet; Kaewlob, Kritsana; Sujaridworakun, Pornapa; Buggakupta, Wantanee

doi:10.4028/www.scientific.net/kem.824.67

Cited by 7 publications

(13 citation statements)

References 8 publications

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“…For mixing step, it is, usually, carried out with dry constituents (dry mixing) and according to one sequence or multi-sequences. Typically, for multi-sequences mixing, fibre materials are first loaded followed by other ingredients [80]. Typical duration can vary between 5 and 15 min [50].…”

Section: Global Process Of Manufacturingmentioning

confidence: 99%

“…In literature, there is a lack of studies dealing with a detailed description of cold-moulding stage. They only indicated the pressure value used for this step, such as 11.77 MPa [80], 15–17 MPa [55], 20 MPa [60,62], and 23 MPa [58]. They did not try to study the impact of the variation of this pressure in final distribution of particles, for example.…”

Section: Global Process Of Manufacturingmentioning

confidence: 99%

“…The loading volume, below the recommended value (80% of the total volume of the mixer as maximum value) ensuring a well dispersion and mixing of all constituents, doesn't affect the friction coefficient but wear rate and bulk density of mixture are sensitive to this parameter. [80].…”

Section: Impact Of Manufacturing Process Parameters On Properties And...mentioning

confidence: 99%

See 2 more Smart Citations

Braking performance of friction materials: a review of manufacturing process impact and future trends

Hentati

Makni

Elleuch

2023

Tribology - Materials, Surfaces & Interfaces

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The brake friction materials are composite materials with multi-ingredient systems which induce a complex formulation. This complexity is also the result of the manufacturing parameters effects, such as mixture sequence and duration, moulding pressure, time, temperature and heat treatment time. Therefore, heterogeneity is induced as well in the characteristics (microstructure, density, etc.) as in the behaviour (mechanical, tribological, dynamic, etc.). Despite the study of the effect of manufacturing parameters on the friction material behaviour, the synergistic effect between the heterogeneity and the braking performance is still not well reported. This paper strives to eliminate the cloud of uncertainty of the role of manufacturing parameters on the friction material performances by providing most used process of elaboration, and most required properties for contemporary brake system. Innovation in brake discs and pad manufacturing by optimized algorithms, prediction approaches, and 3D printing process is presented as innovative methods to improve braking materials performance.

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Section: Global Process Of Manufacturingmentioning

confidence: 99%

Section: Global Process Of Manufacturingmentioning

confidence: 99%

See 1 more Smart Citation

Braking performance of friction materials: a review of manufacturing process impact and future trends

Hentati

Makni

Elleuch

2023

Tribology - Materials, Surfaces & Interfaces

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“…However, the impact of this step parameters on microstructural, thermo-physical and mechanical properties and tribological behaviour of friction materials remains not understood. Indeed, no correlation were revealed between the resulting microstructure, properties and performances of brake materials [18].…”

Section: Introductionmentioning

confidence: 96%

Organic Brake Friction Composite Materials: Impact of Mixing Duration on Microstructure, Properties, Tribological Behavior and Wear Resistance

Makni¹,

Cristol²,

Elleuch³

et al. 2022

Preprint

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The lack of knowledge on the link between the manufacturing process and performances constitutes a major issue of brake lining development. This study focuses on the effect of mixing duration on properties and tribological behavior of organic friction composite materials. The adopted methodology is based on efficient simplified formulations to limit synergic effects by the reduction of number and size distribution of constituents. Microstructural characteristics are analyzed and correlated to thermo physical and mechanical properties. Wear mechanisms and tribological behavior are studied in relation with the given microstructure and material properties. In the elaboration process, mixing duration has an impact on particle distribution and fibre arrangement. Distribution and size of fibre entanglements are found to cluster carbonaceous particles, which creates bulk thermal bridges improving thermal conductivity. Moreover, rockwool fibre arrangements affect density, porosity and thermo-physical properties. In addition, mixing duration disrupts cohesion of fibre bundles with the matrix, affecting compressive modulus and wear behaviour. This microstructural defect fosters an abundant third-body source flow, which results in a high wear flow. Porosities induced by fibre entanglements, presenting large and irregular size and distribution on the friction surface, lead to a low wear resistance and change the stability of friction.

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“…It was discovered that a combination of some composite ad-ditives offered a positive synergistic property that meets major requirements for friction material [8,13,14]. These composite materials have been categorized into metallic, semi-metallic, and non-metallic material, and most used to produce friction materials for many decades [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and the effect of oil absorption on tribological properties of carbon-based brake pad material

2021

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This research focuses on the mechanical and effect of oil absorption on the tribological properties of carbon-based brake pad material (CBP). Carbon-based materials, including those at a nanosize, are combined for developed brake pad material. The mechanical properties related to wear properties such as compression strength, stiffness, hardness, and absorption properties were determined. The effect of oil absorption on the tribological properties of carbon-based materials was investigated. The obtained properties are compared with that of a ceramic-made brake pad (commercial). The experimental results show that the mechanical and absorption properties of the developed brake pad material varied with the combination and quantity of additives used to develop each brake pad material. CBP material offered higher performance than ceramic-made brake pads. The CBP material showed a higher shear strength of about 110%, 51% enhanced compressive strength, 35% greater modulus, comparative statistical hardness, 98% lesser water intake, and 97% oil absorption rate than ceramic made brake pad. The tribological properties of friction material after soaked in oil proved that absorption properties affect tribological properties of brake pads, which can be attributed to the oil content in the material system. The effect of oil uptakes on wear rate and friction of the commercial brake pad was higher than CBP materials, implying that the loading of carbon-based materials is a viable way to reduce absorption rate, which helps in increasing brake pad performance. The improved properties are suggestive of materials combinations that may be used to develop brake pad materials.

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Optimization of Mixing Conditions on the Physical and Tribological Properties of Brake Pads

Cited by 7 publications

References 8 publications

Braking performance of friction materials: a review of manufacturing process impact and future trends

Braking performance of friction materials: a review of manufacturing process impact and future trends

Organic Brake Friction Composite Materials: Impact of Mixing Duration on Microstructure, Properties, Tribological Behavior and Wear Resistance

Mechanical and the effect of oil absorption on tribological properties of carbon-based brake pad material

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