Carbidic Brake Rotor Surface Coating Applied by High-performance-laser Cladding

Rettig, Marc; Grochowicz, Jaroslaw; Käsgen, Klaus; Eaton, R. A.; Wank, Andreas; Hitzek, Alexander; Schmengler, Christian; Koß, Stephan; Voshage, Maximilian; Verpoort, C.; Weber, Thomas

doi:10.46720/eb2020-mds-025

Cited by 9 publications

(6 citation statements)

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“…Thus, tribology can show a vital role in brake emission. [85][86][87][88][89] Dust filters/collectors Air filters are designed to trap the majority of brake particles while vehicle is in motion and holds them in vehicle, which can be safely disposed while the vehicle goes for service. [90][91][92] Hence, it becomes imperative to have coordination among friction material manufacturers, brake manufacturers and vehicle manufacturers to solve the environmental issues and possible to move towards a green manufacturing design and practices.…”

Section: Autonomous Drivingmentioning

confidence: 99%

State of the art on challenges for friction material manufacturers – raw materials, regulations, environmental, and NVH aspects

Balaji

Katiyar

Arumugam

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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Friction materials have played a crucial role in safe movement of automobiles and in protection of human life. Enormous cost has incurred in validation of new developed brake pad, a critical safety component, as it involves a lot of inhouse testing along with field testing in different terrains. Further, with an unexpected pandemic and wars, creeping raw material price increases which is a major issue even though researchers have tried to develop innovative materials, which can perform multitasks. Moreover, a paradigm shift towards hybrid and electric vehicles required adjustments in design strategies, related to new friction materials for brakes. The regenerative braking mechanism has taken a major role in electric vehicles (EVs). Therefore, the friction pad is rarely used, which leads to rust/corrosion issues. In addition, the exhaust particles now pale in comparison to non-exhaust emissions. It is a newly identified challenge faced by friction industry as the brake pad wear is one of main contributors of non-exhaust emissions. Also, with no engine noise to cover, the silent nature of EVs creates noise and vibration issues in brake pad even more apparent. Hence, this paper has focused critically on challenges for friction material manufacturers in terms of regulations and raw materials followed by environmental issues and shift towards EVs and NVH requirement. Further, it has discussed with some possible suggestions to reduce the same.

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Section: Autonomous Drivingmentioning

confidence: 99%

State of the art on challenges for friction material manufacturers – raw materials, regulations, environmental, and NVH aspects

Balaji

Katiyar

Arumugam

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Because of the changed energy input, the powder particles already hit the substrate in a molten state, resulting in dense and metallurgically bonded coatings. This allows the process speed to be increased up to 500 m min -1 and the heat influence to be reduced by up to a factor of 100, depending on the material combination [11][12][13]. This leads to surface rates of up to 1000 cm 2 min -1 and application rates of up to 6 kg h -1 , depending on the material used.…”

Section: Coating Process and Parametersmentioning

confidence: 99%

“…For this reason, it has been applied more and more to increase the strength of Al-based alloys. The controllable heating of the powder particles in the EHLA process, in combination with the high cooling rates of 10 4 -10 6 K s -1 , make it possible to process SiC in an MMC with Fe-based alloys [13].…”

Section: Coating Process and Parametersmentioning

confidence: 99%

Extreme High‐Speed Laser Material Application‐Coated Carbide‐Reinforced Control Plates and Conventional Lead‐Based Plates in Axial Piston Machines

et al. 2022

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Hydraulic drive train technology is widely used in both mobile and stationary systems, when high forces or torques are applied. In hydraulic components, high load levels must be supported due to increasing pressure levels of the fluid. Conventionally, leaded brass is used right against steel, where the lead not only aids the manufacturing process but also provides good tribological properties, such as low friction over a wide range of speeds and pressures. Currently promising lead-free coatings using high-speed laser material deposition (EHLA) will be implemented in a state-of-the-art axial piston pump.

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“…When it comes to disc brakes, this is now becoming a very popular method for reducing the amount of particles formed and so according to the source, 27,28 it is stated that it reduces the concentration of formed particles by 90%, or according to, 29 reduces wear up to 75%. In addition to the above, the coated brake disc has some other advantages over uncoated discs, and that is the extension of the service life by 30% compared to uncoated discs, 29 corrosion protection, 26 increased coefficient of friction, [30][31][32] the possibility of reducing the wear of the brake pads, 33 a stable friction layer, but for everything previously, it is necessary to take into account the materials used as a coating. 32 When it comes to the coefficient of friction, it is necessary to take into account the materials used, bearing in mind the fact that it depends on how it will affect the value, because it can also have a negative impact.…”

Section: Brake Disc Coating Deposition Techniques and Applied Materialsmentioning

confidence: 99%

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

Vasiljević

Glišović

Stojаnović

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Wear of a friction pair of brake (brake disc and pads), in addition to reducing the active safety of vehicles, leads to the formation of particles that can affect the environment and human health. In addition to the technologies that are being developed for the collection of particles created by the wear of brakes during braking process, today new materials are being introduced, as well as various technologies for processing friction pairs with the aim of reducing brake wear and thus the formation of particles. Furthermore, today, technologies for coating (cladding) the friction surfaces of disc brakes with some materials are increasingly applied and researched, in order to reduce the wear intensity (wear rate) of disc brakes, i.e. the emission of particles created by wear of friction pairs. The aim of this paper is to analyse and review different deposition techniques and materials used for brake discs coatings, as well as the effect it has on the wear rate of friction pair. There are many coating deposition techniques, and special attention is paid to the technology of laser hardfacing of brake rotors.

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Carbidic Brake Rotor Surface Coating Applied by High-performance-laser Cladding

Cited by 9 publications

References 0 publications

State of the art on challenges for friction material manufacturers – raw materials, regulations, environmental, and NVH aspects

State of the art on challenges for friction material manufacturers – raw materials, regulations, environmental, and NVH aspects

Extreme High‐Speed Laser Material Application‐Coated Carbide‐Reinforced Control Plates and Conventional Lead‐Based Plates in Axial Piston Machines

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

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