Laser Cladding Treatment for Refurbishing Disc Brake Rotors: Environmental and Tribological Analysis

Olofsson, Ulf,1962-KTH,Tribologi,KTH Royal Institute of Technology, Stockholm, Sweden (författare)

Laser Cladding Treatment for Refurbishing Disc Brake Rotors : Environmental and Tribological Analysis

QC 20210519
In this study, grey cast iron disc brake rotors are refurbished by adding a surface layer through laser cladding. Current methods to deal with replaced rotors mainly include remelting, with a minority fraction disposed in landfill. Both approaches result in a huge waste of resources and an increase in CO2 footprint. From a sustainable point of view, this study aims to evaluate the feasibility of refurbishing brake rotors by a combined environmental and tribological performance approach. A streamlined life cycle assessment is conducted to compare the environmental impacts between producing virgin grey cast iron brake rotors and refurbishing replaced brake rotors by laser cladding. It turns out that the energy consumption and CO2 footprint of the laser cladding refurbished brake rotors are 80% and 90% less than the virgin brake rotors. The results show that the refurbished brake rotor yields higher friction compared to the original cast iron utilizing the same pad material. The wear and particle emissions of the disc brake contact are in this study higher for the laser-cladded one compared to the original cast iron one.

Lyu, Yezhe,1987-KTH,Tribologi,Maskinkonstruktion (Avd.),KTH Royal Institute of Technology, Stockholm, Sweden(Swepub:lu)ye6106ly (författare)
Hedlund-Åström, Anna,1957-KTH,Maskinelement,KTH Royal Institute of Technology, Stockholm, Sweden(Swepub:kth)u15m12uj (författare)
Wahlström, Jens,PhD/Docent,1979-Lund University,Lunds universitet,KTH,Maskinelement,KTH Royal Institute of Technology, Stockholm, Sweden; Lund University, Lund, Sweden,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Machine Elements,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)je3808wa (författare)
Dizdar, SenadKTH,Maskinkonstruktion (Avd.),KTH Royal Institute of Technology, Stockholm, Sweden(Swepub:hh)sendiz (författare)
Nogueira, Ana Paula GomesUniv Trento, Dept Ind Engn, Trento, Italy.,University of Trento, Trento, Italy (författare)
Gialanella, StefanoUniv Trento, Dept Ind Engn, Trento, Italy.,University of Trento, Trento, Italy (författare)
KTHTribologi (creator_code:org_t)

Av författaren/redakt...: Olofsson, Ulf, 1 ...; Lyu, Yezhe, 1987 ...; Hedlund-Åström, ...; Wahlström, Jens, ...; Dizdar, Senad; Nogueira, Ana Pa ...; visa fler...; Gialanella, Stef ...; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Maskinteknik; och Tribologi

Av lärosätet: Kungliga Tekniska Högskolan; Högskolan i Halmstad; Lunds universitet

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