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Efficiency and pitting resistance of mechanochemically finished gears

Tu, Minghui ; Hjelm, Rikard LU ; Bard, Lucas ; Bergseth, Ellen ; Everlid, Linus and Victoria Rodríguez, Ignacio (2025) In Results in Engineering 28.
Abstract

To improve gearset performance, gears can be subjected to surface treatments. One possible surface treatment is TCG, Triboconditioning for Complex Geometries. This paper investigates efficiency and pitting resistance of two types of TCG treatments on powder-sintered gears, compared to an untreated reference. Experimental testing is performed in an FZG gear test rig with an efficiency and a pitting setup, respectively. Efficiency is calculated from the measured outside torque, and pitting evolution is monitored by scanning the tooth surface after each load cycle. The results indicate that TCG increases efficiency. The results concerning pitting resistance are inconclusive with previous studies and to better understand the mechanisms... (More)

To improve gearset performance, gears can be subjected to surface treatments. One possible surface treatment is TCG, Triboconditioning for Complex Geometries. This paper investigates efficiency and pitting resistance of two types of TCG treatments on powder-sintered gears, compared to an untreated reference. Experimental testing is performed in an FZG gear test rig with an efficiency and a pitting setup, respectively. Efficiency is calculated from the measured outside torque, and pitting evolution is monitored by scanning the tooth surface after each load cycle. The results indicate that TCG increases efficiency. The results concerning pitting resistance are inconclusive with previous studies and to better understand the mechanisms involved, further tests are suggested.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Efficiency, Pitting resistance, Powder-sintered gears, TCG
in
Results in Engineering
volume
28
article number
107286
publisher
Elsevier
external identifiers
  • scopus:105015998206
ISSN
2590-1230
DOI
10.1016/j.rineng.2025.107286
language
English
LU publication?
yes
id
d3800ec4-9c21-44f1-bf59-fe3fe561a2ce
date added to LUP
2025-10-02 10:22:47
date last changed
2025-10-14 11:34:29
@article{d3800ec4-9c21-44f1-bf59-fe3fe561a2ce,
  abstract     = {{<p>To improve gearset performance, gears can be subjected to surface treatments. One possible surface treatment is TCG, Triboconditioning for Complex Geometries. This paper investigates efficiency and pitting resistance of two types of TCG treatments on powder-sintered gears, compared to an untreated reference. Experimental testing is performed in an FZG gear test rig with an efficiency and a pitting setup, respectively. Efficiency is calculated from the measured outside torque, and pitting evolution is monitored by scanning the tooth surface after each load cycle. The results indicate that TCG increases efficiency. The results concerning pitting resistance are inconclusive with previous studies and to better understand the mechanisms involved, further tests are suggested.</p>}},
  author       = {{Tu, Minghui and Hjelm, Rikard and Bard, Lucas and Bergseth, Ellen and Everlid, Linus and Victoria Rodríguez, Ignacio}},
  issn         = {{2590-1230}},
  keywords     = {{Efficiency; Pitting resistance; Powder-sintered gears; TCG}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Results in Engineering}},
  title        = {{Efficiency and pitting resistance of mechanochemically finished gears}},
  url          = {{http://dx.doi.org/10.1016/j.rineng.2025.107286}},
  doi          = {{10.1016/j.rineng.2025.107286}},
  volume       = {{28}},
  year         = {{2025}},
}