Details
| Original language | English |
|---|---|
| Pages (from-to) | 13-17 |
| Number of pages | 5 |
| Journal | Procedia CIRP |
| Volume | 123 |
| Early online date | 15 Jun 2014 |
| Publication status | Published - 2024 |
| Event | 7th CIRP Conference on Surface Integrity, CSI 2024 - Bremen, Germany Duration: 15 May 2024 → 17 May 2024 |
Abstract
The deep rolling process can influence the surface and subsurface of hardened steels, such as the bearing steel AISI 52100, due to mechanical loading and elastoplastic deformation. By intentionally adjusting the surface and subsurface properties, the fatigue life of bearing inner rings can be increased. This is among others attributed to the strengthening of surface and subsurface. Residual stresses induced by deep rolling and modifications of the material microstructure also contribute to this effect. In the investigations presented the deep rolling process parameters of rolling pressure, overlap ratio, and ball diameter were specifically selected based on previous works. Fatigue life investigations were conducted on honed and deep rolled bearing inner rings to enhance the understanding of failure mechanisms and to quantify the influence of the deep rolling process on fatigue life. It was found that the deep rolled bearing inner rings exhibit higher compressive residual stresses in the subsurface than honed rings and also showed longer fatigue life under rolling loads. Optical analyses of bearing rings that failed due to fatigue were performed to detect the failure mechanisms. The tested bearings showed classical fatigue, where cracking is initiated below the surface and propagates to the surface under further stress. Residual stresses can influence both the crack initiation and propagation.
Keywords
- bearing rings, deep rolling, lifetime analysis, residual stress, surface integrity
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 123, 2024, p. 13-17.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Fatigue life analysis of deep rolled bearing inner rings
AU - Breidenstein, Bernd
AU - Poll, Gerhard
AU - Pape, Florian
AU - Bergmann, Benjamin
AU - Dechant, Simon
AU - Nordmeyer, Henke
N1 - Publisher Copyright: © 2024 The Authors. Published by Elsevier B.V.
PY - 2024
Y1 - 2024
N2 - The deep rolling process can influence the surface and subsurface of hardened steels, such as the bearing steel AISI 52100, due to mechanical loading and elastoplastic deformation. By intentionally adjusting the surface and subsurface properties, the fatigue life of bearing inner rings can be increased. This is among others attributed to the strengthening of surface and subsurface. Residual stresses induced by deep rolling and modifications of the material microstructure also contribute to this effect. In the investigations presented the deep rolling process parameters of rolling pressure, overlap ratio, and ball diameter were specifically selected based on previous works. Fatigue life investigations were conducted on honed and deep rolled bearing inner rings to enhance the understanding of failure mechanisms and to quantify the influence of the deep rolling process on fatigue life. It was found that the deep rolled bearing inner rings exhibit higher compressive residual stresses in the subsurface than honed rings and also showed longer fatigue life under rolling loads. Optical analyses of bearing rings that failed due to fatigue were performed to detect the failure mechanisms. The tested bearings showed classical fatigue, where cracking is initiated below the surface and propagates to the surface under further stress. Residual stresses can influence both the crack initiation and propagation.
AB - The deep rolling process can influence the surface and subsurface of hardened steels, such as the bearing steel AISI 52100, due to mechanical loading and elastoplastic deformation. By intentionally adjusting the surface and subsurface properties, the fatigue life of bearing inner rings can be increased. This is among others attributed to the strengthening of surface and subsurface. Residual stresses induced by deep rolling and modifications of the material microstructure also contribute to this effect. In the investigations presented the deep rolling process parameters of rolling pressure, overlap ratio, and ball diameter were specifically selected based on previous works. Fatigue life investigations were conducted on honed and deep rolled bearing inner rings to enhance the understanding of failure mechanisms and to quantify the influence of the deep rolling process on fatigue life. It was found that the deep rolled bearing inner rings exhibit higher compressive residual stresses in the subsurface than honed rings and also showed longer fatigue life under rolling loads. Optical analyses of bearing rings that failed due to fatigue were performed to detect the failure mechanisms. The tested bearings showed classical fatigue, where cracking is initiated below the surface and propagates to the surface under further stress. Residual stresses can influence both the crack initiation and propagation.
KW - bearing rings
KW - deep rolling
KW - lifetime analysis
KW - residual stress
KW - surface integrity
UR - http://www.scopus.com/inward/record.url?scp=85196821310&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2024.05.005
DO - 10.1016/j.procir.2024.05.005
M3 - Conference article
AN - SCOPUS:85196821310
VL - 123
SP - 13
EP - 17
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
T2 - 7th CIRP Conference on Surface Integrity, CSI 2024
Y2 - 15 May 2024 through 17 May 2024
ER -