Introducing Residual Stresses on Sheet Metals by Slide Hardening under Stress Superposition
Publikation: Beiträge in Zeitschriften › Konferenzaufsätze in Fachzeitschriften › Forschung › begutachtet
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Introducing Residual Stresses on Sheet Metals by Slide Hardening under Stress Superposition. / Lehmann, Jonas; Chen, Hui; Kruse, Moritz et al.
in: Key Engineering Materials, Jahrgang 883, 27.04.2021, S. 143-150.Publikation: Beiträge in Zeitschriften › Konferenzaufsätze in Fachzeitschriften › Forschung › begutachtet
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TY - JOUR
T1 - Introducing Residual Stresses on Sheet Metals by Slide Hardening under Stress Superposition
AU - Lehmann, Jonas
AU - Chen, Hui
AU - Kruse, Moritz
AU - Ben Khalifa, Noomane
N1 - Conference code: 19
PY - 2021/4/27
Y1 - 2021/4/27
N2 - The fatigue strength and product life of the components can be improved by introducing compressive residual stresses using mechanical surface treatment. Appling stress superposition is an option to be used in metal forming to reduce the process force. In this work experimental investigations to analyze the influence of stress superposition on residual stresses of sheet metal parts by a slide hardening process were carried out. The flat and elastically pre-bended specimens (i.e. stress-superimposed specimen) were processed with a slide diamond tool under different loading forces. The residual stress generated through the thickness of the sheet metal was similar for the flat and the pre-bended specimens. The superimposed stress by elastic bending of the sheet metal led to higher compressive residual stress compared to the flat specimen under the same loading force. Nevertheless, the contour of the pre-bended specimen showed more bulking compared to the flat specimen. The mechanical characteristics determined by hardness measurements showed no significant improvement when applying stress superposition.
AB - The fatigue strength and product life of the components can be improved by introducing compressive residual stresses using mechanical surface treatment. Appling stress superposition is an option to be used in metal forming to reduce the process force. In this work experimental investigations to analyze the influence of stress superposition on residual stresses of sheet metal parts by a slide hardening process were carried out. The flat and elastically pre-bended specimens (i.e. stress-superimposed specimen) were processed with a slide diamond tool under different loading forces. The residual stress generated through the thickness of the sheet metal was similar for the flat and the pre-bended specimens. The superimposed stress by elastic bending of the sheet metal led to higher compressive residual stress compared to the flat specimen under the same loading force. Nevertheless, the contour of the pre-bended specimen showed more bulking compared to the flat specimen. The mechanical characteristics determined by hardness measurements showed no significant improvement when applying stress superposition.
KW - Hardening
KW - Residual Stress
KW - Stress Superposition
KW - Engineering
KW - Hardening
KW - residual stress
KW - Stress superposition
UR - http://www.scopus.com/inward/record.url?scp=85120064558&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.883.143
DO - 10.4028/www.scientific.net/KEM.883.143
M3 - Conference article in journal
VL - 883
SP - 143
EP - 150
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
T2 - 19th International Conference on Sheet Metal - SHEMET 2021
Y2 - 29 March 2021 through 31 March 2021
ER -