Details
| Originalsprache | Englisch |
|---|---|
| Seitenumfang | 15 |
| Fachzeitschrift | Machining science and technology |
| Jahrgang | 29 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 31 Jan. 2025 |
Abstract
In order to improve patient care, it is necessary to increase the lifetime of double modular hip endoprostheses with tapered junctions. One approach to increasing the lifetime of components is to adjust the residual stress state to the load. Therefore, this study investigates the influence of process parameters and the effect of their interaction on the residual stresses of outer tapers manufactured of Ti-6Al-4V. Generally, compressive residual stresses are present after turning. The process parameters cutting speed and feed have an influence on the circumferential and axial residual stresses. The feed significantly influences the residual stresses in the axial direction, while cutting speed affects the residual stresses in the circumferential direction. The depth of cut has no significant effect on the residual stresses in either direction. With increasing cutting speed, the residual stress state in the circumferential direction is shifted toward tensile residual stresses. This can be explained by the decreasing mechanical load on the subsurface and the predominant influence of the thermal effect. In the axial direction, the compressive residual stresses increase with increasing feed. Due to the low thermal conductivity of titanium, the thermal influence presumably predominates in the near-surface area for the analyzed process parameters.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Ingenieurwesen (insg.)
- Maschinenbau
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
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in: Machining science and technology, Jahrgang 29, Nr. 1, 31.01.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Turning induced residual stresses in Ti-6Al-4V dual modular hip endoprostheses
AU - Denkena, Berend
AU - Bergmann, Benjamin
AU - Prasanthan, Vannila
AU - Legutko, Beate
N1 - Publisher Copyright: © 2025 The Author(s). Published with license by Taylor & Francis Group, LLC.
PY - 2025/1/31
Y1 - 2025/1/31
N2 - In order to improve patient care, it is necessary to increase the lifetime of double modular hip endoprostheses with tapered junctions. One approach to increasing the lifetime of components is to adjust the residual stress state to the load. Therefore, this study investigates the influence of process parameters and the effect of their interaction on the residual stresses of outer tapers manufactured of Ti-6Al-4V. Generally, compressive residual stresses are present after turning. The process parameters cutting speed and feed have an influence on the circumferential and axial residual stresses. The feed significantly influences the residual stresses in the axial direction, while cutting speed affects the residual stresses in the circumferential direction. The depth of cut has no significant effect on the residual stresses in either direction. With increasing cutting speed, the residual stress state in the circumferential direction is shifted toward tensile residual stresses. This can be explained by the decreasing mechanical load on the subsurface and the predominant influence of the thermal effect. In the axial direction, the compressive residual stresses increase with increasing feed. Due to the low thermal conductivity of titanium, the thermal influence presumably predominates in the near-surface area for the analyzed process parameters.
AB - In order to improve patient care, it is necessary to increase the lifetime of double modular hip endoprostheses with tapered junctions. One approach to increasing the lifetime of components is to adjust the residual stress state to the load. Therefore, this study investigates the influence of process parameters and the effect of their interaction on the residual stresses of outer tapers manufactured of Ti-6Al-4V. Generally, compressive residual stresses are present after turning. The process parameters cutting speed and feed have an influence on the circumferential and axial residual stresses. The feed significantly influences the residual stresses in the axial direction, while cutting speed affects the residual stresses in the circumferential direction. The depth of cut has no significant effect on the residual stresses in either direction. With increasing cutting speed, the residual stress state in the circumferential direction is shifted toward tensile residual stresses. This can be explained by the decreasing mechanical load on the subsurface and the predominant influence of the thermal effect. In the axial direction, the compressive residual stresses increase with increasing feed. Due to the low thermal conductivity of titanium, the thermal influence presumably predominates in the near-surface area for the analyzed process parameters.
KW - Load-adapted manufacturing
KW - modular hip endoprostheses
KW - residual stresses
KW - tapered junction
UR - http://www.scopus.com/inward/record.url?scp=85216642081&partnerID=8YFLogxK
U2 - 10.1080/10910344.2025.2456236
DO - 10.1080/10910344.2025.2456236
M3 - Article
AN - SCOPUS:85216642081
VL - 29
JO - Machining science and technology
JF - Machining science and technology
SN - 1091-0344
IS - 1
ER -