Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 22nd International ESAFORM Conference on Material Forming |
| Subtitle of host publication | ESAFORM 2019 |
| Editors | Pedro Arrazola, Eneko Saenz de Argandona, Nagore Otegi, Joseba Mendiguren, Mikel Saez de Buruaga, Aitor Madariaga, Lander Galdos |
| Number of pages | 7 |
| ISBN (electronic) | 9780735418479 |
| Publication status | Published - 2 Jul 2019 |
| Event | 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019 - Vitoria-Gasteiz, Spain Duration: 8 May 2019 → 10 May 2019 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Number | 1 |
| Volume | 2113 |
| ISSN (Print) | 0094-243X |
| ISSN (electronic) | 1551-7616 |
Abstract
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Environmental Science(all)
- Ecology
- Agricultural and Biological Sciences(all)
- Plant Science
- Physics and Astronomy(all)
- General Physics and Astronomy
- Environmental Science(all)
- Nature and Landscape Conservation
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Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019. ed. / Pedro Arrazola; Eneko Saenz de Argandona; Nagore Otegi; Joseba Mendiguren; Mikel Saez de Buruaga; Aitor Madariaga; Lander Galdos. 2019. 040024 (AIP Conference Proceedings; Vol. 2113, No. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - A Micro-Thermo-Mechanical Model for a Tailored Formed Joining Zone Deformed by Die Forging
AU - Baldrich, Martina
AU - Aldakheel, Fadi
AU - Beese, Steffen
AU - Löhnert, Stefan
AU - Wriggers, Peter
N1 - Funding information: The results presented here were obtained within the Collaborative Research Centre 1153 ”Process chain to produce hybrid high performance components by Tailored Forming” in the subproject C4 - project number 252662854. The authors would like to thank the German Research Foundation (DFG) for the financial and organisational support of this project.
PY - 2019/7/2
Y1 - 2019/7/2
N2 - In order to investigate new methodologies to produce light weight and load-adjusted hybrid solid components, a process chain using the technique of Tailored Forming is developed. Hereby, the two materials aluminium and steel are joined before being formed to a hybrid bearing bushing. A significant drawback of this technique is the weakened joining zone. This is due to the differences of material properties and the formation of an intermetallic phase at the joined zone, resulting in high stresses during the forming process that might lead to damage and failure. To achieve a high mechanical strength of the hybrid solid component, it is important to evaluate the sensitivity of different process parameters and to accurately adjust the material behaviour of the joining zone. Because of the strong dependence of the effective, macroscopic material behaviour on the thermomechanical influences at the microscopic level, the polycrystalline joining zone is investigated on the microscopic length scale. Material models are developed for each of the constituents steel and aluminium using the framework of dislocation density based crystal plasticity as well as an elastic material model for the brittle intermetallic phase. For the microscopic simulation of the die forging, a volume element of the joining zone is generated capturing the characteristic morphology of the different grains including their size distribution, non-convex shapes, elongation and volume fractions as well as the stochastic orientation of the grains. The microscopic boundary value problem is chosen to meet the macroscopically applied loads during the die forging of the bearing bushing.
AB - In order to investigate new methodologies to produce light weight and load-adjusted hybrid solid components, a process chain using the technique of Tailored Forming is developed. Hereby, the two materials aluminium and steel are joined before being formed to a hybrid bearing bushing. A significant drawback of this technique is the weakened joining zone. This is due to the differences of material properties and the formation of an intermetallic phase at the joined zone, resulting in high stresses during the forming process that might lead to damage and failure. To achieve a high mechanical strength of the hybrid solid component, it is important to evaluate the sensitivity of different process parameters and to accurately adjust the material behaviour of the joining zone. Because of the strong dependence of the effective, macroscopic material behaviour on the thermomechanical influences at the microscopic level, the polycrystalline joining zone is investigated on the microscopic length scale. Material models are developed for each of the constituents steel and aluminium using the framework of dislocation density based crystal plasticity as well as an elastic material model for the brittle intermetallic phase. For the microscopic simulation of the die forging, a volume element of the joining zone is generated capturing the characteristic morphology of the different grains including their size distribution, non-convex shapes, elongation and volume fractions as well as the stochastic orientation of the grains. The microscopic boundary value problem is chosen to meet the macroscopically applied loads during the die forging of the bearing bushing.
UR - http://www.scopus.com/inward/record.url?scp=85068864756&partnerID=8YFLogxK
U2 - 10.1063/1.5112558
DO - 10.1063/1.5112558
M3 - Conference contribution
AN - SCOPUS:85068864756
T3 - AIP Conference Proceedings
BT - Proceedings of the 22nd International ESAFORM Conference on Material Forming
A2 - Arrazola, Pedro
A2 - Saenz de Argandona, Eneko
A2 - Otegi, Nagore
A2 - Mendiguren, Joseba
A2 - Saez de Buruaga, Mikel
A2 - Madariaga, Aitor
A2 - Galdos, Lander
T2 - 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019
Y2 - 8 May 2019 through 10 May 2019
ER -