Details
| Original language | English |
|---|---|
| Title of host publication | Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity |
| Editors | Glenn Daehn, Jian Cao, Brad Kinsey, Erman Tekkaya, Anupam Vivek, Yoshinori Yoshida |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 1107-1119 |
| Number of pages | 13 |
| ISBN (electronic) | 9783030753818 |
| ISBN (print) | 9783030753801 |
| Publication status | Published - 2021 |
| Externally published | Yes |
| Event | 13th International Conference on the Technology of Plasticity, ICTP 2021 - Virtual, Online Duration: 25 Jul 2021 → 30 Jul 2021 |
Publication series
| Name | Minerals, Metals and Materials Series |
|---|---|
| ISSN (Print) | 2367-1181 |
| ISSN (electronic) | 2367-1696 |
Abstract
Multi-stage forging process chains are often used for the efficient production of complex geometries. Typically, these consist of homogeneous heating, one or more preform stages, and the final forging step. By inhomogeneously heated billets, the process chains can be simplified or shortened. This shall be achieved by setting various temperature fields within a billet, resulting in different yield stresses. These can influence the material flow, leading to easier production of complex parts. In this study, the influence of inhomogeneously heated billets on the forming process is investigated by means of FEA. For this purpose, two process chains including inhomogeneous heating and three homogeneously heated reference process chains are developed and compared. Each process chain is optimized until form filling and no defects occur. Target figures for the assessment are necessary forming force, the amount of material necessary to achieve form filling and die abrasion wear. For process chains with inhomogeneously heated billets, the results showed a small time window of about 5 s for a successful forming in terms of form filling. Forming forces and die abrasion wear increase for inhomogeneously heated billets due to higher initial flow stresses. However, the flash ratio decreases when billets are heated inhomogeneously. Depending on their size, inhomogeneously heated billets show up to 11.8% less flash than homogeneously heated billets. This shows a potential for the use of inhomogeneous heating to make forging processes more efficient. Subsequently, experimental tests will be carried out to verify the results of the simulations.
Keywords
- FEA, Forging, Inhomogeneous heating, Preform operation, Resource efficiency
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Mechanics of Materials
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
Sustainable Development Goals
Cite this
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Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. ed. / Glenn Daehn; Jian Cao; Brad Kinsey; Erman Tekkaya; Anupam Vivek; Yoshinori Yoshida. Springer Science and Business Media Deutschland GmbH, 2021. p. 1107-1119 (Minerals, Metals and Materials Series).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - FE-Based Investigation on the Influence of Inhomogeneously Heated Billets on Subsequent Forging Processes
AU - Jagodzinski, Arne
AU - Gerland, Hendrik
AU - Kriwall, Mareile
AU - Langner, Jan
AU - Stonis, Malte
AU - Behrens, Bernd Arno
N1 - Funding Information: Acknowledgments The research project “Use of different flow stresses for forming inhomogeneously heated billets” (BE 1691/212-1) was funded by the German Research Foundation (DFG). The authors thank the DFG for its support.Publisher
PY - 2021
Y1 - 2021
N2 - Multi-stage forging process chains are often used for the efficient production of complex geometries. Typically, these consist of homogeneous heating, one or more preform stages, and the final forging step. By inhomogeneously heated billets, the process chains can be simplified or shortened. This shall be achieved by setting various temperature fields within a billet, resulting in different yield stresses. These can influence the material flow, leading to easier production of complex parts. In this study, the influence of inhomogeneously heated billets on the forming process is investigated by means of FEA. For this purpose, two process chains including inhomogeneous heating and three homogeneously heated reference process chains are developed and compared. Each process chain is optimized until form filling and no defects occur. Target figures for the assessment are necessary forming force, the amount of material necessary to achieve form filling and die abrasion wear. For process chains with inhomogeneously heated billets, the results showed a small time window of about 5 s for a successful forming in terms of form filling. Forming forces and die abrasion wear increase for inhomogeneously heated billets due to higher initial flow stresses. However, the flash ratio decreases when billets are heated inhomogeneously. Depending on their size, inhomogeneously heated billets show up to 11.8% less flash than homogeneously heated billets. This shows a potential for the use of inhomogeneous heating to make forging processes more efficient. Subsequently, experimental tests will be carried out to verify the results of the simulations.
AB - Multi-stage forging process chains are often used for the efficient production of complex geometries. Typically, these consist of homogeneous heating, one or more preform stages, and the final forging step. By inhomogeneously heated billets, the process chains can be simplified or shortened. This shall be achieved by setting various temperature fields within a billet, resulting in different yield stresses. These can influence the material flow, leading to easier production of complex parts. In this study, the influence of inhomogeneously heated billets on the forming process is investigated by means of FEA. For this purpose, two process chains including inhomogeneous heating and three homogeneously heated reference process chains are developed and compared. Each process chain is optimized until form filling and no defects occur. Target figures for the assessment are necessary forming force, the amount of material necessary to achieve form filling and die abrasion wear. For process chains with inhomogeneously heated billets, the results showed a small time window of about 5 s for a successful forming in terms of form filling. Forming forces and die abrasion wear increase for inhomogeneously heated billets due to higher initial flow stresses. However, the flash ratio decreases when billets are heated inhomogeneously. Depending on their size, inhomogeneously heated billets show up to 11.8% less flash than homogeneously heated billets. This shows a potential for the use of inhomogeneous heating to make forging processes more efficient. Subsequently, experimental tests will be carried out to verify the results of the simulations.
KW - FEA
KW - Forging
KW - Inhomogeneous heating
KW - Preform operation
KW - Resource efficiency
UR - http://www.scopus.com/inward/record.url?scp=85112499430&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-75381-8_93
DO - 10.1007/978-3-030-75381-8_93
M3 - Conference contribution
AN - SCOPUS:85112499430
SN - 9783030753801
T3 - Minerals, Metals and Materials Series
SP - 1107
EP - 1119
BT - Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity
A2 - Daehn, Glenn
A2 - Cao, Jian
A2 - Kinsey, Brad
A2 - Tekkaya, Erman
A2 - Vivek, Anupam
A2 - Yoshida, Yoshinori
PB - Springer Science and Business Media Deutschland GmbH
T2 - 13th International Conference on the Technology of Plasticity, ICTP 2021
Y2 - 25 July 2021 through 30 July 2021
ER -