Thermomechanical processing for creating bi-metal bearing bushings

verfasst von: Robert Goldstein, Bernd Arno Behrens, Anna Chugreeva
Abstract: Over the last years, multi-material design aiming on manufacturing of application-optimized technical components has been gaining in importance. In this context, combination of steel and aluminum offers an effective solution for implementation of lightweight concepts due to its high strength-to-weight ratio. The steel can be placed in high- stressed . areas, where high performance properties are required, while the aluminum can be used for the rest of the. part, in order to save the component total weight. Due to dissimilar material properties of steel and aluminum, the process design for bi-metal forming is very challenging and requires a process-specific heating strategy, which development is in focus of this paper. The current study involves the potential for creating bi-metal bearing bushings consisting of steel 20MnCr5 and aluminum AA-6082 by closed-die-forging. Firstly, an overview of modem technologies for bi-metal forming is given. In following, the scientific issues and demanding challenges within this study- Are described for both, heating and subsequent forming. Results of the initial computer modeling and experimental validation of the heating behavior arc presented. Subsequently, the experimental forging tests were conducted with achieved temperature gradients. The forged parts were metallographically investigated to examine the resulting quality of the joining zone. Based on the obtained findings, the optimization proposals for the entire process are discussed.
Organisationseinheit(en): Institut für Umformtechnik und Umformmaschinen
Externe Organisation(en): Fluxtrol Inc.
Typ: Aufsatz in Konferenzband
Seiten: 15-21
Anzahl der Seiten: 7
Publikationsdatum: 2018
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Philosophie, Fahrzeugbau, Physik der kondensierten Materie, Oberflächen, Beschichtungen und Folien
: Details im Forschungsportal „Research@Leibniz University“

BibTeX

@inproceedings{96ba5aa0a1634ddcad6f0f3b17b699b6,
title = "Thermomechanical processing for creating bi-metal bearing bushings",
abstract = "Over the last years, multi-material design aiming on manufacturing of application-optimized technical components has been gaining in importance. In this context, combination of steel and aluminum offers an effective solution for implementation of lightweight concepts due to its high strength-to-weight ratio. The steel can be placed in high- stressed . areas, where high performance properties are required, while the aluminum can be used for the rest of the. part, in order to save the component total weight. Due to dissimilar material properties of steel and aluminum, the process design for bi-metal forming is very challenging and requires a process-specific heating strategy, which development is in focus of this paper. The current study involves the potential for creating bi-metal bearing bushings consisting of steel 20MnCr5 and aluminum AA-6082 by closed-die-forging. Firstly, an overview of modem technologies for bi-metal forming is given. In following, the scientific issues and demanding challenges within this study- Are described for both, heating and subsequent forming. Results of the initial computer modeling and experimental validation of the heating behavior arc presented. Subsequently, the experimental forging tests were conducted with achieved temperature gradients. The forged parts were metallographically investigated to examine the resulting quality of the joining zone. Based on the obtained findings, the optimization proposals for the entire process are discussed.",
author = "Robert Goldstein and Behrens, {Bernd Arno} and Anna Chugreeva",
year = "2018",
language = "English",
series = "Thermal Processing in Motion 2018 - Including the International Conference on Heat Treatment and Surface Engineering in Automotive Applications",
publisher = "ASM International",
pages = "15--21",
editor = "Robert Goldstein and Mackenzie, {D. Scott} and Lesley Frame and Lynn Ferguson and Dave Guisbert",
booktitle = "Thermal Processing in Motion 2018 - Including the International Conference on Heat Treatment and Surface Engineering in Automotive Applications",
address = "United States",
note = "Thermal Processing in Motion 2018 - Including the 4th International Conference on Heat Treatment and Surface Engineering in Automotive Applications ; Conference date: 05-06-2018 Through 07-06-2018",
}