Examination of controlled thermal radiation exchange for the production of tailored properties on press-hardened components
Alborz Reihani, Sebastian Heibel, Thomas Schweiker, Marion Merkleindownload PDF
Abstract. Through the development of furnace technologies and tool concepts, partial press hardening has become an established process in the automotive industry for setting tailored properties on press-hardened components. Tailored properties on press-hardened components offer the potential to improve crash performance as well as to facilitate downstream joining processes and mechanical treatments. One approach to adjust these properties through local pre-cooling is based on a special oven chamber with an integrated masking technology, called TemperBox®. The integrated mask protects the blank locally from incident heat radiation and simultaneously absorbs the blank’s own radiation. An important parameter during this process is the pre-cooling time in the TemperBox®. The pre-cooling time can influence the phase transformation and the component properties. Therefore, blanks made of the conventional press hardening steel 22MnB5 AS150 are partially precooled in the TemperBox® for different periods of time and the component properties are investigated on the basis of formed hat profiles. In addition, a simulation approach for calculating the heat radiation exchange with the finite element software LS-Dyna® is shown. Based on the simulative and experimental investigations, it is demonstrated that there is a dependency between pre-cooling time and the components properties.
Hot Stamping, Heat Treatment, Tailored Properties
Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Alborz Reihani, Sebastian Heibel, Thomas Schweiker, Marion Merklein, Examination of controlled thermal radiation exchange for the production of tailored properties on press-hardened components, Materials Research Proceedings, Vol. 25, pp 455-462, 2023
The article was published as article 56 of the book Sheet Metal 2023
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