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Modelling Induction Heating of Aluminium Sheets for Hot Stamping

Engineering proceedings, 2023-09, Vol.43 (1), p.26 [Peer Reviewed Journal]

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Title:
Modelling Induction Heating of Aluminium Sheets for Hot Stamping
Author: Alexandre Gariépy ; Guillaume D’Amours
Subjects: aluminium alloys ; hot stamping ; induction heating ; solution heat treatment
Is Part Of: Engineering proceedings, 2023-09, Vol.43 (1), p.26
Description: Hot forming of aluminium sheets enables the forming of complex shapes with high-strength alloys due to increased formability at elevated temperatures. A fast, uniform and accurate heating method is required to meet the narrow solution heat treatment window from 460 to 490 °C for AA7xxx alloys before forming. Heated plates and convection furnaces are commonly used in hot forming, but require large equipment and can have medium to long cycle times. Induction heating, which uses an alternating current in a coil surrounding the workpiece, could provide shorter heating times. However, induction heating requires a part-specific coil and can exhibit significant temperature gradients over the blank. Multi-physics electromagnetic and thermal simulation can be used as a design tool to help achieve the target temperature uniformity. In this study, induction heating of an irregular aluminium blank was modelled and validated with experimental data. Methods to improve the temperature uniformity were also tested numerically.
Publisher: MDPI AG
Language: English
Identifier: EISSN: 2673-4591
DOI: 10.3390/engproc2023043026
Source: Directory of Open Access Journals

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