Potentials of single stage induction heating for press hardening of steel blanks

verfasst von: B. Nacke, A. Dietrich
Abstract: Due to growing challenges regarding crash-performance, CO₂ emission as well as increasing demand for lightweight construction, hot metal forming of car body parts has risen to one of the most important technologies for saving weight of a car body. During hot forming shaped blanks of steel are heated and austenitized at around 950°C and subsequently quenched for martensitic formation. Currently the heating is realized in roller hearth furnaces which allow only a slow heating and, therefore, a limited production rate. Induction heating of the blanks offers a big potential to increase the production rate dramatically and also to improve the energy efficiency. Only due to the fact, that the heated blanks typically are already pre-shaped with holes and cut-outs induction heating becomes a very complex task. The paper compares different possible induction heating methods (longitudinal heating, transverse flux heating, single stage induction heating, hybrid heating by induction and conventional heating). For the case of single stage induction heating a detailed numerical and experimental investigation in the frame of a recently completed research project is presented.
Organisationseinheit(en): Institut für Elektroprozesstechnik
Typ: Aufsatz in Konferenzband
Band: 424
Publikationsdatum: 13.10.2018
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Werkstoffwissenschaften (insg.), Ingenieurwesen (insg.)
Ziele für nachhaltige Entwicklung: SDG 7 – Erschwingliche und saubere Energie
Elektronische Version(en): https://doi.org/10.1088/1757-899X/424/1/012058 (Zugang: Offen)

BibTeX

@inproceedings{274be3f7412b4353b557ff615ff0e192,
title = "Potentials of single stage induction heating for press hardening of steel blanks",
abstract = "Due to growing challenges regarding crash-performance, CO2 emission as well as increasing demand for lightweight construction, hot metal forming of car body parts has risen to one of the most important technologies for saving weight of a car body. During hot forming shaped blanks of steel are heated and austenitized at around 950°C and subsequently quenched for martensitic formation. Currently the heating is realized in roller hearth furnaces which allow only a slow heating and, therefore, a limited production rate. Induction heating of the blanks offers a big potential to increase the production rate dramatically and also to improve the energy efficiency. Only due to the fact, that the heated blanks typically are already pre-shaped with holes and cut-outs induction heating becomes a very complex task. The paper compares different possible induction heating methods (longitudinal heating, transverse flux heating, single stage induction heating, hybrid heating by induction and conventional heating). For the case of single stage induction heating a detailed numerical and experimental investigation in the frame of a recently completed research project is presented.",
keywords = "hot metal forming, induction heat treatment, induction heating of blanks, strip heating",
author = "B. Nacke and A. Dietrich",
note = "Funding information: The research project “Series-production of inductively heated blanks for hot sheet metal forming” (IFG-No. 18738 N) from the Research Association for steel Application (FOSTA) and the Research Association of Automotive Technology (FAT) is supported by the Federal Ministry of Economic Affairs and Energy through the German Federation of Industrial Research Associations (AiF) as part of the programme for promoting industrial cooperative research (IGF) on the basis of a decision by the German Bundestag.; 9th International Symposium on Electromagnetic Processing of Materials, EPM 2018 ; Conference date: 14-10-2018 Through 18-10-2018",
year = "2018",
month = oct,
day = "13",
doi = "10.1088/1757-899X/424/1/012058",
language = "English",
volume = "424",
series = "IOP Conference Series: Materials Science and Engineering",
booktitle = "9th International Symposium on Electromagnetic Processing of Materials (EPM2018)14–18 October 2018, Hyogo, Japan",
}