Optimal design of induction heating process for hot metal forming of steel blanks

authored by
Bernard Nacke, André Dietrich
Abstract

Due to growing challenges regarding crash-performance, CO2 emission as well as increasing demand for lightweight construction, hot 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, limited production. Additionally, due to the indirect heating principle of roller hearth furnaces the energy efficiency is low. Induction heating for hot metal forming 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 parts typically are already pre-shaped and mostly have already holes and cut-outs induction heating becomes a very complex task. The paper describes the numerical and experimental investigation and the optimization of a single-stage induction heating process for hot forming of pre-shaped blanks and gives design rules for an optimized induction heating system.

Organisation(s)
Institute of Electrothermic Process Engineering
Type
Conference contribution
Pages
230-236
No. of pages
7
Publication date
09.2019
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Artificial Intelligence, Computer Science Applications, Control and Systems Engineering, Control and Optimization, Modelling and Simulation
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1109/CSCMP45713.2019.8976825 (Access: Closed)