NDLI: Tube Press Hardening for Lightweight Design

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Neugebauer, Reimund Schieck, Frank Werner, Markus
Copyright Year	2011
Abstract	Press hardening is an innovative technology being applied to meet the growing demands for both lightweight and crash performance qualities. To further increase the lightweight potential, closed profiles are being used. As a result, a method has been developed at the Fraunhofer Institute for Machine Tools and Forming Technology IWU which allows the integration of press hardening of tubes and closed profiles into the media-based forming process. Using this press hardening technology, the original material strength of 500 MPa can be increased to between 1200 and 1900 MPa, depending on the chosen material. The engineering of tube press hardening is more complex than other forming processes, specifically the time dependence in combination with heat management makes it difficult. Therefore the use of FEA is indispensible when dealing with aspects such as heat treatment, the forming process itself, the cooling caused by the gaseous forming media and the general heat management of the tooling. To control and improve the process and therefore the part quality and process reliability, all these factors and their dependencies have to be taken into account. In addition to 22MnB5, other manganese-boron alloyed steels and different heating strategies have been tested. Based on these experiments the process capability was successfully proven and technological limits were obtained. Current investigations are focused on realizing tailored properties thus creating areas with varied strength and ductility in a single part.
Sponsorship	Manufacturing Engineering Division
Starting Page	495
Ending Page	502
Page Count	8
File Format	PDF
ISBN	9780791844304
DOI	10.1115/MSEC2011-50151
Volume Number	ASME 2011 International Manufacturing Science and Engineering Conference, Volume 1
Conference Proceedings	ASME 2011 International Manufacturing Science and Engineering Conference
Language	English
Publisher Date	2011-06-13
Publisher Place	Corvallis, Oregon, USA
Access Restriction	Subscribed
Subject Keyword	Press hardening Hot gas forming Hot stamping Media based forming Hydroforming Manganese-boron steel Design Hardening Boron Steel
Content Type	Text
Resource Type	Article

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A Quick Cycle Time Sensitivity Analysis of Boron Steel Hot Stamping

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