Hydro-mechanical deep drawing of rolled magnesium sheets

authored by: Friedrich-Wilhelm Bach, Bernd-Arno Behrens, Michael Rodman, Oliver Vogt, Arne Roßberg
Abstract: Magnesium sheets offer high specific properties which make them very attractive in modern light weight constructions. The main obstacles for a wider usage are their high production costs, the poor corrosion properties and the limited ductility. Until today, forming processes have to be conducted at temperatures well above T = 220 °C. In the first place, this is a cost factor. Moreover, technical aspects, such as grain growth or the limited use of lubrication speak against high temperatures. The first aim of the presented research work is to increase the ductility at lower temperatures by alloy modification and by an adapted rolling technology. The key factor to reach Isotropic mechanical properties and increased limit drawing ratios in deep drawing tools, is to achieve fine, homogeneous microstructures. This can be done by cross rolling at moderate temperatures. The heat treatment has to be adapted accordingly. In a second stage, hydro-mechanical deep drawing experiments were carried out at elevated temperature. The results show that the forming behaviour of the tested Mg-alloys is considerably improved compared to conventional deep drawing.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Article
Journal: Steel research international
Volume: 76
Pages: 930-934
No. of pages: 5
ISSN: 1611-3683
Publication date: 12.2005
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Condensed Matter Physics, Physical and Theoretical Chemistry, Metals and Alloys, Materials Chemistry
Electronic version(s): https://doi.org/10.1002/srin.200506119 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{2de6b6ecc2fd44c19f9ecbe027de2118,
title = "Hydro-mechanical deep drawing of rolled magnesium sheets",
abstract = "Magnesium sheets offer high specific properties which make them very attractive in modern light weight constructions. The main obstacles for a wider usage are their high production costs, the poor corrosion properties and the limited ductility. Until today, forming processes have to be conducted at temperatures well above T = 220 °C. In the first place, this is a cost factor. Moreover, technical aspects, such as grain growth or the limited use of lubrication speak against high temperatures. The first aim of the presented research work is to increase the ductility at lower temperatures by alloy modification and by an adapted rolling technology. The key factor to reach Isotropic mechanical properties and increased limit drawing ratios in deep drawing tools, is to achieve fine, homogeneous microstructures. This can be done by cross rolling at moderate temperatures. The heat treatment has to be adapted accordingly. In a second stage, hydro-mechanical deep drawing experiments were carried out at elevated temperature. The results show that the forming behaviour of the tested Mg-alloys is considerably improved compared to conventional deep drawing.",
keywords = "Grain refinement, Hydro-mechanical deep drawing, Magnesium, Rolling, Wrought alloys",
author = "Friedrich-Wilhelm Bach and Bernd-Arno Behrens and Michael Rodman and Oliver Vogt and Arne Ro{\ss}berg",
year = "2005",
month = dec,
doi = "10.1002/srin.200506119",
language = "English",
volume = "76",
pages = "930--934",
journal = "Steel research international",
issn = "1611-3683",
publisher = "Wiley-Blackwell",
number = "12",
}