Affiliation:
1. Institute of Materials Science and Technology, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
Abstract
Purpose: of this paper: The main objectives of this paper are to give an overview about the
application of various kinds of high strength steels and aluminium alloys in the automotive
industry to produce lightweight car body elements to achieve significant reductions in harmful
emissions to provide more environmental friendly vehicles which simultaneously fulfils the
increased safety requirements, too. In these respects, both high strength automotive steels
(e.g. DP, TRIP, TWIP and HPF steels), as well as high strength aluminium alloys (e.g. AA6082,
AA7075, etc.) are more and more widely applied in the vehicle manufacturing.
Design/methodology/approach: The contradiction between the increased strength and
lower formability of these high strength metallic materials is one of the main issues in their
application in the automotive industry. Therefore, in this paper primary focus will be placed on
the formability properties of these materials, concerning first of all the limits of formability in
various cold and hot forming conditions. To fully utilize the potentials of these materials in forming
processes the numerical modelling of forming with FEM simulation is of utmost importance.
Findings: Recently in the automotive industry the Hot Press Forming of high strength
boron-alloyed manganese steels become an industrially established process, while the
Hot Forming and Quenching (HFQ) of artificially ageing high strength aluminium alloys now
become the focus of scientific research. The paper will analyse the main process parameters
and gives comparisons of automotive applications.
Research limitations/implications: There are still certain shortages of industrial
applications, namely the limits of economic cycle times for economical mass production
which needs further research activities in these fields.
Practical implications: Since both the materials mentioned above and the forming
processes usually applied, furthermore the available benefits are extremely important for the
automotive industry these results have significant practical involvement.
Originality/value: The applied research methods and the introduced new findings will
show the originality of the paper.
Subject
General Materials Science
Cited by
4 articles.
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