Warm forging of magnesium AZ80 alloy for the control arm in an automobile

With the growing environmental concerns surrounding transportation machines, magnesium alloy, which has an excellent specific strength, good vibration damping and a high electromagnetic shielding capability, is increasingly being used in automobile body parts in order to reduce the carbon emissions...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part D, Journal of automobile engineering Journal of automobile engineering, 2015-11, Vol.229 (13), p.1732-1738
Main Authors: Yoon, Jonghun, Lee, Sang-ik
Format: Article
Language:English
Subjects:
Anisotropy
Automobiles
Automotive bodies
Automotive components
Automotive engineering
Carbon
Compressive strength
Damping
Forging
Magnesium
Magnesium base alloys
Mechanical properties
Vehicle emissions
Vibration
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Summary:With the growing environmental concerns surrounding transportation machines, magnesium alloy, which has an excellent specific strength, good vibration damping and a high electromagnetic shielding capability, is increasingly being used in automobile body parts in order to reduce the carbon emissions and to increase the energy efficiency through a reduction in the mass. However, forming techniques with magnesium alloy at room temperature pose considerable difficulty owing to its strong plastic anisotropy of tension and compression. In this study, a control arm, which is a complex-shaped part in the suspension system of a vehicle, was warm forged with Mg–8 mass % Al–0.5 mass % Zn (AZ80) alloy to reduce the mass. To validate the applicability of the magnesium alloy control arm in the automobile, its microstructure and its mechanical properties were analysed.
ISSN:0954-4070
2041-2991
DOI:10.1177/0954407014567909