Lightweight materials for automotive applications

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Materials Characterization

DOI:https://doi.org/10.1016/1044-5803(95)00063-1· OSTI ID:94431

Cole, G S; Sherman, A M ^[1]

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1. Ford Motor Company, Dearborn, MI (United States)

As a result of more stringent requirements for improved fuel economy and emissions, there is a growing tend to substitute Al and Mg for conventional steel and cast irons in vehicles. this article describes some of the technical issues that must be considered if the automotive industry is to utilize these lightweight materials in larger volumes. Lightweight metals may be used in the vehicle in both wrought and cast forms. Aluminum, in the form of stamped sheet, has the potential to be used extensively in vehicle structures and closures. However, compared to steel, aluminum is more difficult to stamp and spot weld. Current research is exploring ways of improving the formability of Al alloys and developing alternate joining methods including adhesive bonding and fasteners. Mg, Al, and metal-matrix composite casting have the potential to be used as replacements for many ferrous castings in power-train and chassis components. However, because of their different tribology, strength, and ductility, light-metal castings require improved foundry procedures and more sophisticated design rules before product engineers will use them in larger quantities. A major challenge for lightweight materials is the ability to produce a functional component at an acceptable price. The presentation concludes with a cost-benefit perspective for typical light-metal applications in the automotive industry.

• OSTI ID: 94431
• Report Number(s): CONF-940793--
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 1 Vol. 35; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
AUTOMOBILES
COMPOSITE MATERIALS
COST BENEFIT ANALYSIS
FABRICATION
MAGNESIUM ALLOYS
MATERIALS
MECHANICAL PROPERTIES
USES
WEIGHT