Forming Limit Diagrams for AA5083 under SPF and QPF Conditions

Abstract:

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Forming Limit Diagrams (FLD’s) for AA5083 aluminum sheet were established under both Superplastic Forming (SPF) and Quick Plastic Forming (QPF) conditions. SPF conditions consisted of a strain rate of 0.0001/s at 500°C, while QPF conditions consisted of a strain rate of 0.01/s at 450°C. The forming limit diagrams were generated using uniaxial tension, biaxial bulge, and plane strain bulge testing. Forming limits were defined using two criteria: (1) macroscopic fracture and (2) greater than 2% cavitation. Very little difference was observed between the plane strain limits in the SPF and QPF conditions indicating comparable formability between the two processes with a commercial grade AA5083 material.

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Edited by:

K.F. Zhang

Pages:

129-134

DOI:

10.4028/www.scientific.net/MSF.551-552.129

Citation:

M. A. Kulas et al., "Forming Limit Diagrams for AA5083 under SPF and QPF Conditions", Materials Science Forum, Vols. 551-552, pp. 129-134, 2007

Online since:

July 2007

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Price:

$35.00

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