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Astronuc
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Aug19-07, 09:46 AM
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Quote Quote by One Minute Mentor, ASM International
Formability is the extent to which a material can be deformed in a particular process before the onset of failure. Aluminum sheet and aluminum shapes usually fail by localized necking or by ductile fracture. Precipitation-strengthened aluminum alloys usually are formed in the naturally aged (T4) condition, or in the annealed (O) condition, but only very rarely in the peak-strength (T6) condition where both the necking and fracture limits are low. Curves can be plotted for most of the precipitation-strengthened alloys in the 2xxx and 6xxx series showing the effect of a wide range of precipitation structures on some of the forming properties.
http://asm.asminternational.org/ht-e...707_figure.pdf