Exit temperatures required to make mech. properties of aluminum extrusion alloys 6063, 6061, 6005 and 6082.?

Question

Exit temperatures required to make mech. properties of aluminum extrusion alloys 6063, 6061, 6005 and 6082.?

Answer 1

Increasing exit temperature up to 520 deg C and by increasing

extrusion speed and billet

temperature one can promote recrystallisation

and reduce the

grain size in a fully recrystallised

grain structure. Reducing Mn and

Cr contents in alloy 6061 also has

a significant impact on promoting recrystallisation.