Abstract: Methods for processing machining chips comprising aluminum-lithium alloys are provided. The method comprises cleaning machining chips comprising an aluminum-lithium alloy to remove at least a portion of processing fluid from the machining chips and providing cleaned machining chips. The method also comprises compressing a volume of the cleaned chips to provide a compact comprising a density of at least 70% of the full theoretical density of the aluminum-lithium alloy.

Abstract: New 6xxx aluminum alloys are disclosed. In one approach, a new 6xxx aluminum alloy may include from 0.25-0.60 wt. % Fe, 0.8-1.2 wt. % Si, 0.35-1.1 wt. % Mg, 0.05-0.8 wt. % Mn, up to 0.30 wt. % Cu, up to 0.35 wt. % Zn, up to 0.15 wt. % Ti, up to 0.15 wt. % each of Cr, Zr, and V, the balance being aluminum, incidental elements and impurities. The new 6xxx aluminum alloys may be made from recycled aluminum alloys.