Like Jselin wrote, there is more problems concerning al-li alloys because the alkali metal like lithium addition in alloy with Al, so Li gives all technical problems, like violent reactions with water, oxygen, hydrogen at temperatures bellow 5oo C, nytrogen and so on, that will take to...
why you not try some alloys Al-Si-Mg , they are very stable in your temperature interval &the final passing with cnc is very good also, y think, with regards on designing of mold in accordance with dilatation and contraction on these alloys.
Y need some information about the technollogy concerning ellaboration of Al-Li alloys,like parameters of metall casting in controlled atmosphere of argon, handling of components like powder or bars of commercially pure alluminium and powder or metallic lithium.Y want to scetch a installation for...