Anyone make their own aluminum alloys? I am interested in casting an aluminum part requiring high strength with little need for corrosion resistance. Something along the lines of 7075 sounds perfect. The data sheets for 7075 give the ratios for zinc (5.1-6.1%), copper (2%) and magnesium (3%). There are lots of other elements, obviously, but I think the bulk of them are for corrosion resistance and other things I'm not too concerned with. Does anyone see a flaw in heating up a crucible full of aluminum, and adding in these three elements (well ventilated and with respirators for zinc fumes).
Thanks in advance!