Quote:
Originally Posted by Tristan Lall
Did you need to adjust the alloy for better casting properties? (I assume you started with mostly wrought Al-Mg-Si alloys like 6061.)
Did you attempt any heat treatment afterward? (If so, what was the process, and how did it go?)
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If you plan to do some casting, it is best to get your raw metal from scrap castings. That way you know the specific alloy was appropriate for casting in the first place, and not stamping, extruding, machining, etc. There is a lot of scrap metal out there, so if you hook up with the right source it is usually easy to get enough of the correct raw material at modest or even zero cost for casting projects. The real issue with casting is having a safe location and the right tools and experience to do the work in a safe manner.
When it all comes down to it, it's not gonna be the medal around your neck that makes the difference, but the memories that you think about when you look back on how you got there that makes the difference. - Beth Sweet [more] 
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