Comments on: Metal Casting at Home Part 2 Backyard Foundry

By: Mangekyu10

Mangekyu10 — Sat, 02 Jan 2010 09:56:06 +0000

Does the casting …
Does the casting affect the sand in any way to prevent it from being reused?

By: ab48726

ab48726 — Sat, 02 Jan 2010 09:56:06 +0000

haha, nice blooper …
haha, nice blooper reel at the end!

By: ab48726

ab48726 — Sat, 02 Jan 2010 09:56:06 +0000

LOL, I just waiting …
LOL, I just waiting for that boom! Nicely done! Thanks for sharing this, it was very informative to us guys just starting out.

By: baconator490

baconator490 — Sat, 02 Jan 2010 09:56:06 +0000

soo what did you …
soo what did you cast?

By: sunnyz5

sunnyz5 — Sat, 02 Jan 2010 09:56:06 +0000

That is really good …
That is really good! Thank you so much for sharing. Interesting stuff.

By: twofoot65

twofoot65 — Sat, 02 Jan 2010 09:56:06 +0000

Have you had any …
Have you had any problems with your aluminium castings versus the cast iron of the originals? Are there any strength issues?

I assume you use aluminium due to its lower melting point.

By: ImmaEatCh00

ImmaEatCh00 — Sat, 02 Jan 2010 09:56:06 +0000

cast aluminium is a …
cast aluminium is a better grade than the extruded because extruded is alloyed with other metals/chemicals to improve the different required properties of the structure (resisitance to warping , tearing, integral strength etc) castings rarely need this “boost” because these problems usually do not arise from the thicker, sturdier shapes formed by casting

By: myfordboy

myfordboy — Sat, 02 Jan 2010 09:56:06 +0000

Interesting. I only …
Interesting. I only ever use metal that has been cast before so have not encounted this. The SS crucibles do eventualy fail , but they are cheap.

By: nubeldorf

nubeldorf — Sat, 02 Jan 2010 09:56:06 +0000

I have found that …
I have found that when I melt things like aluminum extrusions (which I think are close to pure AL) it will eat through SS after a few melts. With cast AL the SS containers last much much longer. I’m sure there is some chemistry behind this.

By: dudemanspence123

dudemanspence123 — Sat, 02 Jan 2010 09:56:06 +0000

you know i really …
you know i really dont know what any of this is(maybe because im twelve) but for some reason i think its really interesting to whatch. my dad would probably know more about it though.