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I want to cast some aluminum parts.

Started by Dan/Panther, June 06, 2010, 07:28:54 PM

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Dan/Panther

I have a magneto for an old WE wall phone, and the armature mounting brackets are broken, and a replacement magneto is just to hard to find.
I want to attempt to cast the parts in aluminum.
I have the ability to make Kiln hardened molds, or just plain Plaster molds. Does anyone know which mold type would be better for making cast aluminum parts. I believe the aluminum melts at like 1100 Fahrenheit. The clay molds will withstand 3000 plus degrees, I'm not sure how much heat a plaster mold would withstand ?
Any advice would be appreciated.
D/P

The More People I meet, The More I Love, and MISS My Dog.  Dan Robinson

JorgeAmely

D/P:

Were the original parts made of aluminum also? If you are replacing iron with aluminum, it may not work, because aluminum is not a magnetic material. Unless the aluminum you are bringing into the phone does not play a role in the magnetic circuit associated with the operation of the phone.
Jorge

Jim Stettler

You might want to sand cast instead. Some high school metal shops may still have foundry.
Jim
I love the smell of foundry sand.
You live, You learn,
You die, you forget it all.

Dan/Panther

The parts were/are originally pot metal.
D/P

The More People I meet, The More I Love, and MISS My Dog.  Dan Robinson

JorgeAmely

Jorge

McHeath

Wow, casting aluminum.  You have passed my level, the only thing I cast is the occasional fishing line.  

paul-f

Quote from: Dan/Panther on June 06, 2010, 07:28:54 PM
I have a magneto for an old WE wall phone, and the armature mounting brackets are broken, and a replacement magneto is just to hard to find.
<snip>

D/P:  Please post photos of the magneto and/or parts you need.  There's a chance I may have something and a better chance that a post on the ATCA and TCI lists would produce results.  There are a lot of magnetos and parts out there.  Many go unsold at shows.
Visit: paul-f.com         WE  500  Design_Line

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Dan/Panther

Paul;
Here is the magneto. It's a W.E. 48-A. You can see the crack lines, where it was broken, before I patched it back together in an attempt to make a mold.
D/P

The More People I meet, The More I Love, and MISS My Dog.  Dan Robinson

paul-f

D/P:  The photo helps.  I believe my parts magnetos are incompatible models.  I'll double check to make sure.  Try the club lists.  There are enoug wood specialists there that someone is likely to have a magneto parts box.
Visit: paul-f.com         WE  500  Design_Line

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