November 23, 2012

Aluminum Casting cans to ingot

MINDLESS BORING:diy Aluminum Casting Backyard Foundry, INGOT MAKING FURNACE: How much melted aluminum can I get out of recycled beer and soda cans? Good question, this experiment in melting aluminum cans was done using a PYREX crucible, and a common outdoor fryer as FURNACE. Some old fire brick from a woodstove as refractory and about 135 aluminum cans. I consider this diy Aluminum Casting experiment a success, although melting down cans to get a quality pour is not cost effective in both fuel for the foundry furnace or time.

A better source for aluminum suitable for casting would be used aluminum engine parts, or other scrap alumimun parts that are of a hgher quality to begin with as my best guestimate shows an approximate 1 third loss of volume to the high dross content of aluminum cans. This aluminum smelting project yielded an approximate 2 pound ingot. I decided to pour my cleaned molten aluminum into a steel soup can, for the ingot mould, as this would provide a cylinder with a flat bottom suitable for chucking in a metal lathe.
Melting Aluminum cans to Cast Piston How to Aluminum Casting homemade diy piston for a stirling engine. Backyard Foundry,