Metalworking might conjure images of large furnaces powered by coal, wood, or electricity, with molten metal sloshing around and visible in its crucible. But metalworking from home doesn’t need ...

The contents of the crucible must be stirred well ... the brass is skimmed to remove the slag, and the molten alloy then run into ingot molds. Muntz metal, so well known, is composed of 60 parts ...

Photo by David Carson, [email protected] A worker skims impurities off the top of a crucible of molten aluminum that will be poured into 1500 sows at the Noranda Aluminum smelter in New ...