Re: [CAD_CAM_EDM_DRO] Re: melting aluminium

I have that book. Need to find some high temperature elements for melting
aluminum though. I'm getting a ceramic kiln in July. Maybe I can use it
for aluminum melting too?

I also have a couple of small electric furnaces I bought for heat treating
knife blades and melting glass for enamel work. Maybe I'll try those for
use on REAL SMALL castings.

'Course ...as others have mentioned...LP is MUCH cheaper than electricity
and coal is even cheaper.

>Smoke,Dave Gingery has a book on building electric furnaces. The book
>is called "Lil Bertha" and he does a fine job on design and building
>the things. I built one and have given it to a friend as I got too
>old to mess with hot stuff. The furnace worked for many years and
>melted Al for many castings. It took about 1 hour from a cold start
>to melt a quart (about 56 cubic inches). The power at 220 volts input
>was 1800 watts (9 amps). You will enjoy the book if you can find it
>and the furnacing and casting can be done in your basement if you use
>clean aluminum.
>
>Richard
>
>--- In CAD_CAM_EDM_DRO@y..., "Smoke" <gordonr@r...> wrote:
>> One of you electrical geniuses want to try figuring out how much
>electrical
>> power I'd need to melt aluminum using an AC magnetic field? Maybe
>I could
>> build myself a simple electric melting furnace and be able to get my
>> castings for the CNC (and other) machines done a lot quicker.
>Perhaps my
>> portable generator and a step up transformer could be used as the
>main power
>> source?
>>
>> Smoke
>
>
>
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