4 Mar
2007
4 Mar
'07
11:18 a.m.
--- Chuck Guzis <cclist at sydex.com> wrote:
On 4 Mar 2007 at 10:42, Chris M wrote:
There are innumerable ways of alloying metals, with
minute differences yielding materials of astoundingly
different properties then you'd be led to believe. On
the off chance they were more or less cast from a
standard "pile" off stuph is the reason I asked. Some
dude casted pieces of a homemade lathe from floppy
casings, which I was led to believe were primarily
zamac or something similar (zinc based). Which was
surprising because the plans he used called for
aluminum. http://www.dm.net/~lughaid/barry.htm.
Whoops, actually he used the casings from scrapped
hard drives, but what would be the difference?
____________________________________________________________________________________
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http://autos.yahoo.com/new_cars.html
Dopey question I guess, but was there anything
in
the
way of a standard alloy used for drives? Was it
more
aluminum or more zinc?
I have no idea. Some of the standard diecasting
alloys can be found
here, but it wouldn't surprise me if some of the
manufacturers
"tweaked" the composition a bit:
http://www.kineticdiecasting.com/tech.html
Heck, I can't get the straight scoop on some brass
alloys that I use.
Apparently, there were bits and dabs of "additives"
that were
considered to be trade secrets.