I'm in the structural steel business and so I have a lot to learn about
aluminum, however, many years ago, during a slow period, we fabricated quite
a few aluminum freeway road signs. They were the great big ones with a truss
spanning the freeway and multiple pipe columns with zig zag pipes welded
everywhere. At that time, the big problem with aluminum was that the heat of
the welding process caused it to lose about 50% of the strength it had
acquired from being heat treated at the rolling mill. This strength could be
replaced by reinforcing all of the welds with extra material or by re-heat
treating the finished product. The heat treating temperatures are much lower
than are required for steel, but the process still requires a furnace large
enough to hold the finished product.

wrote in message
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On Sun, 13 Jan 2008 09:25:14 -0500, "Jim" wrote:


Quoting Kanter AKA bedroom Joe
I don't know her, but based on the information you provided, I know
something ABOUT her. Here's an example of what I know about her: She
thinks a handmade pastry from a fancy bakery is identical to a frozen
Sara Lee pastry with the same name, like "tiramisu".

Speaking of food Doug; how's that strict chicken and rice diet workin for
ya?


He says it tastes just like Crow.