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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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The Malleability of Gold
"Harold and Susan Vordos" wrote:
Not likely, but only because they are work hardened from being struck. When gold is rolled, by the time it gets down around .03" in thickness, it can't support its own weight after being annealed, and will fold over itself easily (been there, done that). It's no wonder why you can get about 35 miles of gold wire out of a troy ounce. Very ductile, malleable element in the pure state. I was talking to my uncle a few minutes and he was remarking that silver can be drawn out to remarkable lenghths. He quoted me an impressive number but I'm not sure he was mixing grains with grams and such. As an aside, it wasn't so long ago that forecasts of a silver shortage were in all the photography magazines. I guess digicams solved that one. Wes |
#2
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The Malleability of Gold
"Wes" wrote in message ... "Harold and Susan Vordos" wrote: Not likely, but only because they are work hardened from being struck. When gold is rolled, by the time it gets down around .03" in thickness, it can't support its own weight after being annealed, and will fold over itself easily (been there, done that). It's no wonder why you can get about 35 miles of gold wire out of a troy ounce. Very ductile, malleable element in the pure state. I was talking to my uncle a few minutes and he was remarking that silver can be drawn out to remarkable lenghths. He quoted me an impressive number but I'm not sure he was mixing grains with grams and such. As an aside, it wasn't so long ago that forecasts of a silver shortage were in all the photography magazines. I guess digicams solved that one. Wes It was well documented that at one point in time, were it not for recycling silver, it was being consumed at a rate greater than production. You can attribute that to photography, which was likely the largest consumer of silver at that point in time, save for coinage. I agree----digicams, along with all electronic photo devices, have materially changed the entire industry. When's the last time you purchased a roll of film? Been years for us------not sure if it's even still on the shelves like it used to be. Harold |
#3
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The Malleability of Gold
"Harold and Susan Vordos" wrote:
It was well documented that at one point in time, were it not for recycling silver, it was being consumed at a rate greater than production. You can attribute that to photography, which was likely the largest consumer of silver at that point in time, save for coinage. I agree----digicams, along with all electronic photo devices, have materially changed the entire industry. When's the last time you purchased a roll of film? Been years for us------not sure if it's even still on the shelves like it used to be. I bought some film about 3 years ago from B&W. Still in the refrigerator. By now the battery in my F1 is dead again... FWIW, I was in a local drafting supply store today. Last time I was in there was when I was in college back in the early 90's. Sure seemed different in there. No boards, few templates but lots of plotters. They still had drawing tubes though. Needed one to keep my gattling gun plan set in. Wes |
#4
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The Malleability of Gold
On Fri, 30 Nov 2007 15:50:09 -0500, Wes wrote:
They still had drawing tubes though. Needed one to keep my gattling gun plan set in. RGG, or another one? |
#5
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The Malleability of Gold
Dave Hinz wrote:
On Fri, 30 Nov 2007 15:50:09 -0500, Wes wrote: They still had drawing tubes though. Needed one to keep my gattling gun plan set in. RGG, or another one? I went with RGG which shoots LR's. The other one, D&E, seems to only shoot shorts. Wes |
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