Than it ain't tungsten.... sorry, you can't just drill hardest metal without use of hardest mineral... And the diamond tipped drill bit would "choke" in gold and wouldn't leave a "sharp point" pilot whole either.
Than it ain't tungsten.... sorry, you can't just drill hardest metal without use of hardest mineral... And the diamond tipped drill bit would "choke" in gold and wouldn't leave a "sharp point" pilot whole either.
Pure Tungston or Tungston Carbide. There is a difference.
Tungsten is far far away from being the hardest metal. The 97% alloys (usually referred to as pure) are only about 47 rockwell C scale. And there is far more than just hardness that dictates what can be machined. I assure you tungsten is totally machinable with carbide tools. How do I know? I've sent a few tons of chips outside to the chip bin.
This.
I think guys were confusing Tungston alloy with the Tungston Carbide plating, as used on resizing dies, tool bits, etc..
Q: Is it magnetic at all?
Last I heard, Rhenium diboride is the hardest metal.
Yeah, but this is almost the opposite of finding a golden ticket.
Didn't look to hard becasue I am at work. If IRRC this is why Ron paul wanted to audit Ft knox. Fake bars (big ones). I am sure someone with more google fu can find a lot more.
http://www.gold-quote.net/en/articles/fake-tungsten-gold-bars.php
http://www.wealthwire.com/news/metals/1295
http://www.gold-quote.net/en/articles/fake-tungsten-gold-bars.php
http://www.wealthwire.com/news/metals/1295
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Interesting... I hadn't even considered that, but that is a scary thought indeed!
