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Hi James,

Hmm, that may work but it sure sounds like a surefire way to eat hacksaw blades for breakfast! I "tried" cutting into a pure tungsten rod scrap that I
had left over from my ARSG just for the heckuvit
and found that the hacksaw blade could make
a small indentation into the tungsten but quickly
dulled out. I believe the tungsten rod was 1/2" stock and I MAY have made a 1/16" indenta- tion before the saw blade got too dull to do any more practical cutting. How large diame-
ter were the tungsten rods that you were cutting?
Were you using special hardened blades in your
saw? As to only running the blade in the "cutting"
direction, I haven't thought of that but I really fail
to see how that would make the blade last mira-
culously longer when cutting a material as hard as tungsten. I do realize that pure tungsten is some-
what "softer" than tungsten alloys and tungsten is
used as a futher hardening agent to alloy with other hard metals, but even 99.95% pure tungsten
still seems quite a hard material that will quickly
dull a standard metal cutting hacksaw blade,
at least from my personal experience.

David Rieben

----- Original Message ----- From: "James" <mustang3@xxxxxxx>
To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
Sent: Thursday, April 23, 2009 8:38 PM

BTW; how are you going to cut your tungsten rod???


Hi Hank, I have the fool proof way to cut the rods. Use a fresh 32tpi
good hacksaw blade in good handle. Clamp rod in vise with pad. Use firm
pressure on saw. Remember, saw only cuts in forward direction (dulls in
the reverse direction). Then break it, chuck the piece up in your drill,
and dress with your bench grinder. I did all 8 pieces in no time. James

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