"pyotr filipivich" wrote in message
...

"Jim Wilkins" on Thu, 31 Jul 2014 09:24:34
-0400 typed in rec.crafts.metalworking the following:
"Ed Huntress" wrote:
Here's a new hobby idea for the hard-core 2nd-Amendment types, who
lust over loaded howitzers as lawn ornaments, and MANPADS for duck
hunting, etc.:
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ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army
Armament Research, Development, and Engineering Center believe that
3-D printing "will present security experts and policy makers with
capabilities previously unimaginable." The AP quotes James Zunino,
materials engineer with the center, saying, "Once you get into
detonation physics, you open up a whole new universe." The piece
reports that Zunino's work "involves figuring out how different
layers of explosive material can be packaged in new shapes to get a
very specific result."

--
Ed Huntress

If they could only 3-D print Plutonium...

It is being worked on. Maybe not intentionally working on
'printing' Plut parts, but eventually there will be some work with
reactive metals. Like Aluminum.
--
pyotr filipivich

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[Ed]

Printing powdered metals and sintering them with a laser is already being
done. I was just inquiring today with a company involved in it, to see what
density they've achieved. It's high, but apparently they haven't hit 98%
yet, which is about what you get with conventional pressing and sintering,
plus a post-sinter "hit" with a press.

--
Ed Huntress