Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig



Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM







--
It's spam free, I wouldn't post it otherwise.

"John Doe" wrote in message
...
Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig



Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM



Thanks, that led me to a cool hydroforming video using a pressure washer.
Others might like it too;

http://www.youtube.com/watch?v=I_Z3A...eature=related

On Thu, 1 Nov 2012 10:32:07 +0000 (UTC), John Doe
wrote:

Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig

Hot stuff, Maynard!


Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM

Pretty cool. I liked the kitten crash link on that page, too.
http://www.youtube.com/watch?v=uBsa8...feature=relmfu and
http://www.youtube.com/watch?v=go43X...eature=related

--
The great thing about getting older is that
you don't lose all the other ages you've been.
-- Madeleine L'Engle

On 11/1/2012 3:32 AM, John Doe wrote:
Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig



Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM







I watched them do that very procedure from my office window in
Beaverton, Oregon, back in the 1980's. Only they were a little more
careful, the cross-ties were wooden.

Paul

On 11/01/2012 03:32 AM, John Doe wrote:
Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig

Pretty neat, but I would expect railway workers to be wearing their
safety glasses over their eyes, especially when performing an active
procedure like in this video.

Jon

"John Doe" wrote in message
...
Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig



Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM







--
It's spam free, I wouldn't post it otherwise.


For unusual metal working, it is hard to beat cutting steel with bacon:
http://www.youtube.com/watch?v=w9dskxN10N0

On Thu, 01 Nov 2012 06:59:56 -0700, Larry Jaques wrote:

On Thu, 1 Nov 2012 10:32:07 +0000 (UTC), John Doe
wrote:

Title "railroad thermite welding".

http://www.youtube.com/watch?v=5uxsFglz2ig

Hot stuff, Maynard!


Title "The Power of Friction", not sure what the product is. Doesn't
look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM

Pretty cool. I liked the kitten crash link on that page, too.
http://www.youtube.com/watch?v=uBsa8...feature=relmfu and
http://www.youtube.com/watch?v=go43X...eature=related

We had a litter of kittens that did that when I was growing up. Except
they'd back off about 20 feet from each other and collide at full speed.

And I don't mean they did it once: it was one of their favorite games.

I'm not sure what a cat with Dementia pugilistica is like: we gave the
kittens away.

--
My liberal friends think I'm a conservative kook.
My conservative friends think I'm a liberal kook.
Why am I not happy that they have found common ground?

Tim Wescott, Communications, Control, Circuits & Software
http://www.wescottdesign.com

http://www.youtube.com/watch?v=51Zs8iaydt0

John Doe wrote:


Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM

That's friction stir welding. Driveshafts, half-axles
and similar tubular components have been welded this
way for many years, now. Once the process has been
set up properly, it is a VERY reliable welding technology.

Jon

On Mon, 05 Nov 2012 19:15:41 -0600, Jon Elson
wrote:

John Doe wrote:


Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM

That's friction stir welding. Driveshafts, half-axles
and similar tubular components have been welded this
way for many years, now. Once the process has been
set up properly, it is a VERY reliable welding technology.

Jon
Except it's not friction stir welding. Friction stir welding is where,
for example, two aluminum sheets are butted together and a hard
spinning pin, like carbide, is pushed into the interface of the two
sheets. It is then traversed along the interface and the spinning
motion, the linear motion, and the friction all contribute to making
the material plastic enough to flow. The material from both sheets is
then stirred together making the bond. The material is not heated to
the melting point. see this link:
http://www.youtube.com/watch?v=uRC9_...feature=fvwrel
I myself have done a type of friction stir welding more than once.
Unintentionally. Sometimes the cutter that does the welding is ruined.
Other metals, steel and brass among them, can be friction stir welded.
Eric

In article ,
Jon Elson wrote:

John Doe wrote:


Title "The Power of Friction", not sure what the product is.
Doesn't look like a good weld to me, but I wouldn't know.

http://www.youtube.com/watch?v=5JbnDXw-0pM

That's friction stir welding. Driveshafts, half-axles
and similar tubular components have been welded this
way for many years, now. Once the process has been
set up properly, it is a VERY reliable welding technology.

Stir welding is something else, as others have noted. This is friction
welding:

http://en.wikipedia.org/wiki/Friction_welding

Joe Gwinn