Welding question: joining an inner sleeve

On Sun, 23 Sep 2007 11:13:26 +0000 (UTC), Fortunat1 wrote:

Michael Horowitz wrote in
:

On Sat, 22 Sep 2007 10:43:11 +0000 (UTC), Fortunat1 wrote:

"

Hope you don't mind me butting in here, but the photo that Michael put
up of that splice with the slit cut into the outer tube. Is anyone
suggesting that this is a good type of splice for some applications? I
can't see any inherent advantages in this as opposed to the diagonal
type. Or is this just an experiment in welding through a small gap in
the tubing?


OP here - what I was trying to do as easily as possible was to
duplicate the single part of the weld that would give me problems:
getting the inner metal molten without cooking the outer metal
sleeve. I simply cut an 1/8" slot in a piece of tubng, slipped the
inner tube in place and welded the two beads. Yes, I know why a real
weld would be along a 30^ angle, but that wasn't the point of the
exercise, which was to see how to run that bead, whether on the TE of
a split outer tube, or the gap proscribed for a splice by inner
sleeve. - Mike



OK, thanks. I reckoned as much but had to ask!

I tried a few of those myself with the 30 deg cut and they were tough
enough. But I did get a few inches of good weld which does prove they are
possible! For me I found thye clicked along best when I kept the torch in
nice and close and concentrated on getting the inner sleeve melting, just
like the rosette, which are also working fine for me now.

Someone in another group recommended I read this article -
http://airbum.com/articles/ArticleZenWelding.html
I gotta read it again for comprehension. Good read over coffee.

I normally wear glasses but take them off when I'm working with
goggles. I _think_ I'm seeing things OK, but for $12 I'm going to
visit the drugstore and see what they got. I would like to get my
face closer to the work - Mike