On Sun, 21 May 2006 22:04:03 -0400, "Zipper"
zipper_REMOVETHIS_777@comcastDOTnet wrote:

Hello all, I troll here pretty frequently, and I have started doing some
real welding just recently. I am using a TIG welder and doing mostly small
aluminum (3/16" and less). I have been doing some practice work, and I was
curious if anyone here could take a look at some of these pictures and give
me any advice. In this case I was using 6061 1/16" wall round tubing and
using 1/16" 4043 filler. The welder is a HTP Invertatig 201 with the amprage
set to 55-90, and the frequency set to 150. 56K warning, these pictures are
pretty big.



http://home.comcast.net/~zipper777/DSC_4586.JPG

http://home.comcast.net/~zipper777/DSC_4587.JPG

http://home.comcast.net/~zipper777/DSC_4590.JPG

http://home.comcast.net/~zipper777/DSC_4591.JPG

http://home.comcast.net/~zipper777/DSC_4592.JPG

http://home.comcast.net/~zipper777/DSC_4594.JPG

http://home.comcast.net/~zipper777/DSC_4597.JPG

http://home.comcast.net/~zipper777/DSC_4598.JPG

http://home.comcast.net/~zipper777/DSC_4599.JPG

http://home.comcast.net/~zipper777/DSC_4600.JPG

http://home.comcast.net/~zipper777/DSC_4601.JPG

http://home.comcast.net/~zipper777/DSC_4602.JPG



Sorry for some of the shots not being totally in focus, the camera was using
a close up lens, and I couldn't get it exactly how I wanted for each shot.



I noticed that the welds did not seem that strong to me, I welded 2 pieces
together in a T shape and I welded 4 sides (not one contigious seam though),
and I was easily able to break it apert. So either the aluminum is a lot
weaker than I thought, or I botched the weld.



Thanks for any assistance.



-Zipper

On second reading I note that your filler is same size as your stock
thickness. You might try using 1.2mm 4043 MIG wire as filler. I've
found that works better for me when welding 1/16" aluminum with either
TIG or gas.