Friends all welcome. We continue the important advice for those new to welding. And today will be a lesson shaped tube proper docking and fusion, that was exactly after the cook.
For a visual example of the proper and smooth docking we take two pieces shaped tube 40 to 60mm long by 1 meter (1000 mm), each 3mm thick. The ends naturally smoothly cut at 90 degrees.
We then need to prepare a design with two flat surface for smooth docking and potholders our meter whips. In this photo shows the structure for docking-proftruby it consists of 50 to 100 and 40 to proftruby 60, but it does not really matter, because you can attach to anything, the main two straight surface.
We spread our meter billet tightly and smoothly stykuya visually controlling smooth fit of the mating surfaces.
Then I take a piece of 2mm cutting disc grinders and placed under the joint. So I'm doing to tack when it was less stress at the joint, and got a little gap for better penetration.
Put two tack and remove the liner from the disc, presses the joint space to the bottom plane of the tube and also set tack.
Then we turn our dock pipe and put the last 4 tack. If done correctly, then our design on the tack will be flat.
Now we need to start to weld pipe. Personally, I am here to be welded in such a way, never make the first stitch in full, and impose a pair of short shovchik from the edges to the middle, leaving indigestion about half of the pipe. In this case, starting with a long side welding 60 mm if proftruba equilateral, say 50 to 50 mm, all the same which side to weld again.
Overturn the tube and fully weld the opposite side, but then, wait at least 30 seconds, our first weld seam part. Why wait for a little bit after the seam welding? Just so reduces unwanted deformation effects of excessive heat.
Then turn the remaining two sides of the weld-overlaying joints are completely at a time to one side, do not forget to wait a bit before the opposite side of the weld.
Just by trial and error, I have come specifically to a docking technology of profile pipes. If the first stitch to put all at once, then the likelihood that the tube will pull a lot more. Once again, I get so much more accurate.
So we docked, the two-meter piece of pipe. It turned out quite smoothly, if you make a visual inspection. But for clarity, I planted a pipe below a set of cut-off wheels, so that the pipe does not hang on the seam, and Side thrust wheels also only grinding docked between the pipe and the lateral pipe for docking. As can be seen docked smooth tube.
And finally look at a short minute video, where you can visually assess the quality of such docking technology, see?