Welcome all newcomers self-taught in the manual arc welding on our channel!
Today will be quite important and interesting topic not only for beginners, but also for people with experience in svarke- As cooking profiled tube electrode as quickly and do not burn.
Will show you the technique of welding thin shaped tube, which increases the speed of the welding by 2-3 times, and also reduces the likelihood of burn-through, you do not believe that this is possible? Then read carefully to the end, and your arsenal replenished with another welding trick!
The first step uses an electrode that corresponds to the diameter of the pipe to be welded profile. For a pipe of 1.5 mm Take electrodes 2 mm diameter tube of 2 mm-2.5 mm electrodes, the tube 3 and a take-mm 3 mm diameter electrodes.
In our example will be profiled tube 60 at 30 mm, wall thickness of 2 mm, we will use respectively with rutile electrodes, diameter 2.5 mm.
On the tube we have done here such cuts a thin disk of 0.8 mm, they will simulate a butt joint in the lower position for us. Set up the welding current at the same propylene, about setting the channel has a separate article, be sure to read is important.
As usually happens welding thin profile pipes? Usually this will be the spot welds, as the metal is thin, and driving the seam sploshnyakom, we will promptly do burn through.
For example, the first seam and we cooked-to-point margin.
Obbili slag, the first seam is ready, it is usual classical welding method, still cooked. See how you can cook this seam is much faster and sploshnyakom.
Igniter first seam, and at a fast speed are conducting its angle forward on the future site of the weld-in this case, cuts in the pipe. At this point, in many places of the future weld metal snaps and this place becomes much thicker in some places than the actual 2-millimeter pipe.
So we have corrected the problem itself slow-welding small metal thickness at the weld. And now, without stopping, we just are conducting electrode on the opposite edge of the angle back now points not cook sure, it's possible to go sploshnyakom without interruption, respectively, a welding speed will be much higher and the likelihood of of burning less!
That's the trick! It has helped us not only to significantly increase welding speed, but also reduces the possibility of burn tube.
There is another option, but let's see the video of the whole process, in the video information and more visual.