Friends, spring has come, soon you will have to weld many structures from shaped pipes. Summer showers, gates, gates, fences and much more on their plots at home and in the country. Welding a 1.5 mm professional pipe requires accuracy, because it is very easy to burn through it, especially if you need to weld a gap.
On a 1.5 mm pipe, even a small gap allows the welding arc to melt the edges in a fraction of a second, so we'd better close this gap before welding. I'll show you a little trick on how to do it easily.
For example, I took a piece of pipe 30 by 30 mm, thickness 1.5 mm, made a cut with a grinder to simulate a gap.
There is such a method as welding with an additive. We need to beat off the electrode from the coating. No, we will not weld with this electrode, it is needed to close our gap!
It is advisable to completely insert the electrode into the gap before welding. This will allow welding on a short arc, if the broken electrode does not fall into the gap, then welding will take place on a long arc, it will not be very convenient and beginners will have a high probability not to weld, but simply to melt the metal onto the surface. But there is one trick here.
Just crimping the rod of the electrode, the metal is soft, crimps well. Then we put it in the gap, flush with the surface of the pipe itself. In this position, welding will be on a short arc, it will be easier and faster to weld the gap.
We adjust the current and brew. Tear-off welding, so it is safer not to burn through. Rutile electrodes 3 mm in diameter. In this way, we completely weld two parts, even with gaps.
Friends, let's watch a video about this method, there the information is more detailed and visual.