Friends, all welcome on our channel, dedicated to all those who have mastered their own welding, or thinks about it. Here we try to give real information based on many years of welding practice, you will not find in the welding textbooks.
Today Let us examine an important topic for beginners to learn how to weld, weld burn-through on thin metal. For example Let us examine the situation with the relevant pipes, because they account for big volume of work at home welding at home, in the country and so on.
For example, take two pieces of shaped pipes 60 is 30 mm, 2 mm thick. This I still have pieces with gashes under 45 degrees after welding work.
By combining these pieces, and brew joint, but especially I made one burn-through on each side of the joint. Diameter of burn will be approximately 10 mm.
Council first, when there was a burn through when welding proftruby, once it does not zaplavlyayte better Dowar seam to the end, and then you can already go back to that hole. During this time, the metal in place of burning podostynet, and fused to be simpler.
Brew this hole starting with the arc ignition at the seam-thick metal here, and it will be easier. Lighted electrode overlap slightly, also act on the opposite side, then studs slag, and repeat this operation until the metal deposited on both sides does not connect in one whole.
So we cooked up the first burn-through, the second will zaplavlyat other way.
Take studs and wash with electrode part, then this metal rod we catch the edge of burning.
Then just take and fast, very fast arc spend on this rod to heat the it, and it will be pliable like clay. In this state, we turn off the rod into the ring inside of burning annealed once rod podstukivaem hammer height flush with the base metal.
We see. it took almost the entire ring Volume of burn-through. In this state, it will be very easy to make it, is already filled with a metal hole.
That's all stirred up without any problems.
And now, for a more visual familiarity with these methods, let's look at the video.
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