I welcome everyone!
You are on the channel for beginners garage-country self-taught in welding and locksmith. Here we share our experience to help the newbie get up to speed quickly, rather than through trial and error.
This all concerns welding with electrodes. But with a semiautomatic device I am a beginner myself. I haven’t even burned the first coil of wire weighing 5 kg, although I bought the device six months ago. It was just that a dacha was bought, and I was mired in repairs for the warm season, I did not take welding orders.
But the renovation has been postponed until spring, it's time to start welding! I will show on my welding order for welding a structure from a 1.5 mm profile pipe what conclusions I have come to, how easier and better it is to cook thin metal for a beginner on a semiautomatic device.
We ordered portable shields for enclosing the territory. The structure is made of 40 x 20 mm and 20 x 20 mm shaped tubes, wall thickness 1.5 mm.
In the photo, I have not yet welded a solid structure, just wondering in what sequence it is better to do everything.
But then I welded the racks, they are a simple T-shaped connection of a professional pipe and a brace on one side of this connection. There are 4 fillet welds on the post.
And I welded 40 of these racks, which means there will be 160 seams! So I experimented quite well with semiautomatic welding. Namely, with the direction of the welding movement - weld with an angle forward or an angle backward, how best the seams will be obtained.
Whoever cooks with electrodes knows that there are such concepts. If you lead the electrode tilted away from you, then it will be welding with an angle forward.
If we lead the electrode towards ourselves, towards ourselves, then it will be an angle back.
With the semiautomatic burner, everything is the same, we lead the burner either with a forward angle - welding away from ourselves, or with a backward angle - we cook by leading the burner towards ourselves. So I fully compared the difference in the direction of welding with a semiautomatic torch on a thin professional pipe. I will show you a lot of photos of the seams, I cooked both with an angle forward and an angle back. I work on such a semiautomatic welding machine.
This is a modern 200 amp semiautomatic device of the VIKING 200 SYNERGIC brand.
He has many options for settings, which can be listed for a long time. But there is one very interesting feature that a beginner needs. This function helps me, a person with minimal experience in welding with a semiautomatic device, to weld pretty good seams. I'll show you at the end of the article, and now let's look at the difference in the seams.
Friends, there are 6 photos of the seams at the top. All these photos of welding with a backward angle, I led the welding torch towards myself when welding. For better clarity, I took a piece of welding wire and cooked it, its thickness is 0.8 mm. Everything is clearly visible against its background and a large zoom.
When welding thin metal with a backward angle, the seams are quite convex. There is no smooth transition from the top of the seam to the edges. No matter how I tried it, you still get about the same seams. Now let's look at the seams welded with an angle forward - the burner led away from us.
Also 6 photos of welds. I liked the forward angle welding better. The seams are more beautiful, smoother and more monolithic. Everything is smooth from the top to the edges.
Most of the stitches on the uprights I did this way, well, when I aligned like this and so. It became obvious that it is more preferable to lead the torch at an angle forward when welding a thin profile pipe. I hope you agree with my examples. And now a few words about this function of a semiautomatic device for beginners.
In the settings there is such a welding mode, called synergy. What does SYNERGY mean?
This function is only for beginners. Select the type of metal to be welded and the diameter of the welding wire in the machine settings on the electronic display.
Now we just adjust two parameters at the same time with one twist - we add current, and the wire feed speed is automatically increased to the desired optimal value.
Synergy will help beginners weld pretty well almost immediately, from the first seams. Then, as you gain experience, you can switch to manual settings.
Friends, you can watch this semiautomatic device HERE
And if you say that you came from the Manual arc welding channel, you can get a 10% discount