Welcome visitors and subscribers to our channel entry on those who decided on their own to master the manual arc welding.
The theme of today's article are relevant to work with welding in a domestic environment, namely, As electrode burn a hole in a metal flat, upright .
Example I To illustrate picked upright piece of sheet metal 2 mm in thickness. H and this plate need to burn a hole smooth.
Hole we do to it with minimal gaps included here this round pipe, which has an outer diameter of 45 mm.
We draw out our tube any layout tools that you use in your work, I work with a pencil for all surfaces (hard).
Now we repeat our circle, suffered a pencil, chalk, draw out as evenly as possible. Why could not immediately cut around the pipe with chalk? Just in this case is not always a piece of chalk repeats clearly the contours of the pipe, and make a greater diameter than needed. So so reliable pencil, then chalk.
Now we will do the guiding beacon. Ignition electrode in the upper part of our circle and quick movement are conducting it to the bottom point of the circle. We do this on both sides of the circle. Arc hold of the outer contour of our chalk circle.
So we get an excellent guide, consisting of a thin weld seam.
Here is a smooth round beacon we get. Now ignite the arc inside this circle, after making more current, and also are conducting electrode on the inner edge of our round beacon. It should look quite smooth bore without sharp edges torn. Lead and two semicircles from top to bottom.
Burned the two holes. The result is visually turned out very good, and now count up how it will go into these holes 45, our pipe.
As you can see, burning holes in this way, the holes are obtained quite smooth, with a given size, and the edges are not sharp ragged transitions.
Now let's see a video where I was doing this work, then something forgot to specify in the article itself.
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