T4E – Weld Positions and Joints

T4E – Weld Positions and Joints


Today, we’re going to talk a little bit
about weld positions. And I have some little drawings that we’re
going to go through. When we talk about this, I want everybody
to remember it’s not how your plate is sitting that determines what the position is; it’s how that weld is oriented. Basically, the way I want you to think of it is– if you draw a line from the center for the face down through the root where is that line going to be pointing. In the case of a flat weld like this, if
we go from the center of the face down through the root, it’s pointing down at
the ground that makes it flat. For our horizontal welds, were pointing off to the side. And it can
be either side, but if it’s pointing to the side we’re looking at horizontal. And our overhead, we’re going to be
pointing up remember overhead doesn’t mean it’s over your head. It means you’re
pointing up. If it’s three inches off the ground,
if you’re pointing up it’s still an overhead weld. That’s how those look. And the other
thing that we’re going to look at is, we have fillets and grooves. Fillet weld. Groove weld. They’ll be an F or a G. And then our positions are one, two, three, and four for flat, horizontal, vertical, and overhead. I know
I didn’t draw a picture for vertical because you’re basically looking at the
face of the weld when you’re doing vertical. And we have some pieces look at to go through that. When you see a position, if we see 1F that’s a flat fillet weld. 2G– that is a horizontal groove weld. I have little mock-ups of our five most common joints. And we’re going to look at those and I’ll show you what they each look like in each position. The first one we’re going to look at is our lap joint. And if you look, this peace of metal is going to be where our electrode is pointing and it goes down through the center of the face and then out the root. So when my lap joint is sitting anywhere
between here and here, that’s flat. If I turn it and I’m between here in
here, we’re looking at horizontal. Our vertical is anything like this. And then our overhead is anywhere where
this is pointing, between here and here. So this is all overhead. Right. Here’s our tee joint. When we take our tee joint, our flat is here. Our horizontal is this area. Our overhead is like this. And then our vertical, once again, is standing up anywhere like this. On our groove welds, we have our flat, where we’re pointing straight down to the ground. And it can be from here to here. Then we have our horizontal, like this. And then we have our overhead, anywhere from here to here. And our vertical is going to be like that. In this case, we’re going vertical up. Here’s our edge weld. We have our flat. Our horizontal. Vertical. And our overhead. Our outside corner joint. Flat– anywhere in here. Horizontal. Vertical. And our overhead.

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