SHOULD YOU PUSH OR PULL A MIG WELD? FLAT OR RIPPLE BEAD?

[Music] so math matchup in this video talking about push versus pull with mig welding and a flat MIG weld bead versus a rippled bead where you give it that sort of weaved look to it alright so I've had quite a few comments of people telling me that I shouldn't be pulling a MIG weld or that you shouldn't be doing any sort of weave or ripple sort of technique when you're doing a MIG weld you should just always keep it dead flat so my opinion on this for just general all-around welding and fabricating building yourself a chassis for your car or a roll cage or building a gate or just general purpose welding fabrication whether you're pushing or pulling the weld doesn't really make a great deal of difference and if you're building yourself a roll cage you build yourself a chassis you can't only do one direction of travel like you can't only do a push because you might not be able to get your torch in you're working in tight little spaces you just can't do it you've got to be able to do all different directions of welding because you might be in a tight gap where the only way you can actually see what the puddle is doing is to pull it back towards you if you're talking about structural welding you know they might specify that you have to do a certain direction of travel with whatever it is you're welding but for general purpose stuff like I don't think there's an issue to do it either way as long as you so if this is what you're welding as long as you're not too far off of straight up and down whether you're a little bit that way a little bit that way traveling in either direction then you're gonna be alright you know you don't want to be having real excess torch angle you might have a job where you can't get the torch and the only way to do it would be to have some ridiculous torch angle and you've just got to do it to get it done so when you're actually working trying to get stuff done it's not like your sire bench and you're always able to just do that perfect you know maneuver that you've been taught so you might have to go away from that and it's not really a big issue things that do make a big issue are like machine settings if you have your machine your settings slightly out that's going to make a big difference to the world if your travel speed is too fast that's going to make a big difference to the world how you've prepared what it is you're welding where it's got mill scale on it whether the you know the joints prepared well that's going to make a big difference to the world a little bit of a little bit of push-pull angle just doesn't really and then when it comes to putting a ripple in it there's a lot there's loads of different ways of creating that rip would look to a well you can do it by you sort of like roll the torch around as if you were drawing a spring or doing a load of ease connected up that's the way I probably use most and your role in the world back on itself that will give you that rip would look another technique I use is just to move along in like little just sort of nudge my way along the world like pausing for a split second as I move along or you can literally weave it up and down across the joint there's there's loads of ways of getting that look and it seems if you do one of if you do a word like that put it all up on YouTube you'll get a YouTube world inspector coming and telling you that you shouldn't be doing that I've had someone say that you can't you would never pass a world in test doing that or a drag and I took some tests about a year ago for a job interview and one of them was a it was like a ten inch weld on some real thick plate and I did like a backhanded backhanded like so weaving it doing that roll in technique all the way along in it with the inspector like looking over my shoulder and all my tests pass and they offer me a job so you can kind of believe what you want to believe but the main benefit for me of actually putting a ripple pan into the world other than it it looks nice is that I'm able to do a long run and keep it very consistent because I can kind of get a bit of a rhythm going and roll it all the way along whereas if I'm trying to do a straight just this really long straight push or pull I seem to like lose my speed a little bit and I'll end up with a bit of it like inconsistent weld but you can you know you do all different techniques for different applications another benefit of doing that is you're getting a much wider weld bead it's much easier to build the weld up to create a larger weld I'm going to do some test pieces I'm going to do a push just a straight flat push and I'm going to do a straight flat push with some like putting a bit of a ripple pattern into it maybe we're just like the stop and pause technique just edging my way along and letting the world build up to create like a bigger world and then I'm going to do a pull just as completely flat pull weld or a drag and then I'm gonna do a pull where I sort of roll it like like you're drawing a spring roll it all the way along and then we'll cut them and I've accidentally worked out a way of highlighting the weld bead when you cut through it if you've ever watched any of Joliette world in tips and tricks videos I watched one where he was testing some MIG welds and he'd cut them polished in and then etch them with some sort of acid and it highlights the highlights the world and you can see how it's like penetrated into the base mouth so I was messing around cutting some pieces up and I'd run a weld on top of one the piece tide car and the heat from had highlighted the weld and you could see roughly what he was doing so I did another one and just blasted it with her with a blowtorch matte gas torch and it highlighted the world really well you could sort of see what's going on I don't think that it highlights it to the same extent that the acid would but it definitely gives you a bit of an indication as to what's going on so that's how I'm going to test the pieces and hopefully it will just show that you know you can you can do either/or and was not really great deal difference in it so let's do that [Applause] [Applause] [Applause] these are both the push these are both the pole angle that's always the nicest looking and I think where you do three or four lateral people you see this one is both the push angles are flat and then this side was like a go along and pause and then so yeah now we're going to cut them and see what's going on this is our drag piece you can see that one is done really well the flat drag is penetrate further deep into the corner but this one has a much larger overall area where where it's burnt into the two mouths this is our push so this what this side was very kind of stop and pause as we're going along and just loud build-up that's done pretty well that's driven into the corner well but it hasn't the surface areas and quite as good as the join the spring technique and then the flat push against got quite deep into the corner but the best it's gotta be that one I'd see so I just basically slice this up all the way along the length of it and what I shamed me is that my worlds aren't nearly as consistent as I thought they were so it's a bit further along the flat push and you can see along the bottom edge doesn't look like it's done very well at all and there's there's a real inconsistency between all of them like as you as I've cut through the world it's pretty much different everywhere along so I think why shows is for testing a human unless you're unless you've got real robotic movements then maybe this isn't that good of a procedure for testing but yeah you can have like a little bit where it looks like it's so I'm not burnt into the bomb that could be that I would just angled the torch slightly up at the top piece at that split second whereas like a centimeter further down that weld you know it's actually penetrated really well into the base so it's an inconsistency of my torch movements as opposed to a difference in the angle of the torch or push or pull I've done all these test pieces messing around with different settings and just having to play around basically and I had a few a few of these little test pieces which kind of looked like they hadn't done that well similar to that world they did a minute ago so I thought I would just try and break them and I couldn't break any of them they're all rock-solid so that's why I think that maybe the heat to highlight the world probably isn't showing everything that the acid test does show so what a shame for me was that a flat loud is drive further into the root especially over like a tea joint it's going to drive further into the route which is kind of obvious anyway because if you think about what's going on you're just pointing the wire straight into the root and dragging it all the way along if you're doing some sort of ripple you know trying to weave it around you're moving that you're pointing the wire away from the root of the join you're pointing it up towards the top down at the bottom you're only rolling it across that joint you're not continuously driving it down in there but you are getting a much broader area of penetration to the metal so which is better you know they're still gonna be better for different applications if you want a smaller look and well just run it flat if you want a bigger one you know weave it as you can do whatever you want so if you're new to it and you've got someone telling you that you should only be doing the one thing then hopefully this shows that there's lots of different ways to always get a good result at the end there's not just one way of doing things saying as for that way of testing and highlighting the world I'm not really sure how good of a test that actually is but it's definitely interesting to play around with what you're doing and do that just to have a look so I'm going to continue to do push welds pull welds flat welds weave welds all of it like you might find that you're much more consistent doing a push or a pull but my advice is learn to do it all and when you actually come to work in doing a job you will use all of them so that's it for this one just watch him yeah [Music]

Channel: Urchfab

Views: 196,908

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Keywords: push vs pull mig welding, should i push or drag a mig weld, urchfab, mig welding problems, mig welding for beginners, mig welder settings, mig welder problems, mig welding basics, welding tips and tricks, welding and fabrication, mig welding tips, mig welding tips for beginners, mig welding tips for beginning welders, mig welding tips and tricks, fabrication tips and tricks, fabrication tips, welding tips

Id: Roy7qpjocQg

Length: 15min 43sec (943 seconds)

Published: Mon Aug 06 2018