Basic Flux Cored Welding on Square Tubing

hey everybody is Dan welcome to wealth fever on today's episode we're going to attack a little flux core welding also known as gasless made by some anyway stick with me here we go ok before we get started today I just want to take a minute to remind you all that we do sell these well fever caps and well fever sticker on our store as well fever calm and then just click the store icon right in the middle right now since we've just begun well fever Wednesday we're going to have a special on these $14.99 gets you one of these it's a little bit of a sale discount price over what we normally sell them for on the well fever Wednesday special just make sure to visit and click on this and put in the promo code Wednesday Wednesday is the promo code for this and we will send this to you for $14.99 that's the special sale price and we'll include a free sticker but if you want stickers by themselves you can also purchase those online as well ok I want to direct your attention to the wire itself now I happen to have a spool of lincoln electric wire of course there are many other brands out there but this is what I have on hand so I'm going to describe this one okay the first of all it's important that you understand that the AWS designation for this kind of hollow tube wire is e 71 t dash 11 so there are many manufacturers and they all call them something different it's their trade names but the AWS designation is e 71 t dash 11 lincoln electric happens to call this particular type of wire NR 211 MP you can see that right here NR 211 MP the NR stands for north ridge and that's for the Northridge earthquake as a result of that earthquake the formulations were changed I think it was turned into a low hydrogen if I'm not mistaken and that allowed it to become FEMA certified for seismic use the MP is very important that stands for multi pass if you do not have this MP on your particular flux core or if your flux core says SP which is single-pass then that means you cannot weld more than one pass with that particular wire so if you stack another bead on top of it you will have problems it will fail eventually so make sure if you're going to weld bead after bead that it says MP for multi pass the other thing I want to direct your attention to is right over here this is the maximum thickness this particular wire which happens to be an O 3 o NR 211 is rated for a maximum of 5/16 in thickness now what that means very clearly and very plainly is that you are not to weld thicker than 5/16 of an inch material with this no matter how many passes you do on it that's the one exception to the rule usually your machines will give you an idea of the thickness you can weld in a single pass this is telling you 5/16 is the maximum and if you need to weld thicker than that you need to go to a different type of a wire that's all you can do on this one very important most people overlook that all the time ok to start off we're just going to go ahead and do a quick bead doing some flux core you might notice that I do not have a standard MIG nozzle on there it's not necessary since there's no shielding gas and that's what that nozzle is for but instead I have a little protector there for the contact tip important to try to protect that contact tip from all the spatter and especially the threaded area where the contact tip meets the contact tip body just doing a nice and easy back and forth kind of side-to-side motion as I go down as straight as I can down the path okay and real quick this is the result of our weld not too bad okay for the next weld we're going to go back to the tried-and-true square tubing everybody loves square tubing because it's so versatile and so many projects are made with it so that's why we go ahead and continue to do it it seems to be a popular thing on weld fever and I want to give what the audience wants anyhow we start off by tacking all four corners as you can see here it's a relatively simple procedure just got to make sure you put enough downward pressure so that the opposite sides don't lift up when you do it and you also have to make sure that you have a substantial enough tack so that you know everything stays in place once it's down and want it to lift up also you'll notice I'm hitting it with a little bit of wire brush after I'm done administering the tacks remember of course flux-cored does leave slag and that slag has to be cleaned off before you weld over it otherwise you're likely to trap that slag underneath your freshly applied weld all right so now that we have our tax in place we're going to go ahead and perform a weld here this is actually a flare bevel weld since we have one edge that's meaning into a kind of a rounded edge there and this is like just the videos that we've done in the past only on this particular one you cannot push with flux core you have to pull with it the old saying goes if it has slag you must drag and that's exactly what this has so you have to make sure that you're always pulling and never pushing otherwise you will trap slag and have a not so pleasing weld as a result this one and it went in rather smoothly and we were able to just go a little slight side-to-side motion in order to get things the way we wanted it to and I was pleased with it now we'll just go ahead and do the other side same thing right in there take our time make sure the weld is fusing properly make sure that it's penetrating bothering you don't want to rush the well but yet you don't want to stay so long that you end up building it up to mine either always keep your eye on the puddle and see what it's doing if you see that it's penetrating a little too much and you might be in danger of blowing a hole into it well then you got to speed it up and move however if you see that it's laying right on top and it's not actually sinking into the metal meaning a lack of fusion and a lack of penetration that means you have to do one of two things either you have to hold in there a little bit longer or you might have to adjust your machine upwards in terms of its its eat value now keep this in mind both on MIG and in flux for welding if you need to increase the heat if you need to increase the amperage you need to do it via your wire speed and not your voltage biggest mistake people make is they think that voltage is the key to raising the heat and it is not adjusting the voltage all that does is raises and lowers the arc length nothing more that raising and lowering of the arc length makes it so that the machine will run based on your wire feed speed the first adjustment you should always make on any mig any wire feed welder is wire feed speed okay continuing on we're getting to some of the lasso here this one is just like a t joint as we have done many times before and again you have to make sure that you get both sides equally both the top and the bottom have to be applied in equal distance equal length right here you see I had a little foul up there which is good but you notice before I restarted I cleaned it off if you have a problem or if you have to stop for whatever reason it you have to restart you must make sure when welding with flux core that you remove that slag before you begin again if not like just like before you're in danger of trapping slag right under it anyhow continuing on this weld one and well and it looks like I have equal amount of weld on both sides top and bottom and that's always what you're shooting for now we clean it up and look and doesn't look too bad hey thanks for joining us don't forget to check us out on Instagram hashtag well fever also check us out on facebook is facebook.com/paes our viewership as we bring you a new show everyone's and well super Wednesday bye

Channel: WeldFever

Views: 231,053

Rating: 4.8764329 out of 5

Keywords: mig welding, mig weld, how to mig weld, what is mig welding, mig welder, welding equipment, how to weld, mig welding machine, welding types, welding how to, how to weld with mig, gmaw, welding machines, miller welding, weld, welding, welder, welding supply, welding supplies, mig, tig welder, miller welders, lincoln electric, arc welding, welding practice, welding training, flux core, flux cored, nr-211, nr211, nr-211-mp, e71t-8, gasless mig, fcaw

Id: M5z2osw6EbA

Length: 8min 54sec (534 seconds)

Published: Wed Feb 18 2015