Testing TIG Welding Techniques

hey Jody hearth welding tips and tricks' calm I'm going to talk kind of fast today I got a lot of material to cover today I'm going to be testing you know I like to test I'm doing some some t-joints tape welding some carbon steel t-joints 11 gauge material and I'm going to test no pulse versus one calls per second versus pulsing with the foot pedal also called pedal whomping or pumping the pedal but before we get into that I want to real quickly show three applications where I think pulse TIG is really beneficial I don't pulse much I don't use it much most of the time I'm just using straight current with a foot pedal but there are a few little areas that I think work really well let's show them right now my friend Alex Brown shared these settings on the welding tips and tricks' podcast for an outside corner joint on thin sheet metal using chilled bars except that he recommends putting the chill bars much closer than I have them right here like just leaving enough room for the weld and that really limits distortion and discoloration another application where I think pulse really helps us build up of an edge I use higher speed pulse for those applications like 50 and above maybe even up to a hundred if it's really a thin edge on an edge or near an edge it really makes it kind of stick and keeps that puddle from wandering like this this is 50 pulses a second with everything else set to 33 I'm using the Fupa 12 the Furyk number 12 cup here and it is doing a really good job on providing good coverage I want you to pay attention right here that that area of coverage of argon still there is like a little rectangle they're really good cup the third area is TIG welding actually it's called TIG brazing silicon bronze pulsing really can help the heat from building up and getting too scummy and mixing in too much steel with the silicon bronze you don't want to melt base metal when you're TIG brazing this is about one pulse a second and this joint can easily be done without pulse but I think using pulse just makes it dead easy and another word about pulsing is I pretty much this is just my preference I pretty much prefer to pulse either at one or two pulses a second or all the way up above 3333 and over anything in between is like just makes for a long day up first we're going to test a tea joint with no pulse so the machine is set at 131 amps and I wound up right at a hundred and twenty eight amps I had a camera on the face of the machine while I was welding this for some reason I didn't feel like going completely full pedal but it would have done just fine if I had as well I was moving along at a pretty good clip nothing to slow me down I'm not having to try to time pulses or anything like that and so that that joint went pretty well these are the settings I used along with the size electrode and whatnot travel speed is one of the biggest components of heat input and that took one minute and 12 seconds to do that joint there and so that equates to pretty much five inches per minute of travel speed we're going to see the travel speed change a little bit as we turn the pulse settings on one pulse per second fifty-five percent on time to allow a little bit of time to get the filler wire in there and I'm going full pedal here at 131 amps now notice the readout on the machine when I light out light up here I mean I'm ash the pedal pretty much full pedal from the get-go you show it's reading out 86 amps and that's kind of an average of the low and the high pulse so a general rule of thumb when you're pulsing is you know you want to probably use a little bit more amperage than you would with straight current I just left this the same here and I'm trying to I'm trying to time it where I'm dipping the rod once per second on the high amperage side of the pulse and it takes a second to get used to that if you're not used to you know like doing production work on pulse TIG or something like that there's other methods where we could just lay the wire in there and walk right over it but that's for another video so that slowed the travel all the way down from a minute 12 to a minute 48 that's a considerable difference yet the the heat tent didn't really show much difference here so the pulse obviously had some kind of an effect next up we're going to do the little whomping the pedal whomping thing with 131 amps and I'm going to go full bore from the get-go all the way to the floor and then back off manually now I've timed this and it's roughly 0.7 pulses a second and you see that the pulse doesn't go immediately down to the low and immediately up to the high it takes it a minute because you know it's not the same as circuitry changing it's your it takes it a second for the for your foot to increase the amperage but I'm I'm going full pedal and then I'm trying to just back the the puddle down to maybe a third the size and with certain types of material you could create a little crater crack in between pulses here so I don't know that this is a great technique for just every type of material it slowed the travel speed down to two inches and look at all that heat tent much more heat input so there's the there's the joint that was done with straight current no pulse 128 amps here's the joint that was a hundred thirty-one amps one pulse per second full pedal 55% on time 25% background and this joint was done with just manual pulsing with the pedal at 131 amps so it's time to cut an itch now and check out the penetration profiles I like to test and I'm going to cut them using this swag off-road little Porter band stand here you could cut them with a grinder a chop saw doesn't really matter a whole lot for this particular test I'm smoothing it off with a belt sander and then I'm going to the swab edge right away I want to show you the arcs on each one of these joints so that you can correlate them with the result and that's what we got there you just kind of just got into the root not a whole lot more than that but satisfactory here's the one pulse per second there's the arc and there's the result we're just kind of popping lines here across so you can see exactly where the root of the joint is had actually penetrated a little bit more than the joint done with no pulse next up is the pumping the pedal joint there's the arc you know it just it's a lot more heat input here because of it not traveling you know from high pulse to low pulse immediately and that's the resulting nugget a little bit more penetration either of the other two but I did put a lot more heat into the metal that's the welding part of the video I did hook up an air-cooled TIG torch before I started this I'm going to show that for the next minute or so it's a CK worldwide flex had 17 err cool style torch with a super flex cable one of my favorite torches especially when used with a stubby gas lens kit so the next minutes going to be hooking up hooking that thing up to my dynasty and getting it ready I am trying to add products to the store this is the first torch that I added to the store it makes sense it's just a good all-around torch super flex cable I'm going to show how to install the basic stubby gas lens kit this is the basic kit that only comes with the 332 hardware and a number eight cup and this is basically all the parts that there you got you pop the heat insulator off of the 17 and you pop the one that came with the stubby kit on there grab the collet insert it in there I like to use these little buttons a lot because I'm often time welding up inside square tubing number eight cup is kind of my go-to cup for most everything steel and this is an adapter a Den's adapter that you would use for like I'm using a mill or dynasty here that's got a standard 5/8 thread argonne fitting on it and this is the clamshell thingy the way that's designed there and that's where the torch screws in so I'm going to insert the end of that red Superflex cable right into that threaded hole snug it up a little bit with a couple of adjustable wrenches and I'll be ready to put the clam shell thing back together and that will insulate everything keep anything from being accessible that's electrically hot screw that in there and give it a little snug and then plug the dense connector in and I'll be ready to go this the super flex cables are just you just have to kind of experience them they're super nice that got me back to the beginning of this video attacking these joints up I don't know that I would have predicted accurately the results going into this thing that's why I like to test testings a bit of effort I think it's worth it I hope you learn something I know I did remember I support these videos with my online store at weld monger com we'll see you next time you

Channel: weldingtipsandtricks

Views: 212,354

Rating: 4.9576378 out of 5

Keywords: tig welding, tig welding tips, tig welding techniques, how to tig weld, pulse tig, pulse tig settings, tig welding carbon, gas tungsten arc welding, gtaw, heliarc

Id: V5OhIc7R6r8

Length: 9min 53sec (593 seconds)

Published: Tue Jun 06 2017