welcome to Welkom while back we did a video of just of a comparison of tube gas list flux
core wires whoo with that ever fun on the comment section that was I got kind of wild so we're gonna
do it again we we told you we would do it again we everybody was curious about depth of fusion and we
want to do a this time we're doing a fill it well last time we just did an outside corner joint just
to see how they ran I think we had an issue of some wire that was kind of pulsing a little bit
and I believe we've got that worked out so anyway I want to do these fill it wells I've cleaned some
three sixteenths plate up and we're gonna change values a little bit then from what we ran before
we're gonna be running 20 volts 230 will inches a minute on our wire feed speed oh three oh he's
71 tgs gasless flux core wire straight polarity that was the that was the deal that we got into
a lot of people forget to change that I'm gonna go ahead and admit to you that that I ran some
of it for my students just to demonstrate it and and then I came back out and we were going to do
another demonstration and the demonstration was Oh to three wire on a two inch pipe on a rollout
and I'm setting that machine up that we'd had that gasless flux core and we had the polarity
switched on it guess what I did I couldn't figure out why this machine wouldn't run hardwire it it
looked like and sounded like I had stainless and in helium gas in there and then it dawned on me
yeah go ahead and change the polarity back to electrode positive for hard wires so hey stuff
happens you know and we were setting this up a while ago and I couldn't get an arc I couldn't
figure out why and you know it helps if you have a ground clamp but you know for 40 years I've been
trying to weld without this ground clamp and it's never worked yet so I'm learning yet anyway we're
gonna go ahead and do this weld here again we're gonna you know to be fair we're comparing two
wires I'm gonna try to keep things consistent I'm not going to do much of a whip or the weave type
thing I'm just going to try to run it in here straight I may do just a stitch and a pause or
a step in the pause as you'd call it's going to be very subtle I want to run these the same
and consistent I've even ground these plates and noticed this is kind of rusty but I have cleaned
things up and I'll be even have all my grind marks running the same so just you know if we
if we eliminated everything we'd had polished and sandblasted coupons and we'd be running
this mechanically with the exact travel speed I'm telling you it's not going to make that much of a
difference for depth of fusion off either one of them so let's experiment let's let me get my gear
on we'll come back and run these welds we'll go off camera I'll cut I intend to I'm going to sand
my cut marks out of my my tees that I cut out of here I'm probably going to lick them with the die
grinder on a real fine buffing pad we're going to use some naval jelly for a itch compound so
we can see a grain structure and get my safety glasses on I'll be right back or have some fun
[Applause]
well I didn't trying to just move them through there without a lot of oscillations for those
of you that didn't watch the first part of this one of the comments was
I've been running the nozzle when you're done going the way out and keep the contact here
attached to this particular doing nozzle so there's no purpose other than the insulated
here's our first side I am going to go ahead and run the second side
gonna keep my wiring here Thursday when I got hung up there
we've got a little bit of a pulse going on
[Applause]
you
we're gonna run this second well the first one we ran the Lincoln MP 211 the second
weld is the Harbor Freight wire so again I'm going to try to keep same electrical stick out
same travel speed same everything just to be consistent and then we're going to cut
each a couple of them and see what we're looking at for depth of fusion personally
I don't think there's going to be a whole lot there may be some you know the difference in
the wires themselves if we were doing small projects and fitting some stuff up around the
house and running off even 110 volt off some of these machines here you know it's still
great wired of inexpensive running no gas it's all cool so let me let me pull the trigger here
[Applause]
hey let's have a little fun side 1 and side 1 Lincoln MP 211 both of the wires
are the same they're the e7 t 1 t GS wires gasless flux core wires straight polarity
ran them both on the same values the first side since the plates were not
preheated and I welded one side turned it around immediately welded the other
treated them both the same I got a little variation in the size of my weld okay
decent profile a little less spatter this time the Harbor Freight on the first side I've got
one two three four five six seven indications of porosity again you know I tried to teach
everything the same and keep the same electrical stick out so you know things happen whether
that's critical or not turn these around side - you will notice that because of the preheat
of Weldon one and turn it around immediately welding the other one both of them look pretty
much the same you know I think I noticed while I was welding that this one was a little more
active and created a little more smoke and few mcgann I wasn't worried about that i'm looking
at my weld pool trying to trying to keep things consistent so you know the next thing the next
big question everybody's asking is what's the what's the depth of penetration what's the etch
look like so let me cut a couple of samples I think I'll what do you want me to do cut
to each do two surfaces and I'll I'll cut an etch with some naval jelly I'll be back after a while
welcome back this concludes our test that we ran on a comparison of two gasless flux core
wires I know that in the first video I wasn't being a smart aleck or anything and I said take
your pick and I remember the weld it was an outside corner joint wire kind of did the
same thing on both of them I thought they ran pretty close to the same this to me turned out
different different joint configuration slightly higher values but drastically different results
this time I am going to pick a wire you know so and here's what happened here's what we noticed
while I was welding this you know I'm looking at the size of the bead i welded two side ones and
side two they both kind of did similar things a little cold on the first one because the plates
were cold and on the second side because of the latent heat I just turned them around and
I welded the other one noticeable difference if you look close enough the second weld flattened
out a little bit okay and the whole deal here is people are asking about depth of fusion they
want to see this edge a couple of things to note the lincoln wire i mean not the way i have them
set in front of me i'm not picking anything yet bri I'm trying to remain neutral obviously good
mechanical depth of fusion into the end of the throat of the weld if I scribe some lines down
the surface of these plates you can see that it got into the throat theoretical throat of the
weld okay this one is clean this one way down deep has a little bitty tiny dot I'm not sure
if that's porosity or not but again it's still beyond penetrating both plates okay
let's go over here to this set of coupons and I have porosity way out into the face of just
below the face of this fill it well we know that's undesirable I do have some depth of
fusion that look fairly similar although I don't think this one looks to be penetrated as much
this one over here again the first weld showed porosity it looks like about 1/32 just shy of
a sixteenth below the face of the weld this one over here is clean although I see just a minor
speck in the toe okay so here's the deal you know again I'm gonna say that I wasn't picking a wire
on the first one I'm picking a wire this time and I'm going with the Lincoln I think it's cleaner I
thought it welded a little more consistently I noticed that the the Harbor Freight wire jumped
around a little bit more on me because this is so active and got a lot of spark and fume and
everything I can't really see this porosity if we were on a spray weld or something on a gas
metal arc well we'd probably pick that up while we're welding it but I wasn't able to pick that
up also I remember this being I thought it put out a little bit more fume the Harbor Freight wire put
out a little bit more fume while I was welding then again that's not something I'm trying to
watch I just kind of noticed it in my peripheral but the etches is always shows depth of fusion
and I treated these the same I got it I got to mention that when I sanded these I took him off
the saw I've left all this as a saw cut up here I treated him all the same I came in with a flapper
wheel an 80 grit flapper wheel I got rid of the saw marks and I went to a die grinder and did a
medium grit on a die grinder and I changed to a fine and I kept all of my strokes going the
same direction so I kept everything the same tried to get the same pressure and everything
again it's just a simple edge so you know let's review you know I know that this this got a lot
of reviews the first time we did it and it got into some kind of some rank comments by a couple
of years that were unnecessary so let's try to keep it clean this time I'm picking the Lincoln
wire simply because of the porosity you know our are both of them prone to porosity yeah because
it's a gasless is is the Harbor Freight always gonna have porosity I doubt it it just happened
on this particular test we could do this six or seven more times you know and it the results
may flip-flop you run into sections of wire that it may run super smooth and something
that just kind of poop out and don't run that great so I you know again I came in and to stay
consistent I cut an inch an inch in or there abouts I balled it but you know there it is so
have a little fun with it I did we appreciate your support your positive comments make sure
you subscribe to the videos new videos come out every Monday welcome i'm bob Moffatt thank you