this is fluxcore with my lincoln 100hd. im finding it hard to butt weld if there are small gaps. whats the best way to fill them?

also having trouble welding in corners like this. not really sure what to do here, seems like i just cant get the bead going well.


this is what i did with my friends mig w/gas. i was welding for around 45 min to an hour when i did this.


teaser pic of the car its going in. 84mm lsvtec turbo. should be fun

 

looks like ****... i aint gonna lie.

push the weld, dont pull it.

 

when MIGing with a gap, i like to kinda weave side to side and it builds a nice bead

 

hhahah i never said it looked good. i know its crappy thats why im posting, to ask for advice not show how good i am(or arent)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">looks like ****... i aint gonna lie.

push the weld, dont pull it.</TD></TR></TABLE>

push with MIG?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">looks like ****... i aint gonna lie.

push the weld, dont pull it.</TD></TR></TABLE>

HUH? i thought you were supposed to start a puddle and then drag away from it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by m R g S r &raquo;</TD></TR><TR><TD CLASS="quote">

HUH? i thought you were supposed to start a puddle and then drag away from it?</TD></TR></TABLE>

correct.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by m R g S r &raquo;</TD></TR><TR><TD CLASS="quote">

HUH? i thought you were supposed to start a puddle and then drag away from it?</TD></TR></TABLE>

i dont like doing it that way. sorry.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">

i dont like doing it that way. sorry.</TD></TR></TABLE>

well, i try to stay pretty perpindicular, so whichever way i go with it, its neither "pushing" or "pulling", I guess.

 

practice, practice, practice, pracitce.....thats all you can and you will get the hang of it.

good luck and keep practicing, youll get it!!

 

Pushing is like this \ while moving -&gt; and pulling is like this \ while moving &lt;-

I hope that makes sense. Each has it own purpose. If the settings on the machine stayed the same regardless, pushing will be a hotter weld. BTW for large gaps I try and bridge the gap with tacks. After you get some experience you'll learn how to control the puddle better and realize that for gaps you'll have to build and let cool (couple seconds until it's not molten metal) and repeat. But the goal is to not have gaps. Welding is only like 25%, the rest is set up. The better the pipes or whatever meet, the better your results.

 

that sucks im 16 and can do those welds spot on

 

yeah man....that's ahh...pretty horrible. You need alot of improvement. Sure you wanna put that on that car...looks like too nice an engine bay to fill with HMT welds.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mugenEGG &raquo;</TD></TR><TR><TD CLASS="quote">that sucks im 16 and can do those welds spot on</TD></TR></TABLE>

dude thats because you are awesome.


i am pushing not pulling. the piping is very cheap ill admit that

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RC000E &raquo;</TD></TR><TR><TD CLASS="quote">yeah man....that's ahh...pretty horrible. You need alot of improvement. Sure you wanna put that on that car...looks like too nice an engine bay to fill with HMT welds.</TD></TR></TABLE>

unless you can crawl in the few inches under my car and see my downpipe im cool with it.

miller thanks for the advice, thats the stuff i was looking for

 

It's kind of a good start.
flux need a LOT more practice than Gas mig...

and it's not because you are using a MIG that you can weld dirty crap peice of **** togeter, damn, clean those part's a bit... get a wire wheel, brake cleaner ( acetone ) clean rag and wipe... you will be very surprised they way your weld's will improve..

another thing.. Aluminized coating are the worst possible thing to breath when welding, aside some galvanized coating, but it's in the same familly... remove it with the wire wheel I told you to buy... it will be way more easy to weld, and it will improove in strenght and apearance..

just a few thought...

post some other pic's !
jp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">

dude thats because you are awesome.
r</TD></TR></TABLE>

lol

 

with the mig push and weld it in 1/4s so you are welding vertical down(downhill) pushing will result in a flatter, wider bead and it's easier to avoid burnthough this way. If you have a decent machine with consistant wire feed it's easier to just move in a straight line or do a forward-backward motion. Kind of move the the gun forward then whip then backwards in small increments.

If you have a shitty mig with inconsistant wirefeed/volts it's easier make circles sometimes as it kind of evens out the irratic bullshit you have to deal with.

I actually have the lincoln 100hd sitting around the house somewhere. I havent used it in forever though. I might get bored and dial in some settings for generic exhaust tubing with .030 flux wire for ya. I might even post pics

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ManBearPig4silly &raquo;</TD></TR><TR><TD CLASS="quote">with the mig push and weld it in 1/4s so you are welding vertical down(downhill) pushing will result in a flatter, wider bead and it's easier to avoid burnthough this way. If you have a decent machine with consistant wire feed it's easier to just move in a straight line or do a forward-backward motion. Kind of move the the gun forward then whip then backwards in small increments.

If you have a shitty mig with inconsistant wirefeed/volts it's easier make circles sometimes as it kind of evens out the irratic bullshit you have to deal with.

I actually have the lincoln 100hd sitting around the house somewhere. I havent used it in forever though. I might get bored and dial in some settings for generic exhaust tubing with .030 flux wire for ya. I might even post pics </TD></TR></TABLE>

I was under the impression that vertical welds should always go up.

 

Who made your manifold?

 

Get some flat stock.


Why does every one insist on learning to weld on pipe?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by E-Rok &raquo;</TD></TR><TR><TD CLASS="quote">

push with MIG? </TD></TR></TABLE>


yeah seriously.... how the hell are you supposed to do that????? i mean yeah it can be done but say hello to 0 penetration....


which is the real problem here.... you need to move slower dude...

dont just look at the weld... listen to it.... listen to how it sizzles.... what you want is to hear something thats consistent.... not pop pop pop just a long zaap.

ill leave you with that tip... go weld and bring me more pics...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k24em2 &raquo;</TD></TR><TR><TD CLASS="quote">Get some flat stock.


Why does every one insist on learning to weld on pipe?</TD></TR></TABLE>

haha because i had dyno time in 2 days and a car that didnt run


manifold was made by ineedhelp on here, but i bought it used. the welds i showed are my extension and downturn on the downpipe, just so i can drive the car until my exhaust comes. i did clean it up, that was just a quick pic i took.


if i go real slow it burns through the pipe with my setting on b. on a it doesnt seem to work as well.


ive gotta get some practice with this one day when im not exhausted from working a full day and then some and going out in the garage after ive been up for 15 hours

 

one more recommendation i have is that you use Lincoln flux core wire.... i had gotten my welds on my fluxcore down pretty good before the first roll of wire ran out... but when i bought new wire i decided to go with Lincoln cause all my other welding machines are Lincoln.

man did it make a difference!! i didnt think it would have been that drastic of a difference.... obviously the fluxcore wire that came with my crappy machine wasnt very great but if i would have started off with the licoln wire i probably would have had better looking and penetrating welds sooner.... but using a machine with crappy materials or settings and being able to learn to weld good on that will defitnatly teach you a hell of a lot more.... but that all depends if your gona be welding a lot or not.

oh yeah and like the comments above.... even though its mig or flux or even stick welding.... if you do prep work it will ALWAYS make a difference! sometimes it doesnt matter though... like in most stick arc welding cases...

 

damn didnt know that about the wire...

right now to prep i just run the wire brush on it a few times till i can see its like scuffed up the surface. i also do that with the ground if i can get to it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by E-Rok &raquo;</TD></TR><TR><TD CLASS="quote">

I was under the impression that vertical welds should always go up.</TD></TR></TABLE>

only on thick structural stuff...I go vertical up if its 1/4" or thicker. it does get better penetration but its harder to make look nice. on thin tubing vertical down is easy, looks good, and is as strong as the base material so its the way to go.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LordAphotic &raquo;</TD></TR><TR><TD CLASS="quote">

yeah seriously.... how the hell are you supposed to do that????? i mean yeah it can be done but say hello to 0 penetration....

</TD></TR></TABLE>

no, i'll go weld and cut some cupons and show you if needed.