vertical up - moved from arc welding forum

[NeilH]

just a quick question with no intention to thread hijack.

but when mig welding and doing a vertical weld, is it best travel up or down?

 

[madkayaker]

up i think but someone with more experience might disagree

 

[Country Joe]

If it's really thin material, you may want to try vertical down. This tends to reduce the penetration of the weld.
CJ

 

[runnach]

just a quick question with no intention to thread hijack.

but when mig welding and doing a vertical weld, is it best travel up or down?

Hi Neil, depends on material thickness mate, 3mm and less, vert down, above 3mm, vert up, for arc always vert up, unless using 6011's for example.

Cheers.......

 

[will123thomas]

i always been taught to go up, gives you something to build your weld on once you got started.

 

[runnach]

Like I said above, a lot depends on metal thickness, also job being welded, is it structural or cosmetic? Cosmetic 3mm matl is far quicker welded vert down. I'm certainly not stating what you were taught is incorrect.

Cheers...........

 

[will123thomas]

Like I said above, a lot depends on metal thickness, also job being welded, is it structural or cosmetic? Cosmetic 3mm matl is far quicker welded vert down. I'm certainly not stating what you were taught is incorrect.

Cheers...........

i dont think you are, i mostly use 6/8mm mild steel so i use vertical up, gona be doin vertical vee butt in MIG tomoro for an assessment peice for my apprenticeship did it with MMA today was well impressed with the caps bit to much penetration tho (sorry to hijack the thread lol)

 

[runnach]

i dont think you are, i mostly use 6/8mm mild steel so i use vertical up, gona be doin vertical vee butt in MIG tomoro for an assessment peice for my apprenticeship did it with MMA today was well impressed with the caps bit to much penetration tho (sorry to hijack the thread lol)

No worries mate, I never thought I'd hear a young lad complaining of too much pene tho

Good luck with tomorrows assessment................

 

[will123thomas]

No worries mate, I never thought I'd hear a young lad complaining of too much pene tho

Good luck with tomorrows assessment................

haha i dont need to worry bout that!! ill need the good luck, practice is goin really bad runs are wayyyyy to big with huge caps

 

[runnach]

You need to focus poking rod into weld pool only, these other distractions do not pay the bills...........geeeeeeeeez

 

[weldingscotty803]

i do mostly vert downs on the frames i build but there 3mm . if i can though i always try to have them horizontal as i feel alot more comfortable, but sometimes you cant have it the easy way