pipe attempt 2

[davidjohnperry]

This attempt used 2.5 nexus rods in flat position and rolled it as im just feed up with working over other ppls mess
80 amps
Even ground flat to see any inclursion
What u guys thini

 

[Rrunnach]

V prep with root run & cap, or butt & shut?

Not the best for rollie pollie..............

 

[davidjohnperry]

It was v and preped tacked in for points

 

[davidjohnperry]

any advice would much be appreciated.

 

[BrokenBiker]

how many passes did you do? I don't do much pipe welding, except the occasional bit of exhaust pipe with mig but full penetration is almost guranteed with that

 

[davidjohnperry]

Just root and cap its only 2and a half inch pipe so lot of tie ins

 

[wheresmejumper]

Tack it upright and try it that way.
Try to get half way round in one go.youre wasting your time rolling pipe that diameter

 

[davidjohnperry]

thats sound its all i had in my car at the time i know you would usaly thread 2.5 inch im just gunna use this pipe to get the hang of it in the 5 g position i think then move on to bigger pipe

 

[wheresmejumper]

Its not ideal size but fixed in position is better practice than rolling.

 

[davidjohnperry]

like a snickers advert game on. but seriously im just trying to learn as many techniques and welding process i can to become a proper welder and fabricator. i sadly learnt to late in realizing what i wanted to be

 

[Rrunnach]

From a learner point of view, 2.5" is not the easiest dia to start off, on. 4" is better and easier to get round in a fixed position!

 

[davidjohnperry]

Its all dependent on what I can grab off site in off cuts

 

[Burf86]

Bigger pipe is easier I find, so practacing on the smaller pipe will push you harder

 

[davidjohnperry]

to be honest i enjoy the challenge stick is hard enough at the best of times but thats what i enjoy. if i did ever have to do a fab job for another person i would just mig it no worrys

 

[Rrunnach]

Hone the skill with say, 6mm plate, then onto pipe and, for the record, my lads get nowhere near pipe till they produce quality welds on plate.

 

[davidjohnperry]

I can post some plate sample s up later this week hopefully for you to take a look at if you could please mate

 

[Rrunnach]

Yeah, sure. Both sides, root and face............cheers.

 

[davidjohnperry]

Yeah sound mate ill try to get on it this weekend ill see what scrap I got about

 

[Welderpaul]

@Rrunnach ...... Got my BS9606 cert through the other day, now qualified for butts and fillets up to 40mm. I noticed on the cert that it qualifies me to do 'plate and pipe'

We don't do pipe but would that let me weld pressurised pipe lines..albeit MIG and downhand (Which is what my test was)

Anyone know?
Cheers

 

[Rrunnach]

This code of practice sets the standard for the welding of carbon steel pipework within the building and engineering services sector. It deals with the welding of services for water, steam and gas pipework at pressures up to and including 17.0 bar and/or temperatures from -20˚C up to and including 220˚C.

HVCA, now BESCA, see link and, scroll to page nine/ten, the rest is waffle.

http://www.summitskills.org.uk/public/cms/File/Welding/WeldingTestGuidelines.pdf

You can test out on mig, 6g being the better option.

Cheers.

Ps, I forgot to add, once an individual passes a particular process (O&A-MMA-TIG-MIG) achievement is added to skills card and, renewal required every three year.