Butt welds - any thoughts?

[Jezzer99]

Hi,
Been practising my butt welding, any comments appreciated!

Cheers

 

[runnach]

# 3 looks the biz of the bunch on the face side, not too hot with pene tho on the root side, it looks a thinnish piece of sheet, try using a copper backing plate, or better still, a ceramic tile!

Getting there though, good stuff.............no brown stuff either!

 

[weldequip]

Stick it on Ar/CO2 Jezzer & you will get a flatter, smoother weld
weldequip

 

[runnach]

Stick it on Ar/CO2 Jezzer & you will get a flatter, smoother weld
weldequip

Evening weldequip, what gas do you think the lad is using??? From a previous post the lad mentions gas flow rate, not gas type, I just assumed ar/co2 was gas spec. Serious question tho, what shielding do you reckon is being used from your observations, interested mind asks?

Cheers........

 

[weldequip]

Co2

 

[runnach]

Ah of course with the high profile, I now also note not a lot of spatter, another characteristic of using co2, last time I used yon stuff was many years ago and, I seem to remember the use of a heater was required also?

Thanks for your reply.

 

[weldequip]

I now also note not a lot of spatter, another characteristic of using co2,

More spatter is usually associated with using CO2, he could be using a mix, but looks like CO2 to me.
weldequip

 

[Jezzer99]

It is Ar/CO2 that I'm using - still on small bottles of the SIP stuff that you can pick up for a crazy price at the local well know autofactors

I seemed to fluctuate between too little penetration and too much in my opinion.