deep penetration

[Rick]

when welding thick steel how do you get really good penetration iv been doin a bit of heavy duty work today but its not strong enough and thats with the welder on max. steel was about 8mm thick but the welds broke off once i started hammering it about.... its for a folding bollard before you ask

 

is its juts cuz im shit at welding or you reckon i need more power

[kirk10]

what amp welder is it

[Rick]

dunno off the top of my head. i reckon it might be cuz it was a bit windy today might have blown all the co2 away

[Fiesta Steve]

You'd need a very big amp welder to get good penetration on 8mm steel.

 

Welding with no gas won't help either.

[X FLOW EDDY]

You could do with a big stick welder for that, 140-150 amp with a 3.5mm rod !!!

[V8ian]

Weld prep it by grinding back to a Vee, If needed, do a penetration run deep into the Vee and then do a run too one side of the penetration weld, and then to the other side, wire brushing inbetween runs to get things clean, then run a capping weld over the top.

[Rick]

Weld prep it by grinding back to a Vee, If needed, do a penetration run deep into the Vee and then do a run too one side of the penetration weld, and then to the other side, wire brushing inbetween runs to get things clean, then run a capping weld over the top.

 

that sounds like a good idea. nice 1

[Trevmk3]

thats how we was taught at Rolls Royce training for thick plate