a 90amp will do it no problem you can get used so cost will come down on buying it
all depends on length of piece your welding up and the arc welders time out before you can continue welding it
on another note its 6mm by what size is its width ? as 3-4" id probably drill it in middle and weld it inside of it as well as the ends but thats up to you and what its intended usage is for
Hi, I'm a novice arc welder. Can someone tell me what size of arc welder I need to weld two 1/4inch metal plates together? Thanks.
How good is your supply?
Bob
will be good for a 180 amp oilcooled or an air cooled depends on what you want you can get a topweld 140 amp second hand cheap enough. whats your budget new or old as well240v x 30amp
What is a time out exacty?
Shameless plug of my review of a £90-£99 inverter arc welder from Amazon:
https://www.mig-welding.co.uk/forum...eapie-sungold-200a-inverter-arc-welder.79423/