one for the professional arc welding guys

[backpurge]

From what i did understand of spray transfer there is no contact with the work piece, no short circuit like regular MIG welding, and i was told as long as you have CO2 in the mix you can spray weld. It's a lot hotter than short circuit and gives more penetration

Try welding in spray transfer with pure CO2

 

[Jay1st]

ok so pure Ar is the way to go for spray tranfer, i always learn something on here

 

[backpurge]

ok so pure Ar is the way to go for spray tranfer, i always learn something on here

Unfortunately it’s not that simple, you need active components like CO2 and O2 in the shielding gas when welding steel to help focus the arc and give you fusion otherwise the weld will just sit on the top of the parent material, there is a mountain of literature which makes it clear which gases to use for which materials, no need to go re inventing the wheel

 

[Jay1st]

Unfortunately it’s not that simple, you need active components like CO2 and O2 in the shielding gas when welding steel to help focus the arc and give you fusion otherwise the weld will just sit on the top of the parent material, there is a mountain of literature which makes it clear which gases to use for which materials, no need to go re inventing the wheel

Aahhhh not trying to, only getting the correct info and you seem to have it.
I know CO2 is needed for penetration thus the mix Ar / CO2.
Seems logical to have a minimum CO2 in the mix.

 

[backpurge]

Aahhhh not trying to, only getting the correct info and you seem to have it.
I know CO2 is needed for penetration thus the mix Ar / CO2.
Seems logical to have a minimum CO2 in the mix.

It a bit of a guesstimate but 5% CO2 for sheetmetal, 12% up to around 6-8mm and 20% for heavy stuff

 

[Jay1st]

It a bit of a guesstimate but 5% CO2 for sheetmetal, 12% up to around 6-8mm and 20% for heavy stuff

As we're talking about spray weld , is there a difference in operation with globular ??