Hi,
I just bought myself a new Merkle MobiMIG 180K which runs on 1ph 240V. It has the Cold MIG function which enables better welds in thin sheet (0.6mm and upwards as claimed by the manufacturer). My plan is to do primarily thin sheet metal, typically in 1mm sheet metal. I would like beautiful, smooth welds (not tall) and with low risk of burn-through. Can anyone recommend a suitable gas mix for that application? I was told to go 90% Ar, 5% CO2 and 5% O2, but these bottle can only be rented in Denmark where I live, thus for a hobby workshop it becomes expensive - I have to pay about 1 Euro pr day incl VAT for renting.
It is very easy for me to get a 100% Ar or a 85% Ar + 15% CO2 bottle. The latter is a universal mix - but I will never weld anything above 5 mm in thickness. How does a 100% Ar perform on thin sheet - will the welds become very tall?
Is it possible to mix your own gas if I cannot find them premixed?
Lucas
I just bought myself a new Merkle MobiMIG 180K which runs on 1ph 240V. It has the Cold MIG function which enables better welds in thin sheet (0.6mm and upwards as claimed by the manufacturer). My plan is to do primarily thin sheet metal, typically in 1mm sheet metal. I would like beautiful, smooth welds (not tall) and with low risk of burn-through. Can anyone recommend a suitable gas mix for that application? I was told to go 90% Ar, 5% CO2 and 5% O2, but these bottle can only be rented in Denmark where I live, thus for a hobby workshop it becomes expensive - I have to pay about 1 Euro pr day incl VAT for renting.
It is very easy for me to get a 100% Ar or a 85% Ar + 15% CO2 bottle. The latter is a universal mix - but I will never weld anything above 5 mm in thickness. How does a 100% Ar perform on thin sheet - will the welds become very tall?
Is it possible to mix your own gas if I cannot find them premixed?
Lucas