inverter fusion set-up and gas?

[dubber91]

Alright guys,

Just got myself an inverter fusion TIG welder, and wondered what settings are normal for after-gas time and ramp down? current/thickness approximations would be nice too

Also, what gas should i look for? Is co2 ok or does it have to be argon? Any cheap suppliers?

cheers

Steve

 

[shenion]

You must use pure argon or argon/helium mix.

Post gas flow about 10sec/mm. So 1.6mm would be about 15 seconds.