marknotgeorge
Doing sums for a living since 2009.
- Messages
- 473
I've been welding the final piece of flange on the LH door frame of my TR7, and have noticed that my welds are sooty. I'm using Ar/CO2 mix in a disposable (turned up to full) and I can hear it hissing. I've cleaned the metal to shiny with a flap wheel in my grinder. My welds are strong enough, though. Could it be because I forgot to clean the other side? Or is it just the old metal?