"David Billington" wrote in message
...
| Sounds about what I would have said. I found there is a subtle change in
| the surface of the aluminium before it drops on the floor, I learned to
| recognise this and all went fine. I have never used anything other than
| standard OA welding googles for Al and never had an issue with being
| able to see what I was doing clearly. People mention using special
| lenses to cut the flare from the glowing flux but I have never
| experienced this. I have never welded Al with OA extensively and these
| days would typically use TIG unless I had a benefit from using OA,
| typically it leaves a more ductile weld which may be beneficial if you
| are doing panel work.

I'm interested in how you do this, since most information on your method
is highly lacking on the web. Please, tell me more!