[TheForge] OT- welding aluminum

[Larry Brown]

I'd second this idea. Check for crap in the nozzle of the mig, you should 
be able to feel and hear the gas come out. Make sure the regulator and tank 
are on (not that I've ever forgotten ). At last resort check by taking 
things apart and check flow from tank to gun. Could be solenoid valve, mine 
stayed on once, was able to clean it.

Larry Brown


At 08:06 PM 9/11/2006 -0700, you wrote:
>First thing i'd suspect is a shielding gas failure...pf
>
>Andy Gladish wrote:
>>Yesterday I was MIG-ing some 1/8 Al (yeah, yeah, asking-make that Begging
>>for trouble) and suddenly went from beautiful welds to blobs with very
>>little penetration...just crusty blobby cruddy stuff that looked like it was
>>squirted on from a can of Molten Aluminum Silly String.
>>Tried all kinds of changes in the settings but couldn't get it to
>>flow...ideas? Suggestions? Other than, get proper equipment...
>>I did wire brush (dedicated SS brush) the surfaces, and it was all new
>>stock.
>>Thanks for any input,
>>Andy Gladish
>>Guemes Island, WA