Make sure you clean the filler rod completely. You may just be wiping
the last few inches, and then welding with contaminated fill.
My .02
JR
Dweller inthe cellar

me wrote:
When welding mild steel, what is the most likely cause of dull welds?
Running several beads, I will have one that looks nice and shiny with the
hint of different colors -- almost iridescent looking. The very next one
will be flat gray. Not visibly porous, but not healthy looking.

This is while welding in subframe connectors on an older vehicle. Are the
dull welds structurally inferior? Should they be ground out and redone?

Thanks!


--
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Home Page: http://www.seanet.com/~jasonrnorth
If you're not the lead dog, the view never changes
Doubt yourself, and the real world will eat you alive
The world doesn't revolve around you, it revolves around me
No skeletons in the closet; just decomposing corpses
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Dependence is Vulnerability:
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"Open the Pod Bay Doors please, Hal"
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