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Thread: Welding Old Metal
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10th October 2021, 04:50 PM #1Most Valued Member
- Join Date
- Aug 2015
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Welding Old Metal
I have some sheet steel 1000 x 500 x 1 that has been painted and is quite rusted, I want to weld a barrier of 16mm RHS around the edges to for a barrier. I have ground all the rust and paint from the sheets. I tried a test and the weld does not seem to be sticking and seems to be in small balls along the join.
I am using a CIG Arc Inverter 140 amp welder.
Are my rods too old?
Does the sheets need to be cleaned with something else?
In short, what am I doing wrong?
Thanks
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