- Thread starter eXistenZ
- Start date
Richard.
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My point was not to generate reaction but it's good common practice to clean metal before its welded. Sometimes it's not always practical and needed but it can only reduce the risk of contamination further. I'm a Tig welder by trade and scale, grease, cutting fluid etc is a big deal with tig. Yes we are talking mag here but the principle of preparation is good practice to adopt especially when learning. I've handled steel off the back of the lorry and my hands are black within minutes. Do I want that in the weld pool "no" will it cause a problem maybe maybe not but I still don't want it in the pool. A high production environment it's not feasible but the point I am making it can only help things further.
backpurge
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Depends on what you're planning on reaching round with fella
Liquid Metal
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If that is being galvanised, wether it be hot dipped or electroplated, it is best to weld around the cleat fully. All four sides. If you have a point where to pieces of steel are touching but not welded, ver time, moisture and O2 will get at it causing it t rust, and runs of rust snaking their way down the side of something look terrible and ultimately defeat the object of galvanising it to start with.
(if that makes sense)
General practice with tonnes of structural steelwork ive welded over the years for Network Rail, Oil works etc etc
(if that makes sense)
General practice with tonnes of structural steelwork ive welded over the years for Network Rail, Oil works etc etc
