So I work in construction as a welder and I'm welding columns onto plates or welding one half onto the other half thats already on the ground so they basically put the column in place for me and I weld it in the middle to join the two columns. But I've been having a issue with porosity on the end and sometimes the beginning of the beads which are on the corner of the column which is where I stop to reposition myself to weld the other side of the column can anyone give me some advice on this please. Thanks in advance
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I am guessing you have been doing this for a while as well as hold certs for this type of work, my only suggestion would be that you make sure your rods don't get wet. I am assuming you use 7018? The low hydrogen type rod so if you don't keep them in a rod oven or whatever they are called, that might do it if they get wet.if there's a welder, there's a way
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Porosity at the beginning of a 7018 bead is almost always caused by too long of an arc at start up. Thus you loose your shielding and you get porosity. Shorten up your arc and don't start up too far away from where you want to start your bead.
Ensure you wire wheel off the rust and scale a bit before you start also.Lincoln Idealarc 250
Miller Bobcat 250
Thermal Arc Hefty 2 feeder
Thermal Dynamics Cutmaster 52
Torchmate CNC table
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I weld structural steel for a living. Never had the wind cause me problems when 7018 stick welding. Dual shield flux cor or solid wire with gas, yes. Wind will create havok for you but never with stick.Lincoln Idealarc 250
Miller Bobcat 250
Thermal Arc Hefty 2 feeder
Thermal Dynamics Cutmaster 52
Torchmate CNC table
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