Welding Certification test Q&A and tips and tricks
zorlac
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    Mon Jan 18, 2010 7:45 pm

I know what fcw3269 is talkin about as far as the heat settings. Every machine will perform differently, and the way i look at it, and this is all in my humble opinion, welding is more feel than science. If your using 7018 you really dont have to worry much about slag, as long as you have your heat dialed in. Now if your talkin about 6010 ,thats when you have to get all archealogical about it and pick out the slag with said sharpened objects. 7018 dialed in should just roll off the weld by itself, if properly set. Again this is a feel for the machine youre working with. I would assume theyd let you run a few stringer beads before the test to best find the settings, fcw3269 has some really good starting points, but again those are refrences. The machine and your natural ability to pick up on the way that puddle is flowing will tell you all you need to know. Yes , my spelling and grammar are hideous, but i can lay a pretty decent bead :D Cheers to everyone im new on this forum and hope to obtain all your wisdom.
billyolds
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    Tue Aug 17, 2010 10:06 pm
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    dunedin/clearwater

zorlac wrote:I know what fcw3269 is talkin about as far as the heat settings. Every machine will perform differently, and the way i look at it, and this is all in my humble opinion, welding is more feel than science. If your using 7018 you really dont have to worry much about slag, as long as you have your heat dialed in. Now if your talkin about 6010 ,thats when you have to get all archealogical about it and pick out the slag with said sharpened objects. 7018 dialed in should just roll off the weld by itself, if properly set. Again this is a feel for the machine youre working with. I would assume theyd let you run a few stringer beads before the test to best find the settings, fcw3269 has some really good starting points, but again those are refrences. The machine and your natural ability to pick up on the way that puddle is flowing will tell you all you need to know. Yes , my spelling and grammar are hideous, but i can lay a pretty decent bead :D Cheers to everyone im new on this forum and hope to obtain all your wisdom.
I beg to differ on not worrying about 7018 slag...in the last 6 people testingfor a aws 6g pipe cert at my school, tig open root, tig hot pass, 7018 out, the ones who failed their first try was do souly to slag inclusions. Agreed if dialed in, it should just peel off, but that does not mean we arent taught to go over every pass very maticulously(sorry if i speeled that wrong, i to am not an english major). Today my slag was falling off before i even got a chance to look at it, but upon closer inspection there was still bits of slg in different areas. This is true as well in getting a structual steel cert. biggest reason they fail is slag.
6010 will run through almost anything, we try to get the slag out but never stress about it, just run it hot and it will burn out any slag. Our teachers call it a cleaning rod because of this property.

As far as a wire wheel not being allowed...we're allowed to have one but told that if we are running it right we do not need one. Our teachers also have horror stories about people using them.

My advice for finding your heat setting is to find out what is too hot, then come down from there. The hotter you are with out being too hot, the better your welds should be. On 3/32 7018 2g filler passes im running 110amps, if i try and run the whole rod, it will burn up, i run it a half rod at a time. Its on 8" pipe so running a half rod at a time works out great and lays in amazing.
It is what it is...
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