Newb needs critique of my welds

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First of all, thanks for looking.  I have just a little Lincold HD 3200, a 110 MIG welder.  In these welds, I am just using the flux core wire (.035) and welding on 2"x 2" mild steel square tubing, 3/16" thick.I don't really know what I am doing (never had a class, just have practiced on about 2 lbs of flux), but I am hoping with some constructive pointers I can improve. Attached Images
Reply:all in all not bad....turn the wire down and the heat down a bit and it will eliminate some of the ecess spatter. when you have it set correct it should look close to this, which isn't perfect (I was setting my machine .035 flux core on a 110 mini mig with this pic). Attached ImagesIf it's too . get an office jobLincoln wp225g7 Lincoln 250 idealarcFrankenstein O/A set-up Weld-tech  tig set-upLincoln sp 175 plus profax  arc gouger
Reply:The fact that you have some slag coverage is good. It shows you are cooking most of the impurities and flux out. I see some inclusion in a few places. That bead in the 3rd pic is about what you'd like to have all the time. You can see it appears a bit hotter than some of the others, but nice smooth slag coverage and it'll be a nice bead underneath. It was hotter because you were welding on a edge with little to carry off any heat. Knowing that you can adjust from there. I'm not sure if I see excess spatter or the zoomed in pics are making things larger. I'm thinking your looking pretty good to this point. Go for the sound next. Adjust for as much hiss and you can get. Most common T-11's and T-GS wires run better close to spray.Last edited by Sandy; 04-08-2009 at 12:37 AM.
Reply:Originally Posted by SandyThe fact that you have some slag coverage is good. It shows you are cooking most of the impurities and flux out. I see some inclusion in a few places. That bead in the 3rd pic is about what you'd like to have all the time. You can see it appears a bit hotter than some of the others, but nice smooth slag coverage and it'll be a nice bead underneath. It was hotter because you were welding on a edge with little to carry off any heat. Knowing that you can adjust from there. I'm not sure if I see excess spatter or the zoomed in pics are making things larger. I'm thinking your looking pretty good to this point. Go for the sound next. Adjust for as much hiss and you can get. Most common T-11's and T-GS wires run better close to spray.
Reply:Inclusions - Defects trapped within the weld metal (such as bits of slag).  In all honesty, it's pretty damn good, and isn't going to get worlds better on innershield flux core from a 110.  You need to wrap your welds around the corners though.  That will keep you from getting those craters/low spots on the corner of the tube where stresses are concentrated.  You should also pause and hold briefly at the end of the weld to fill in that crater.
Reply:Originally Posted by SupeInclusions - Defects trapped within the weld metal (such as bits of slag).  In all honesty, it's pretty damn good, and isn't going to get worlds better on innershield flux core from a 110.  You need to wrap your welds around the corners though.  That will keep you from getting those craters/low spots on the corner of the tube where stresses are concentrated.  You should also pause and hold briefly at the end of the weld to fill in that crater.