Thin Stainless Outside Corners Mig Welding Forum This is a first post from a year long reader looking for advice and feedback on some recent mig welds preformed on 16 gauge 304l stainless. the current project is a set of hanging boxes for our tractor. Had a question pertaining to outside corners. i don't do them very often but when i do i always feel rushed trying to make the weld as far as not letting the puddle leak over the sides. filets seem much for forgiving in being able to take my time and fill in the joint.
Thin Stainless Outside Corners Mig Welding Forum I was welding some stainless outside corner joints for practice, and wondered if anyone ever uses filler for this. when i weld it autogenous, it comes out great. I personally just spent two days laying some beautiful welds down on some 3 8ths stainless. stuff you could post on ig and then i proceeded to grind down half the welds, and mig weld tubing ontop of it. I’ve spent years dialing in mig on 304 stainless steel, from botched beginner jobs to pro level fabrications that last. you now know the filler choices, settings tweaks, and fixes that turn okay welds into reliable ones—saving you rework and headaches. As we continue our series on outside corner joints, we move to welding stainless steel. there are a few different things you need to do when welding stainless when compared to.
Thin Stainless Outside Corners Mig Welding Forum I’ve spent years dialing in mig on 304 stainless steel, from botched beginner jobs to pro level fabrications that last. you now know the filler choices, settings tweaks, and fixes that turn okay welds into reliable ones—saving you rework and headaches. As we continue our series on outside corner joints, we move to welding stainless steel. there are a few different things you need to do when welding stainless when compared to. Your weld seams are going to shrink, and leaving a gap just allows them to pull together even more as the shrinking occurs for an even greater panel movement. a gap at the outside seam (red arrows) will have the outer panel pulling inward, with likely a low spot just outside that rounded corner. Using a mig welder for stainless steel requires you to set your welding machine properly before you start. the majority of them come with an instruction manual chart of recommended settings. You may want to consider using some form of a heat sink while you are making the long welded seams, this will help to minimize the distortion that will occur, a couple of copper or aluminum bars clamped to the outside of the corners should help. While it’s possible to weld stainless steel with 100% argon shielding gas, it’s not recommended because it will result in slower welding speeds and wider beads which won’t be appropriate for most welding applications.
Thin Stainless Outside Corners Mig Welding Forum Your weld seams are going to shrink, and leaving a gap just allows them to pull together even more as the shrinking occurs for an even greater panel movement. a gap at the outside seam (red arrows) will have the outer panel pulling inward, with likely a low spot just outside that rounded corner. Using a mig welder for stainless steel requires you to set your welding machine properly before you start. the majority of them come with an instruction manual chart of recommended settings. You may want to consider using some form of a heat sink while you are making the long welded seams, this will help to minimize the distortion that will occur, a couple of copper or aluminum bars clamped to the outside of the corners should help. While it’s possible to weld stainless steel with 100% argon shielding gas, it’s not recommended because it will result in slower welding speeds and wider beads which won’t be appropriate for most welding applications.
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