Stitch TIG'ing a butt joint on 18ga sheet

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OK, I know stitch TIG is good for preventing warping.I do a little section here, move to the other end, do one there, etc.However, once I've done the whole thing, don't I end up with an uglyseries of little holes between the stitches?  Or, do I overlap them?I apologize if this should be obvious, but I mused that goingover an area twice (even after it cools) could change the metalurgy.
Reply:Going over an area once causes a change in the metal's metallurgical properties. Going over it again to tie two beads together isn't going to change it significantly more.What are you building/fabricating? Assuming you are just welding regular mild steel, you really aren't going to cause any change in the metallurgical properties of the steel to make any practical difference, regardless of how many times you weld over the same spot.Visit Tensaiteki.com
Reply:Depending on what you're building, you may not necessarily need to make a continuous seam of weld.  It is fine to only weld a few spots if that's all it needs to stay together.  Now if it needs to be water tight, well that's a different story....MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op