22 gauge stainless steel plate!!!!help

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Im trying to fillet weld  22 gauge stainless plate with my 185pro tig welder,i have it set at 20amp and 30amp but it kepts warping the thin plate,im useing a     .35 feeding rod I even tryed a 1/16 rod, both 308L rods.?????????? 22gauge is that also to thin for tigging FILLET??
Reply:Are you doing it all in a line? If so, this is waht is warping it. Only weld about a 1/2 and then move to the other side and repeat. This will help keep the heat displaced enough for it not to warp. .035 wire should be good enough. Tha amperage can be controlled by the footpedal. I might be wrong, but this is the way I have done it with good results.
Reply:The only way I have been able to do this is to clamp a large aluminum heat sink on the other side, preferably one that hugs the inner corner real tight.  In this way, you can keep the parts aligned and suck away the heat with the aluminum.  If you can get an aluminum heat sink on the outside as well, then you are even better off.  The idea about staggering your welds works also to minimize distortion.  Don't forget though, that your bead shrinks on solidification, and some distortion is as inevitable because of the SHRINKAGE.  Weld shrinkage is as inevitable as death, taxes and gravity.Regards, Nelson
Reply:thx for your help!
Reply:I used to use aluminum plates on top and bottom when I welded sheetmetal like sinks and kitchen hoods. 1/4" on bottom, 3/8-1/2" plate on top. It helps keep flat metal flat, and it takes the heat away enough to kind of insulate the thin metal.
Reply:I am very new to tig--taking a course in MIG and TIG at local community college.  I love this forum and subscribe to several others--I like to learn from many sources.I found this reference today athttp:/www.welding-advisers.com  's newsletter emailed to me today, which addresses your question --(I cannot take responsibility for this information, I am just passing it on as it appears appropriate)How to do it well: Welding thin Stainless SheetsQ: Gas Tungsten Arc Welding thin sheets of austenitic stainless steel type 304L results in unacceptable distortion. What can be done to improve results?A: Compared to carbon steels, austenitic stainless steels have higher thermal expansion and lower thermal conductivity: these are the main reasons contributing to unacceptable distortion.GTAW is a proper process to weld such jobs but, due to the low current employed, manual operation may be difficult to control. Better results could be obtained by mechanized welding.Other precautions include proper fixturing, pulsed current if possible and step welding. Good cleaning and preparation are always important.Constant current, non pulsed power supplies of drooping-voltage characteristic are used with direct current straight polarity, electrode negative. Pulsed current may provide better weld control to avoid burn through.Most widely used nonconsumable tungsten electrode type is that with 2% Thoria (EWTh-2). High frequency should be used to start welding and to avoid contamination due to electrode contact with the weld pool. Argon is used as the shielding gas.The conical electrode tip can be ground with different apex angles. A narrow angle of about 15 to 30 degrees tends to produce a relatively wide bead with shallow penetration. A larger angle of 60 to 75 degrees would give a narrow bead with increased penetration.Thin gage stainless steel sheet should be properly clamped and aligned to avoid buckling. Fixturing of the abutting edges, with no gap for thickness up to about 1 mm (0.040"), is done with copper chill bars, usually nickel plated.The backside chill bar includes a groove, placed under the joint, where argon can be provided to prevent backside oxidation. The two front side chill bars should be beveled to make room for the torch.Good contact between stainless and copper bars helps in removing excessive heat. If the clamp down bars are very close to the line of welding and held with considerable pressure, a compressive force will act on the seam while welding, as lateral expansion is prevented. The upsetting force will reduce shrinkage stresses and distortion.Tack welding should be provided at close intervals but with a proper sequence that will maintain alignment.Pulsed current if available may be advantageous in reducing heat input. Current is pulsed at regular intervals between a background level and a peak level. A stable arc is more easily maintained.In case of long seams, short welding stretches should be performed, at relatively far locations, taking care to let the joint cool down between welds. The start and stop of each weld and the tack welds should be ground to eliminate possible flaws in those places.Implementing most of the above precautions should result in weldments of reduced and acceptable deformation.