I've been TIG welding for a few years now. My welding is done in a home shop/hobby situation. I've had no formal welding edu-ma-cation at all except a few hours spent with Ernie (we live within driving distance). Given the previous statement, I risk asking a "stupid question".
What is the reason for the "stack of dimes" look for TIG welding. I know how it is made, what I mean is, why? Is there a reason why the S-O-D is a better weld.. I've often TIG welded a fillet weld by just laying the filler rod into the V and heating with the TIG torch. Or a butt joint without any filler rod at all. My limited experience tends to believe that the resulting weld is just as strong. Fill me in please.
Lane