the welds don't look too bad for tig welds, and grinding them smooth eliminates stress risers.
, the pictured welds were not my concern, although little can be judged by just looking a picture
Quote: rule of thumb in my field (I'm an engineer who does structural analysis on welded steel fabrications in large equipment) is that grinding a weld smooth will yield a ~2x improvement in fatigue life in steel, I don't have experience with aluminum.
However the hidden sticking point is fatique life might increase by grinding a weld smooth, but ultimate strength may decrease, pick your poison.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
, the pictured welds were not my concern, although little can be judged by just looking a picture
