Nice job on the fuel tank! Just a couple of observations from someone who worked on aluminum fuel oil tank trucks for two decades. I am assuming that the angles are going to be bolted to the frame in some fashion, and it is hard to tell, but it looks like the bottom (heel) of the angle is not welded. If I were doing my tank in aluminum (I am actually going to use Stainless), I would have put a shoe on the sides of the tank, welded all the way around. Then, weld the angle brackets to the shoe, making sure to weld the heel. As it is now, if you have any crater cracks, or any cracks start due to vibration or flexing, the two vertical welds are perfect candidates for a failure, since they are the primary welds holding the bracket to the tank. Should they fail, at best the tank will come loose. At worst, the crack will either propagate into the base metal of the tank, or allow the bracket to oilcan and crack the tank, either of which will result in fuel leaking. If you weld a shoe to the sides of the tank, and the brackets to the shoes, you have a much better chance of not dumping the fuel should something cause a bracket to fail. The bracket may crack, or even pull clean out, but it will not affect the tank directly. Other than that, the welds look good, and unlike many tanks I have seen done in aluminum, welded inside and out! Nice job!
_________________ Dismantalus, Fabricatus, Assemblus..... Certified Welder, Certified Welding Inspector, Full Time Car Freak...In New Jersey no less!
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