Repairing a Fuel Tank Leak Through Gas Welding. Posted: March 15, 2025 | Last updated: March 15, 2025. Watch as we repair a fuel tank leak using gas welding in this detailed restoration process.

A new technique joins off-the-shelf aluminum lithium plates with friction-stir welding to produce a large starting blank for spin forming fuel-tank domes. Engineers at NASA’s Marshall Space ...

LNG fuel tanks account for about 30-40% of the total construction expense of a vessel and require high-quality precision welding, leading to longer production times than other components.