Welded aluminium buys geometry, not strength. What fabrication allows that tooling cannot, where heat affected zones and brackets cause trouble, and when to choose otherwise.
A tank holds a mass that moves. Why the half-full case is the hard one, where a baffle belongs, and what baffling costs in fill rate, drainage and access.
A part that cannot be identified cannot be measured, assembled or replaced. How identity survives cutting, welding, finishing and packing, and what to specify on the order.
Every cycle takes something off a mould. What wears first, why the drift stays invisible until it reaches the part, and what a shop checks to catch it in time.
A sample absorbs every open decision in a project before the batch can run. Where the time really goes, why a sample mould exists, and how to read the date you are given.
Titanium is not a harder material to weld, it is a less forgiving one. What transfers from stainless, what has to be unlearned, and how a shop decides who is ready.
A factory visit rewards the parts of the building nobody shows you: material flow, the weld bench, the purge setup, the measuring room, and what happens to a part that fails.
The limit is not a temperature in a table but whichever degradation mechanism arrives first. This covers oxide volatility and spalling, thermal fatigue at the weld toe, why the cold end fails for other reasons, and what titanium does and does not buy.
