I have a stovetop milk steamer & espresso maker whose handle fell off. The spot weld failed after a few years of use.
Using a TIG welder, I welded the handle's thread back to the lid.
Unfortunately, during the welding process I breached the double wall of the lid; a hole formed through which you could see the inside of the double wall. I filled in the hole and continued the weld as you can see from the photograph above.
My question is this: can I put this steamer back into service or is it a writeoff?
To know the answer to that question I think I need to know what the nature of that void was before I breached the wall of the container?
- Was it a vacuum?
- Was it filled with a special gas?
- Was it just plain old air?
If it was anything other than plain old air it's now filled with plain old air and a little bit of argon. All I really want to know is that it's not going to explode if I put it back into service.