My shopmate had a TIG welder here the other day.
I took the opportunity to try welding the 3D printed metal parts I made last year:
These are intended to be coil holders, so I installed a 40 turn coil prior to welding.
Mike welding the halves together:
We used no filler rod on the theory that the infused bronze would melt and form a braze of sorts.
It worked very well:
The coil insulation didn’t survive: The coil is conductive to the casing.
I’m encouraged by the weldability. I am ordering more test parts to keep pushing this approach.