Is it possible to remove the welding on a unicycle?

As in, remove what the welding is attaching to the frame off?

If so, how expensive would it be?

Nevermind, ignore this.

Sorry for wasting space.

I’m afraid I can’t do that, but I will forgive you.

risking giving you an answer you already have

Just grind off whatever you want gone. Of course you will need to re-paint the area after.