The message .com
from "Kev" contains these words:

It takes me back to my apprenticeship when I had to braze brass studs
into copper blocks. You had about a second after the braze melted
before the stud melted and you finished up with a great blob of molten
brass.

I'd have thought friction welding might have been more suitable.

--
Skipweasel
Pay no attention to the man behind the curtain.