Richard J Kinch wrote:
Gary Coffman writes:

The joint won't be very strong, about like soft solder, but if
that's all you need, it's simpler than actually making a soft
solder joint on aluminum or pot metal.

I'd like to know how you soft solder aluminum.

It's easy.
You just need to remove the oxide coat in an inert atmosphere, then
you solder in the same atmosphere.