Need a lesson on soldier and brazing
 

Hey guys, I was looking for some good information on soldiering and
brazing and haven't found what i'm looking for yet. Thought I'd just
ask here. If anyone has a good link please let me know, otherwise, I'm
curious what the difference is and what all the different types are of
each, what metals they are used for and what type of heat source is
necessary. Also when flux is necessary and what to use. I'm also
curious what would work, and be best to join two pieces of 1/4 inch
round carbide stock at a right angle. I want to make a custom 60
degree inside thread cutter that will mount in a router and cut threads
in wood. Maybe I should just grind a HSS round blank down instead.
Let me know if I'm going down the wrong path.

Thanks,
Scott