I was considering silver soldering (not soft soldering) a brass control horn to a wire torque rod (elevator joiner). I was under the impression that soft soldering is not intended for "mechanical use" and therefore not strong enough, hence the need to use silver solder.
I did wonder about the heated areas becoming hard and brittle but have read many times about silver soldering being used to do similar things. It is something that i need to look into 'cos I would like to fabricate my own parts instead of using plastic "hobby shop" parts and I need the joints to be strong and reliable so they are "fit and forget" so to speak. Espicially if the joint is hidden inside a fusalage for example. So what do I do?? Would the heating process make the metal too brittle or has anyone used it successfully?

Any alternative ideas would be welcome.

Richard