Quote Originally Posted by TheDingo8MyBaby View Post
With respect to the OP - this has gone a bit off topic, perhaps we should start a separate thread or PM (depending on how far we want to go into this)

The filler I am referring to is the rod itself. I'm curious what nickel-bronze material you have used. How familiar are you with the eutectic point and liquation? Just because you can TIG weld with it doesn't mean it's a strong joint that's resistant to shock/fatigue/etc. As an anecdotal point, it doesn't make sense to me that Arch motors repair Lotus Sevens/Caterhams using gas welding if TIG was a viable option.
With TIG, the weld/braze is right at the heat point, with gas, you can heat the entire joint and flow the braze like solder on a pipe joint.