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- Apr 21, 2015
- Messages
- 582
Ah, I think I see now. You are making the fence out of two diameters of brass, both larger diameter than the drill rod you’ll use to hold the scriber. The threaded hole to secure the drill rod will go through the side of the smaller diameter brass.
A through hole the size of the smaller piece would work, but it’s a good chance to try boring a flat-bottomed hole on your lathe. You’d only see the solder on the inside of the joint that way.
Soft soldering is also brazing, by the way. Brazing just means melting a dissimilar metal to hold things together, as opposed to welding which actually melts the base metal parts.
Clean the parts well before soldering. The solder will tend to follow the flux, so apply it neatly and wipe away excess before heating (especially true with silver solder). Ideally, you want it to wick into the hole and nowhere else, leaving just a small amount at the interface visible.
I’d still go the peened square tenon route myself, though. Done well, it will look like a single piece of metal. Break out those files!
Soft solder (plumber’s solder, usually and preferably, imo, a lead alloy) has very weak peel strength. You will want some sort of shoulder or joint to provide mechanical strength.If I go the silver solder/brazing route, would I just sit them flush, or cut a socket for the thinner brass to seat in?
A through hole the size of the smaller piece would work, but it’s a good chance to try boring a flat-bottomed hole on your lathe. You’d only see the solder on the inside of the joint that way.
Soft soldering is also brazing, by the way. Brazing just means melting a dissimilar metal to hold things together, as opposed to welding which actually melts the base metal parts.
Clean the parts well before soldering. The solder will tend to follow the flux, so apply it neatly and wipe away excess before heating (especially true with silver solder). Ideally, you want it to wick into the hole and nowhere else, leaving just a small amount at the interface visible.
I’d still go the peened square tenon route myself, though. Done well, it will look like a single piece of metal. Break out those files!
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