Very simple work holding with a sacrificial nut and bolt. When silver soldering you donít want your best engineers clamps in the path of a blow torch. Also, you donít want the thermal mass of a large clamp.
I often have this problem and resort to a piece of wire that wraps around and is twisted tight. Or I try to balance a fire brick on top to hold it all together. The other option is to use a mechanical joint as well such as a rivet. However, sometimes these are not great options for other reasons.
Even after heating this to 650įC the bolts came apart very easily
I know this is a bit mundane, but sometimes we all need a prod to get us thinking outside of the box.