I had the same breakage years ago and was able to make a permanent repair using golf shaft epoxy to mend the parts back together. It's the glue they use to hold the head on a golf shaft, which is described as high impact bonding. It's very good on metal to metal, or metal to wood bonding. (Think 90-100 mph impact with the ground without letting go.) Of course, heat will break the bonding; that's how you change the heads on the shafts.
Just make sure you have mating surfaces that are perfectly aligned and that they're clean; mix the two parts and apply. Let cure for 24hrs without moving and you should have them held together with some light pressure. The excess can be scraped off with your pocket knife or some other sharp pointy thing.
My repair never failed over myriad uses (10,000s) and is still going strong, as far as I know.
Golfsmith would be one source for the epoxy.
kerf