This is the 4th ring I’ve tried making out of a coin and the first with a half dollar. For this test I used a polished face hammer along the edge. Each photo was taken between annealing.
After the ring had a uniform interior, it was sized using a ring stretcher and the tapered material of the center of the ring was removed and cleaned.
I will do a follow-up test piece with a mallet for forming to compare the final edge quality, and I will remove less material during the finishing stages.
Second round of rings made with a mallet instead of a steel hammer.