Quality Assurance Benchmarks highlight workmanship of semi-finished and finished jewelry. Learn how to evaluate the quality of a platinum cobalt ring with channel-set diamonds in the shank that was sized down using a laser welder.
Potential Problems and Engineering Features
Chamfer the ends of the shank and adjust them so they are in full contact prior to welding.
Before welding, the ring might not be round. Final rounding is done after welding.
Sizing Down a Platinum Cobalt Ring with Diamonds using a Laser Welder
After lasering, the joint should look like this. The joint was chamfered and its inner portion was bonded using the laser, and then the joint was filled and joined using platinum wire and the laser.
After welding and filing the sizing joint, push the ring down firmly on a ring mandrel to round it. Tap lightly on the sides of the ring where no gemstones are set. Turn it on the mandrel and repeat. If it’s still not completely round, consider using a ring stretcher.