Ring burring is made in threephases on two devices:
Phase1 – Cutting out a perfectly centric pad form metal sheet.
Phase 2 – Burring a cone of the pad
Phase 3 – Raversing the cone into a wedding ring and calibrating ring`s hole.
The ring can be then enlarged up to demanded size and formed to get precise width. It is also possible to drift a decorating pattern (diamond turning, engraving).
Devices are made to order according to producer`s needs.
Ring cambering tool is for cambered rings, a die is used to reducethe height of the ring and creates a curve on the outer surface.