The jewelry factory “Adamas” invited us to see how it makes medals for Olympic Games “Sochi-2014″. This must be interesting, let’s check it out.
Everything starts from a furnace for smelting bronze and silver. By semicontinious casting they smelt a thick leaf. It will be used for making workpieces of medals – square plates which will be heated to 180C and allowed to stand for two hours to remove the internal stress inside the medals. After that they will be slowly cooling.
After the cooling the workpiece goes to a lathe where such a washer is cut out. Another lathe provides more precise turning. Upon these operations the diameter of the workpiece becomes 100 mm, thickness – 10 mm.
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