2015年2月14日星期六

Why is Tungsten Jewelry More Expensive?

Why is tungsten jewelry more expensive than other specialty metals? In order to manufacture a perfectly crafted piece of tungsten magnum jewelry, it takes the skill and knowledge that only a handful of companies have mastered. It cannot be carved from a wax or simply machined from metal tubing. To make a ring that is virtually indestructible, tungsten is processed with carbon and ground into powder. The mixed metal powder is then compressed into high pressure molds, at extremely high temperatures, to form a ring (a new mold needs to be made for each finger size).The ring is then fired in an oxygen-free oven at an astounding 2400 degrees. The ring now has to be ground, cut and shaped using very expensive diamond tooling. This process is similar to the one used in cutting and polishing of rough diamonds. The result is a solid metal of extraordinary hardness and durability.

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