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Once you've wound jump rings around a mandrel, what's the best way to cut them apart? Some craftspeople use hand-held side cutters, but there is one problem with this method - it cuts only one side of the wire flush. Therefore, you have to cut the ring twice, which results in a small amount of waste and slightly varying ring diameters.... (2004) Complete Story
Business people look long and hard at their choices before acquiring an expensive piece of equipment for their companies. Price, quality, ROI, level of technology, and durability figure into their decisions. The size of its footprint may be pondered, as well as the learning curve for its future operators. What follows is a general exploration of the options that may be available to small and large jewelry companies -- depending on their financial standing and track record.... (2007) Complete Story
Ask any jeweler to list the gemstones with which they prefer to work, and sapphires and rubies would undoubtedly rank near the top. With a hardness of 9 on the Mohs scale, these popular varieties of corundum have long been considered nearly impossible to damage, and they can easily withstand the melting point of even high karat gold solders. Not surprisingly, many jewelers feel a comforting sense of security when faced with a ruby- or sapphire-set piece. Which may be a problem.... (2003) Complete Story
Heat treatment changes the microstructure of a metal or alloy. It is a process that may be applied after casting, or during or after fabrication. Since mechanical properties, such as strength, ductility, hardness, and toughness, and chemical properties, such as corrosion resistance, are in part dependent on microstructure, heat treatment can have a profound effect on them. There are a variety of reasons for heat treating gold, including, but not necessarily limited to, the following: To ease polishing, reduce wear and damage on the finished surface, increase strength, and increase corrosion resistance. Heat treatment can also be used to increase ductility after work hardening or to impart a springy quality to components such as money clips, catches, and clasps..... (2005) Complete Story
We all drill, all the time. We take drills and what they do for granted, but reviewing the obvious doesnt hurt -- and there may be a nugget of new information that is brought to light....
(2006) Complete Story
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