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In this paper I will attempt to give some insight into the investments used to cast Platinum and also talk about how we go about developing them. While this particular class of materials has been around for a long time, there have been recent improvements brought on at least partially by the increased interest in Platinum jewelry. I will briefly consider some of the properties which we seek in an investment and comment on the differences between gypsum and phosphate bonded investments on the one hand and the Platinum investments on the other.... (1999) Complete Story
Platinum casting with gemstones in place has been the latest development before the end of the second millennium. It has been a world first to give fully successful results. The development of this new process required several years of uninterrupted experimentation, and in the spring of 1999 I obtained the first good results that encouraged me to continue the study.... (2004) Complete Story
It is widely known that platinum, the most noble of metals, is also the most challenging of metals. Platinum's high level of sensitivity to even the tiniest variation in processing was something we had experienced first hand and as most things of high value, had to be learned the hard way. We now maintain a controlled process with yields upwards of 95%. The beauty of a controlled process is that given the right tools and a high level of determination, anyone can do it.... (2003) Complete Story
This paper is aimed mainly at the small- to medium-sized jewelry manufacturing operations interested in working with platinum group metals. Preparing the melt, the melting process, forging, rolling and finally some manufacturing techniques for alloyed platinum will be discussed..... (1999) Complete Story
Opinions differ considerably when discussing the ease or difficulty of polishing platinum, but most agree that when a piece is well polished it tends to stay that way. Herein I will be covering the main points regarding platinum finishing, and I may possibly be able to offer some obscure shortcuts..... (2003) Complete Story
