2002 - Casting Tree Design and Investing Technique for Induction Platinum Casting

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2002 - Casting Tree Design and Investing Technique for Induction Platinum Casting

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This paper explores the result of breaking out of the old paradigm of conventional wisdom in platinum casting -breaking all the rules around flask size, type and configuration, investment mixtures and de-watering, sprue size and configuration, as well as how tall the tree can be and how many pieces can be cast on a tree. Using actual examples and photographs, you will learn techniques that have proven to work better than the old ways. These techniques include "crooked tree" spruing, a technique where the rotation of the casting machine is taken into consideration to get maximum fill. The results are fewer investment cracks and their resultingfin defects, easier de-vesting and higher yield at lower cost. This paper will help you to improve your platinum casting ability and your productivity.

Author: Jurgen J. Maerz

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