Abstract
The advantages of electron-beam melting and casting compared to vacuum arc casting techniques will be discussed. The relations between fluidity, superheat, mold material, and mold temperature will be demonstrated using cast stars. Essential mechanical and chemical properties of cast rod samples will also be discussed. Process data of an electron-beam investment casting furnace such as beam power, casting production, and attainable superheat will be correlated. Results of a newly developed pelletizing process for titanium-scrap recycling and the purification of tungsten carbide particles illustrating the influence of pellet shape, gas content, and pellet weight will be discussed and compared to another, but different, recycling process for scrap consolidation by electron-beam melting. Use of the electron-beam continuous flow melting process for the production of long and thin titanium and steel castings will be demonstrated. The possibility of using scrap as starting material will be illustrated and compared with other types of starting stock.
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