METHODS OF MAKING SINTERED ARTICLES

摘要

Methods of making sintered articles from powder metal carbide compositions by additive manufacturing techniques are described herein. Sintered carbide articles fabricated by such additive manufacturing techniques, in some embodiments, exhibit densities equaling articles formed according to conventional techniques employed in powder metallurgy. For example, a method of manufacturing an article comprises providing sintered cemented carbide powder comprising a hard particle phase including tungsten carbide and a metallic binder phase and forming the sintered cemented carbide powder into a green article by one or more additive manufacturing techniques. The green article is sintered to provide a sintered article having density greater than 90% theoretical full density, wherein the green article has a density less than 50% theoretical full density prior to sintering.

主权项

1. A method of manufacturing an article comprising:
providing sintered cemented carbide powder comprising a hard particle phase including tungsten carbide and a metallic binder phase; forming the sintered cemented carbide powder into a green article by one or more additive manufacturing techniques; and sintering the green article to provide a sintered article having density greater than 90% theoretical full density, wherein the green article has a density less than 50% theoretical full density prior to sintering.