La pulvimetalurgia o metalurgia de polvos es un proceso de fabricación que, partiendo de polvos finos y tras su compactación para darles una forma determinado, se calientan en atmósfera controlada para la obtención de la pieza. Este proceso es adecuado para la fabricación de grandes series de piezas pequeñas de gran precisión, para materiales o mezclas poco comunes y para controlar el grado de porosidad o permeabilidad.Algunos productos típicos son rodamientos, árboles de levas, herramientas de corte, segmentos de pistones, guías de válvulas, filtros, etc.

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Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs. Powder metallurgy is also used to make unique materials impossible to melt or form in other ways. A very important product of this type is tungsten carbide (WC). WC is used to cut and form other metals and is made from WC particles bonded with cobalt. It is very widely used in industry for tools of many types and globally ~50,000t/yr is made by PM. Other products include sintered filters, porous oil-impregnated bearings, electrical contacts and diamond tools.

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