Low pressure metal powder pressing

A spherical metal powders [1] is poured into a mold often having a very simple design. The mold is then vibrated creating a green body with very low or no resistance. The mold is then placed in a sintering furnace to be sintered. During the sintering process, the powder is heated up close to the melting point making particles bind to each other metallurgically by diffusion. Resultant becomes a part with very porous structure with limited strength.

To further enhance and customize the component to the desired end form, common secondary operations such as restamping, Carburization, infiltration, impregnation, surface compression are done. The component may also undergo repeated sintering to increase its density. Often done along with conventional processing methods such as milling, turning and grinding.