Isostatic Pressing Powder Metallurgy

Isostatic Pressing Powder Metallurgy

Isostatic pressing is a type of powder metallurgy (PM) forming process that puts equal pressure in all the possible directions on a powder. The pressure makes the powder highly compact and achieves maximum amount of density and uniformity without compromising the microstructure. The pressing is performed without the geometrical restrictions of the uniaxial pressing.

There are two types of isostatic pressing. First one is the cold isostatic pressing and the second one is the hot isostatic pressing. The cold isostatic pressing is used for compressing the green parts at a surrounding temperature whereas the hot isostatic pressing is used to completely consolidate parts at raised or higher temperatures through solid-state diffusion.