Linked from
The 23 pages that link to Powder metallurgy, each with the reason it gives.
CastingCompared with: It can make metal components without pouring a molten charge into a mold.
ForgingCompared with: It begins with powder rather than the solid billet commonly shaped by forging.
Granular materialRelated: It turns controlled particle packing into dense, engineered components.
Granular flowRelated: It uses granular flow during powder filling but relies on later consolidation.
Machine pressRelated: Presses compact powder into shaped green parts before sintering bonds them.