ME364_PM_powders - 38 Powder Metallurgy Valery Marinov,...

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Powder Metallurgy 38 Valery Marinov, Manufacturing Technology 3.2 ENGINEERING POWDERS Applications Some typical applications of P/M are: v production of net-shape or near-net shape parts made of expensive materials. P/M process is capable of less than 3% scrap losses. v parts with porosity such as Flters can be made. v bearings especially so-called permanently lubricated bearings , in which air pores in the P/M parts are Flled with oil (process of impregnation ) v parts of certain metals and metal alloys that are difFcult to fabricate by other methods (carbide tool inserts, tungsten, ceramics, etc.) v parts of materials with special and unique properties (alloys that cannot be produced by other processes) Limitations There are limitations and disadvantages associated with P/M processing. These include: v high tooling costs v expensive raw materials (powders) v variation in material density and mechanical properties across the volume v relatively long parts are difFcult to manufacture v
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This note was uploaded on 12/26/2011 for the course ENGINEERIN 364 taught by Professor Staff during the Fall '11 term at Eastern Mennonite University.

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ME364_PM_powders - 38 Powder Metallurgy Valery Marinov,...

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