Powder metallurgy, sometimes it’s referred to as metal powder sintering, is a fine technology for manufacturing metal parts by heating compacted metal powders at a temperature, near but bellow their melting points. PM is another near net shape technology except for metal Injection Molding.
Compared with metal injection molding, conventional PM uses high, uniaxially applied pressure to coarse metal powders in a tooling to form moderately complex parts.
As with metal injection molding, almost all of the material are available to PM, apart from aluminum, plastic and other material with a low melting point. PM has become a highly developed technology of producing reliable ferrous and non ferrous parts.
Better than other conventional manufacturing technology, such as forging, machining, etc, PM has a high degree of flexibility allowing clients to pursue specific property and performance requirements. These include:
1, Controlled porosity
2, Complexity in shape.
3, Controlled performance
4, High precision and good surface finish
5, Special requirements of hardness and wear resistance
6, Mass production with narrow tolerance