Powder metallurgy is a method of receiving various materials and details from metal powders by their pressing and sintering, passing a stage of metal melting and molding.
Powder metallurgy is one of the most perspective methods of manufacturing the products with special characteristics namely porosity, high hardness, refractoriness etc. Powder metallurgy has big advantages in comparison with other traditional ways of manufacturing parts: high efficiency of a material (up to 0,9-0,95), high technological effectiveness of the powder metallurgy processes, high producing efficiency, low labor input, possibility to obtain the exact sizes without additional machining, the wide range of product properties.
High technical and economic advantages of powder metallurgy over other methods of production:
- metal saving;
- possibility to replace nonferrous and scarce metals for less scarce and cheaper without compromising the properties of the products;
- increasing productivity;
- obtaining materials with special properties, etc.
All of these characteristics set the stage for widespread use of powder materials in various fields of engineering, product output growth and continuous expansion of their nomenclature.
Currently produced by powder metallurgy metal parts are widely used as antifrictional, frictional and structural components, as well as filters, magnets, electrical contacts, details of special equipment, etc.