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Powder Metallurgy Process

The Powder Metallurgy ProcessThe general sequence of operations involved in the powder metallurgy process is shown schematically in the following organigram:

The component powders are mixed, together with lubricant, until a homogeneous mix is obtained. The mix is then loaded into a die and compacted under pressure, after which the compact is sintered.

An exception is the process for making filter elements from spherical bronze powder where no pressure is used; the powder being simply placed in a suitably shaped mould in which it is sintered. This process is known as loose powder sintering.

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