ME364_PM_process - 40 Powder Metallurgy Valery Marinov,...

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Powder Metallurgy 40 Valery Marinov, Manufacturing Technology 3.3 POWDER METALLURGY PROCESS Overview After the metallic powders have been produced and classiFed, the conventional P/M process sequence consists of three major steps: (1) blending and mixing of powders, (2) compaction , and (3) sintering , and a number of optional and Fnishing secondary operations. SimpliFed ±owchart illustrating the sequence of operations in powder metallurgy process The condition of powders during the three primary P/M operations is shown in the Fgure: (a) (b) (1) (2) (3) The conventional P/M process sequence: (1) blending, (2) compacting, and (3) sintering; (a) shows the condition of powders, and (b) shows the schematics of operation
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Powder Metallurgy 41 Valery Marinov, Manufacturing Technology Blending and mixing Blending : mixing powder of the same chemical composition but different sizes Mixing : combining powders of different chemistries Blending and mixing are accomplished by mechanical means: (a) (b) (c) (d) Several blending and mixing devices: (a) rotating drum, (b) rotating double cone,
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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_process - 40 Powder Metallurgy Valery Marinov,...

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