Lecture 6 (powder Metallurgy)

IE 21: INDUSTRIAL MATERIALS AND PROCESSES Lecture 6: Powder Metallurgy MMT UP DIE/OR

POWDER METALLURGY 

P/M is the production of metal parts by way of compacting metal powders in appropriate dies and sintering (heating without melting) them.

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First Uses: 3000 BC – Egypt; sponge irons  1100 AD – Arabs; high quality swords from iron powder  1900s – prod’n of tungsten filaments for incandescent bulbs 

POWDER METALLURGY

START

Metal Powder Preparation

Blending

Compaction

START

Auxiliary Operations

Sintering

Sources  E.P. DeGarmo, et. al. Materials and Processes in Manufacturing. 6th Edition, Macmillan Publishing Company, 1984.  S. Kalpakjian. Manufacturing Engineering and Technology. 3rd Edition, Addison-Wesley Publishing Company, 1995.