Tungsten Carbide Rod Powder Metallurgy History

Tungsten Carbide Rod Powder Metallurgy History

The history of tungsten carbide rod powder metallurgy and the art of metal and ceramic sintering are intimately related to each other. Sintering involves the production of a hard solid metal or ceramic piece from a starting powder. "While a crude form of iron powder metallurgy existed in Egypt as early as 3000 B.C, the smiths of India produced the famous "Iron pillar of Delhi", weighing about 6.5 tons, and other objects even larger as early as 300 A.D, and the ancient Incas made jewelry and other artifacts from precious metal powders, mass manufacturing of P/M products did not begin until the mid- or late- 19th century.

The invention of tungsten filament lamp impels the development of powder metallurgy. In 1932, tungsten carbide rod powder metallurgy marks a great improvement in powder metallurgy. Tungsten carbide rod powder metallurgy overcomes the casting problems of the refractor metal.


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