Advantages and Applications of Cold Isostatic Pressing
1. Advantages of Cold Isostatic Pressing
In comparison with conventional unidirectional die compactioncold isostatic compaction has the following advantages:
Cold isostatic pressing can give
(1) compacts with uniform densityrelatively free from cracksstrains and laminations caused by residual stresses.
(2) reproducible density in compacts enabling better control of dimensions after sintering.
(3) higher green strength,allowing better handling and machining.
(4) a uniform and controlled densification of the powder during CIP
(5)economy of operation even for complexand large parts.
(6) low tool costs (due to the use of cheaper elastomer moulds).
(7) flexibility of operations in that different shapes can be pressed simultaneously.
(8) long and slender parts can be pressed
(9)near-net shape forming technique
(10) reduction in the amount of binder necessary for compaction
(11)extremely short production times
2. Applications of Cold Isostatic Pressing
Cold isostatic pressing is used for producing semifinished (billets，preforms) as well as near net shapes. Metallic filters made from bronzebrassstainless steelInconelHastelloyMonel titanium,high speed toolstungsten carbide tool bits and parts with complicated shapes as well as threaded bushings can be successfully fabricated by Cold Isostatic Pressing followed by sintering. Cold Isostatic Pressing is widely used for pressing of ceramic parts such as sparks plugs and insulators.
