Isostatic pressing is a popular type of powder metallurgy forming process. It applies equal pressure in all directions on a powder compact. Because of this, achievement of maximum uniformity of density and microstructure without the geometrical limitations of uniaxial pressing.
Isostatic Pressing
Isostatic pressing is a popular type of powder metallurgy forming process. It applies equal pressure in all directions on a powder compact. Because of this, achievement of maximum uniformity of density and microstructure without the geometrical limitations of uniaxial pressing.
Isostatic pressing can either be performed cold or hot. The cold isostatic pressing (CIP) is used to compact green parts at ambient temperatures. However, the hot isostatic pressing (HIP) fully consolidates parts at elevated temperatures through solid-state diffusion. This hot-pressing process can also be used to remove residual porosity from a sintered PM part.
Advantages:
Below are the benefits of the powder metallurgy process:
Cost-effectiveness for mass production since there is no further machining cost, labor cost, etc.
A high skilled operator is not required.
Some alloys can only be produced by PM technology.
Bimetallic and laminated products are easily produced with this method.
High production rate. Up to 500 to 1000 pieces of parts can be produced in an hour.
The complex shape can be easily produced.
