Hot isostatic pressing (HIP) is a manufacturing process used to eliminate internal microporosity in metal castings and other materials. HIP also enables the densification of metal, polymer, ceramic and composite powders in the solid state. Both of these methods result in superior material properties.
Application & materials:
Examples of parts HIPed in large volumes include, but are not limited to: Hot section and structural gas turbine components (both dynamic and static); aerospace structural and engine parts; implantable medical devices; automotive engine components; valve bodies and other petrochemical processing equipment; critical munitions pieces; tooling, die and general engineering parts; sputter targets; and PM alloy billets and near net shapes (NNS).
HIP can produce multiple diffusion bonds in a single process cycle. HIP cladding is commonly used to coat premium materials with superior properties, such as corrosion and wear resistance, onto more economical substrates, so the part can be designed cost effectively.
Most metal alloys along with many composites, polymers and ceramics can be HIPed, including nickel, cobalt, tungsten, titanium, molybdenum, aluminium, copper and iron based alloys; oxide and nitride ceramics; glasses; intermetallics; and premium plastics.