hot isostatic pressing

the process

Hot Isostatic Pressing (HIP), or ‘Hipping’, is the simultaneous application of heat and high pressure to materials. This process is ideal to improve the characteristics of your additive manufactured product by removing the porosity up to 100%.

Today, this process is already used in the improvement of additive manufactured products. Following Hipping, the result is elimination of internal voids (i.e. porosity) and improved microstructure, leading to hugely improved mechanical properties. HIP can be applied to a large range of alloys, including titanium, steels, aluminum, copper, and magnesium.

A HIP unit consists of a high temperature furnace enclosed within a pressure vessel. Components are heated under a uniform, isostatic pressure of inert Argon gas. When components are treated with HIP, the simultaneous application of heat and pressure eliminates internal voids and microporosity through a combination of plastic deformation, creep and diffusion bonding.

The additive manufactured product will be significantly improved after this process. 

niche technology additive manufactured products benefit from hot isostatic pressing

HIP is effective with almost all materials – including metals, ceramics and plastics. HIP repaired additive products have all of their porosity removed. These HIPped materials have improved mechanical properties such as fatigue strength and increased workability.

The HIP process densifies, repairs and creates a clean uniform microstructure of the additive manufactured parts. Examination of HIPped parts by non destructive testing techniques show excellent results.

In Powder Metallurgy, the HIP process can produce materials from metallic compositions that are difficult or impossible to forge or cast.

Working with important and nationally accredited academic institutions, we are developing new technologies which deliver significant benefits for large manufacturers of components. Talk with us about our innovative approach.

get in touch interested in our technologies? please contact us...

Viviane Kettermann-Fernandes
Research & Development
Daniel Guizard
Head of Aalberts Additive Manufacturing