Hot Isostatic Pressing (HIP)

Hot isostatic pressing (HIP) is a manufacturing process used to eliminate porosity in metals and increase the density of many materials. This improves the material’s mechanical properties (fatigue strength, ductility, impact resistance) and machinability; in other words, the HIP process significantly enhances the safety of the component.

When components are treated using the HIP process, the simultaneous application of heat and pressure eliminates internal voids and micro-porosities through a combination of plastic deformation, creep and diffusion bonding of the material. The HIP process is used to significantly improve the technical properties of, for example, castings, additively manufactured products, tools, motorsport components and aerospace components.

How it works & process steps
(HIP-Cycle)

In the HIP process, components are subjected to temperatures of up to 1350 °C and pressures of up to 2000 bar. This combination of processes closes internal pores. OWL GmbH uses state-of-the-art HIP systems with validated temperature and pressure control to ensure reproducible processes.

Advantages: Density, fatigue strength,
component reliability

  • Pore-free – Minimisation of critical volume defects
  • Higher fatigue strength – reduced variation in mechanical properties
  • Improved microstructure – uniformity achieved through isostatic conditions
  • Improved performance – particularly relevant for AM parts with support structures

Materials & Alloys
(Ti, Ni, Co, Steels)

The process is suitable for a wide range of metallic materials. We can provide specific material data sheets on request.

Standards &
Certifications

OWL GmbH is certified for the hot isostatic pressing of metal products and the sintering of metals, ceramics and powders

The requirements of AS/EN 9100:2018 are met by companies in the aerospace and defence industries.

DIN EN ISO 9001:2015

Costs & Lead Times

The costs and lead times associated with the HIP process are influenced by a number of factors. In addition to the properties of the component, the choice of material, production conditions and specific testing and documentation requirements play a decisive role. Grouping orders with the same process parameters reduces costs and shortens lead times.

  • Component size & weight
  • Material & Target Material
  • Batch mix & capacity utilisation
  • Testing effort & documentation

Use cases
(Aerospace, Motorsport, MedTech, Mecanical Engineering)

Aerospace

Motorsport

Mechanical Engineering

Medical Technology