HIP Applications

Castings

• HIP salvages castings scrapped for internal porosity - in fact, it is the only effective way to repair porous castings. Casting yield is significantly improved, resulting in lower costs and more effective utilization of raw materials.
• HIP densified castings show improved strength, ductility and fatigue life with significantly less variation from casting to casting. The improved and more consistent material properties reduce part overdesign. This also decreases quality assurance costs and opens new market applications.
• By removing service-induced porosity, HIP rejuvenates castings, extending their service life for improved economy.

Powder Metallurgy

High purity powders are formed (consolidated) into semi-finished product with minimal deterioration due to impurities, oxidation or grain growth.

• Parts with complex geometry are formed to near-net shapes.
• In some cases, powder is formed, consolidated and bonded to a substrate in one operation.
• Pre-sintered parts are pressed to full density using HIP for improvement of properties and/or to salvage the parts.

Welding and Joining

• Fusion welds are densified by HIP. This not only improves properties and relieves welding stresses, but also improves inspectability because ultrasound scattering is reduced.
• HIP is used for solid state diffusion bonding of complex configurations and materials which will not permit fusion welding.

Ceramics

• Consolidation of ceramics by HIP allows minimal grain growth and reduces contamination because sintering aids can be eliminated.
• Previously formed parts are densified by HIP to improve physical and mechanical properties.