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Liquid Isostatic Pressing of Aluminum Castings


Enhancement of Aluminum Sand Casting by Liquid Hot Isostatic Pressing

Tech Area / Field

  • MAN-MAT/Engineering Materials/Manufacturing Technology
  • MAN-MCH/Machinery and Tools/Manufacturing Technology

8 Project completed

Registration date

Completion date

Senior Project Manager
Suh G W

Leading Institute
Russian Academy of Sciences / Institute of Metals Superplasticity Problems, Russia, Bashkiria, Ufa

Supporting institutes

  • Makeyev Design Bureau of State Rocket Center, Russia, Chelyabinsk reg., Miass


  • Robinson Foundry, Inc., USA, AL, Alexander City\nCentral Alabama Community College, USA, AL, Alexander City\nAlexander City Center, Alabama Technology Network, USA, AL, Alexander City

Project summary

The purpose of this project is development of the process and equipment for subjecting aluminum sand cast parts to Liquid Hot Isostatic Pressing (LHIP) to densify material. LHIP being a part of newly developed technology of sand casting consists of applying isostatic pressure on sand cast aluminum parts via special molten bath. Such the technique provides the manufacturing of low cost aluminum safety related parts with enhanced mechanical properties for the automotive industry. This process will have high economic efficiency. Elimination of internal porosity of aluminum sand casting parts providing high reliability is extremely important for the wide commercial implementation of this technology in the automotive industry. Existing LHIP process developed for densification of superalloys is essentially complicated and expensive and, therefore, could not been implemented into automotive industry. The main objective of present project is to develop a economical efficient technology of LHIP. The modified process of LHIP will be used to achieve the goal of the project.

In context of the present project the new technology and equipment for LHIP will be developed. Several prototypes of equipment for LHIP will be fabricated and evaluated. The best design of equipment for LHIP will be established. The parameters of LHIP processing will be optimized. The chemical composition of the molten bath for LHIP will be optimized. Materials for LHIP equipment will be selected. Life-time of equipment for LHIP will be evaluated. The technology of LHIP will be adjusted on commercial sand cast aluminum parts using a prototype vessel. The process and equipment of LHIP, which will be developed, will be patented in accordance with PCT procedures.


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