Hot Isostatic Pressing

Alcoa Howmet performs hot isostatic pressing (HIP) services as part of our Specialty Products Group.  The HIP process involves the simultaneous application of elevated temperature and isostatic gas pressure to a material for a specified period of time.  Using this process, voids within a casting are reduced or eliminated through a combination of creep and diffusion bonding.  Primary applications are the reduction of microshrinkage, the consolidation of powder metals, ceramic composites and metal cladding.
 
In 1976, after an extensive development program initiated in the mid-1960's, Alcoa Howmet became the first company to offer HIP-production services to the aerospace industry.  Today the company operates one of the largest HIP facilities in the world.

Capabilities
  • Seven modern units ranging in size from 9 inches to 58 inches in diameter, and from 26 inches to 94 inches in height
  • Operating pressures to 45,000psi (310MPa) and temperatures to 3632°F (2000°C)
  • Product encapsulation and degassing services to HIP
  • 7-day, 24-hour operation; 2-to-3 day turntime
  • Onsite metallography lab

Components HIPed
  • Turbine and airframe components
  • Metal-matrix composites and cladding
  • Medical implants
  • Powder-metal or ceramic components and billets
  • Engine-run components (rejuvenation)
  • Any metal or ceramic-based products that require increased mechanical properties, high structural integrity, or premium finishes

Contact Information
Greg Butzer
231.894.7601
Email


NADCAP Approval



Heat treat
Material test lab

ISO9002 approval



Hot isostatic pressing
Heat treat
Powder metal components
Diffusion bonding