QUALITY ASSURANCE PROCEDURES FOR POWDER FORGED MATERIALS

The fatigue performance of powder forged parts can be better than that of similar components which have been cast or drop-forged. To achieve such properties, close control must be exercised over the powders from which the parts are fabricated and also over the process used to consolidate them. This paper discusses some of the property requirements for powders intended for forging applications. Consideration is given to both the physical and chemical characteristics of the powders. Emphasis is placed on powder cleanliness and an automated image analysis technique for non-metallic inclusion assessment is described. Process control requirements during preform compaction and powder forging are also covered and a magnetic bridge sorting technique for assessing the microstructural integrity of the forgings is also outlined.

• Supplemental Notes:
  • Powder Metal Parts. Design and Implementation for Economics and Reliability, SP-535. International Congress and Exposition, Detroit, Michigan, February 28-March 4, 1983.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • James, W B
• Publication Date: 1983-2

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 37-44
• Serial:
  • Publication of: Society of Automotive Engineers, Incorporated
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Chemical properties; Fatigue tests; Forging; Materials tests; Parts; Physical properties; Powder metallurgy; Process control; Quality assurance; Vehicle components
• Subject Areas: Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00372143
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 830364, HS-034 344
• Files: HSL, USDOT
• Created Date: Apr 29 1983 12:00AM