HIGH ENERGY RATE FORGING DEVELOPMENT

Abstract

The suitability of the high energy rate forging machine (Dynapak) to produce high quality forgings from various alloys was investigated. Ti 6Al-4V demonstrates improved ductility when forged above the beta-transus with high energy rate forging equipment. This is desirale due to the ease of forging in this high temperature area over the normal forging temperatures. Large amounts of deformation can be sustained without danger of cracking H-11, 4340 and Ti-6Al-4V. he mechanical properties of the former 2 alloys are not greatly affected by forging temperatures. Net-size forgings are easily produced when compared to other types of forging epuipment. Surfae finish of 100 rms can be held when forging non-scaling alloys or when atmospheric protection is provided while the billets are heated to forging temperatures. The fatigue life should be even better than that obtained with conventional forgings. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 10, 1961
Accession Number
AD0268554

Entities

People

  • J.m. Palsulich
  • R. Johann
  • Richard J. Hall

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ductility
  • Energy
  • Fatigue (Mechanics)
  • Fatigue Life
  • High Energy
  • High Temperature
  • Mechanical Properties
  • Physical Properties

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Thermal Physics or Thermal Science.