DEVELOPMENT OF IMPROVED METHODS, PROCESSES, AND TECHNIQUES FOR PRODUCING STEEL EXTRUSIONS

Abstract

An optimized extruding and warm drawing process has been established for PH15-7MO. The salient features of the process are: (1) A container temperature at the liner surface of approximately 900 F is mandatory in order to consistently obtain crack free thin PH15-7MO steel extrusions. (2) Selective sub-cooling of the point area to a martensitic type metallurgical structure is practical and results in a very substantial improvement in point durability. (3) Multiple draw passes are possible without intermediate thermal treatment on PH15-7MO although work hardening does occur.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1963
Accession Number
AD0403357

Entities

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  • L. M. Christensen

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  • Air Platforms
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  • Air Force
  • Aircrafts
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  • Ceramic Materials
  • Chemical Analysis
  • Chemistry
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  • Engineering
  • Heat Treatment
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  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Properties

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  • Metallurgy
  • Systems Analysis and Design