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

Abstract

Substantial improvement in dimensional integrity and surface quality has been demonstrated in limited warm drawing of thin H-11 and PH15-7MO alloy steel structural aerospace shapes. Mechanical property tests taken from extrusions pushed without Ni plating on the billet show excellent results on both alloys. Induction heating with the available temperature detection and control devices for warm drawing is not controllable within acceptable limits for the lubricants such as glass. Constant power input of a magnitude determined empirically promises the most accurate temperature control for warm drawing. Substantial benefits in improvement of dimensional control and surface quality can be obtained by warm drawing. For best results all lubricants must utilize an oxalate conversion undercoating. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1962
Accession Number
AD0275068

Entities

People

  • L.m. Christensen

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Conversion
  • Detection
  • Extrusion
  • Heating
  • Induction Heating
  • Lubricants
  • Mechanical Properties
  • Temperature Control

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Surface Engineering/Surface Coating Technology.
  • Systems Analysis and Design

Technology Areas

  • Space