Manufacturing Methods for Surface Integrity Machined Structural Components

Abstract

A surface integrity evaluation of several iron, titanium and nickel base structural alloys was completed. Materials investigated include AISI 4340, 4340 modified, Grade 300 Maraging Steel, Ti-6Al-6V-2Sn, Ti-6Al-2Sn-4Zr-2Mo, Inconel 718, AF95, Rene' 80 and AF2-1DA. For the most part, these alloys were quenched and tempered or solution treated and aged, as appropriate, to put them into a high strength structural condition. Wide variations in fatigue strength were documented for the above mentioned alloys under the following metal removal conditions: surface grinding, hand sanding, end milling-peripheral cutting, end milling-end cutting, EDM and ECM. Guidelines for processing of aerospace hardware in such a way as to assure good surface integrity have been developed and presented in this report. Control of cutting tool sharpness as well as proper selection of processing parameters are prime requirements.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1972
Accession Number
AD0893765

Entities

People

  • John B. Kohls
  • Louis J. Fritz
  • Luciano R. Gatto
  • Michael Field
  • William P. Koster

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Engineered Resilient Systems
  • Space

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Cutting Tools
  • End Mill
  • Finishes
  • Grinding Wheels
  • Iron
  • Manufacturing
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Processing
  • Mechanical Working
  • Surface Properties
  • Surface Roughness
  • Tensile Strength
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Manufacturing Engineering.
  • Materials Science and Engineering.
  • Software Engineering

Technology Areas

  • Space