Synthesis of New Superhard Materials and their Application to Cutting Tools

Abstract

Two major areas of effort are encompassed: I. Synthesis of Superhard Materials: The process of Activated Reactive Evaporation is used to synthesize superhard materials like carbides, oxides, nitrides, ultrafine grain cermets. The deposits are characterized by hardness microstructure and lattice parameter measurements. The synthesis and characterization of various carbides in the Ta- C and W-C systems, and of TiC-Ni cermets is given. II. Study and the Effect of Superhard Coatings on the Performance of High Speed Steel Tools: Tools of different coating characteristics are tested for machining performance at different speeds and feeds. The machining evaluation and the selection of coatings is based on the rate of deterioration of the coating, tool temperature, and cutting forces. Tool life tests show coated high speed steel tools show a 300% improvement in tool life.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA015873

Entities

People

  • A. H. Shabaik
  • R. E. Bunshah

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Ceramic Materials
  • Chemical Vapor Deposition
  • Chemistry
  • Cutting Tools
  • Hardness
  • Heat Treatment
  • Materials
  • Measurement
  • Mechanical Properties
  • Particle Size
  • Phase Diagrams
  • Refractory Metals
  • Resistance
  • Test And Evaluation
  • Transitions
  • Wear Resistance

Readers

  • Powder metallurgy of Titanium alloys.
  • Systems Analysis and Design
  • Thin Film Deposition Science.