EVALUATION OF ELECTRODEPOSITED COPPER, LEAD, AND LEAD-TIN ALLOY (93-7%) BEARING SURFACES FOR SWAGING CANNON BORES.

Abstract

Electrodeposits of copper, lead, and lead-tin were evaluated as bearing surfaces for swaging steel cylinder bores. Drive pressure-time curves for the traveling mandrel are reviewed and discussed. The relationship between bearing surface characteristics of swaged cylinders and the behavior of the traveling mandrel were established. Metallographic and x-ray (back reflection Laue Method) examinations are discussed and photographs are shown to exemplify bearing surface characteristics after swaging. Contrasting results are shown for the behavior of copper (exemplifying stick-slip motion) as compared to lead and lead-tin surfaces. Some results are also reported for tin and zinc electrodeposits. Average pressure-time curves from production runs are presented and compared with experimental lead and lead-tin tests. The evaluation has shown that lead is generally the best bearing material for the swaged tubes examined. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1966
Accession Number
AD0637183

Entities

People

  • Peter V. Greco

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Alloys
  • Coatings
  • Deposition (Materials Processing)
  • Electrodeposition
  • Electrolytic Processes
  • Engineered Materials
  • Material Coating Processes
  • Materials
  • Materials Processing
  • Photographs
  • Photography
  • Test And Evaluation
  • Tin
  • Tin Alloys
  • X Rays

Readers

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  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).