Laser Welding of Navy Ship Construction Materials

Abstract

An experimental investigation was conducted of laser welding of Navy ship construction materials. Bead-on-plate penetrations were formed in 1/4-in.- thick HY-130 steel, 1/16-in.-thick HY-180 steel, 1/8- and 1/4-in.-thick Ti-6Al- 4V titanium alloy and in 1/8-in.-thick 5456 aluminum alloy. Continuous carbon- dioxide laser power levels to 8 kW were used; welding speed was varied from 20 to 180 ipm in order to establish appropriate welding parameters. The bead-on- plate penetrations were initially screened by visual, metallographic, NDT and mechanical tests and then forwarded to NSSC for more detailed evaluation. The finished samples, which were 5 x 7 in. in size, exhibited excellent top and bottom surface bead characteristics and defect-free fusion zones.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1973
Accession Number
AD0786214

Entities

People

  • Conrad M. Banas

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Construction
  • Construction Materials
  • Fabrication
  • Laser Beams
  • Laser Welding
  • Lasers
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Phase Transformations
  • Power Levels
  • Shielding
  • Tensile Strength
  • Titanium Alloys
  • X Rays
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition