Laser Induced Reaction for Prebond Surface Preparation of Aluminium Alloys

Abstract

The objective of this research is to establish the effect of excimer ArF UV laser on the Al alloy surface microstructure and activity and to find its correlation with the macro behavior of shear strength and failure locus. The system treated was adhesively bonded Al joints with structural adhesives. These adhesives are normally used in bonding and repairing processes for aerospace application. Surface treatment for bonding Al adherents with structural adhesives involve the sue of harsh chemicals such as acids, bases, and organic solvents. Laser surface irradiation can therefore be used as an alternative, ecologically favorable treatment. In order to achieve high adhesive strength optimal laser parameters for the treatment should be chosen (repetition rate, energy and irradiation tune).

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1994
Accession Number
ADA353060

Entities

People

  • A. Buchman
  • H. Dodiuk
  • J. Zahavi
  • M. Rotel

Tags

DTIC Thesaurus Topics

  • Adhesion
  • Adhesives
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Climate Change
  • Contracts
  • Failure Mode And Effect Analysis
  • Lasers
  • Materials
  • Organic Solvents
  • Repetition Rate
  • Resistance
  • Shear Strength
  • Surface Finishing
  • Tensile Strength
  • Ultraviolet Lasers

Readers

  • Optical Physics and Photonics.
  • Powder metallurgy of Titanium alloys.
  • Surface Coatings Technology.

Technology Areas

  • Directed Energy
  • Space