Laser Induced Reaction for Prebond Surface Preparation of Aluminum Alloys

Abstract

The potential of UV lasers for prebonding treatment if Al-2024 alloy was proved in a previous investigation with a modified epoxy adhesive. Surface treatment of Al by excimer laser results in oxidation and morphological changes of the surface promoting high shear adhesion strength at optimal laser conditions. The objective of this research is to establish the effect of excimer ArF UV laser on the Al alloy surface microstructure and chemical activity and its correlation with the macro behavior of shear and peel strength and failure locus of adhesively bonded joints using structural adhesives for structural and repair applications. The first stage of this research of structural adhesives for various service temperatures and their primer were ordered. The details of the adhesives and the primer are given in Table 1.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA351142

Entities

People

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

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Adhesion
  • Adhesives
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Bonded Joints
  • Contracts
  • Excimer Lasers
  • Films
  • Governments
  • Lasers
  • Materials
  • Peel Strength
  • Surface Finishing
  • Ultraviolet Lasers
  • United States Government

Fields of Study

  • Materials science

Readers

  • Molecular Photonics/Laser Physics
  • Powder metallurgy of Titanium alloys.
  • Surface Coatings Technology.

Technology Areas

  • Directed Energy