Ultrasonic Weld Bonding of Helicopter Primary Structures.

Abstract

This program was a study to develop and optimize an ultrasonic weld bonding procedure for the fabrication of primary structural components for helicopters. This procedure, a combination of ultrasonic welding and adhesive bonding, was studied through a series of coupon tests. Various adhesives and surface treatments were evaluated with regard to their adaptability of ultrasonic weld bonding. Adhesive bond quality and weld quality were evaluated through various T-shear, fatigue, and environmental salt-spray tests. Environmental degradation of the adhesively bonded areas occurred consistently and could not be resolved. It was determined that the surface condition required for good adhesive bonding was not compatible with that required for good ultrasonic welding and the program was terminated. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA124645

Entities

People

  • K. K. Niji

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adhesive Bonding
  • Adhesives
  • Aerospace Industry
  • Aircrafts
  • Bonding
  • Fabrication
  • Governments
  • Helicopters
  • Manufacturing
  • Materials
  • Structural Components
  • Surface Finishing
  • Surface Properties
  • Test And Evaluation
  • Ultrasonic Welding
  • Welding
  • Welds

Fields of Study

  • Materials science

Readers

  • Software Engineering
  • Structural Health Monitoring of Composite Structures.
  • Surface Coatings Technology.