Fundamentals of Plasma Arc Welding.

Abstract

This new project seeks to aid development of the plasma-arc welding (PAW) process by studying it as a problem in applied physics. The importance and difficulty of welding-plasma temperature measurements are indicated. New experimental and analytical methods for measurement of asymmetric plasmas are described. Continuum radiation is reported to be much stronger relative to spectral line radiation for small-standoff PAW than for either long-standoff PAW or for gas tungsten arc-welding. This can impair temperature measurement by the two-wavelength method of emission spectroscopy, but plans are given for circumventing the difficulty and correlating systematic plasma temperature-distribution measurements with welding parameters and weld quality. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1976
Accession Number
ADA032442

Entities

People

  • B. I. Davis
  • C. B. Shaw Jr.
  • D. W. Trover

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Advanced Materials
  • Arc Welding
  • Cameras
  • Equations
  • Films
  • Images
  • Isotherms
  • Joints
  • Measurement
  • Photographic Film
  • Photographic Images
  • Photographs
  • Plasma Arc Welding
  • Spectral Lines
  • Spectroscopy
  • Welding
  • Welds

Fields of Study

  • Physics

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Metallurgy
  • Systems Analysis and Design