MEASUREMENTS OF TEMPERATURES OUTSIDE AND IN THE WELD POOL IN SUBMERGED ARC WELDING

Abstract

Calorimetric measurements of the net heat transferred to the weldment indicate a thermal efficiency of about 90%. Measurements of fused-metalAND RECRYSTALLIZED-METAL CROSS-SECTIONS ARE SHOWN TO AGREE FAIRLY WELL WITH VALUES PREDICTED FROM THE POINT-SOURCE THEORY OF HEAT CONDUCTION. Larger deviations are encountered in the measurement of depth and width of the fused and recrystallized metal zones. The length of the pool is found of the order of 50% in excess of the theoretical value. Qualitative agreement has been obtained between measured weld pool temperatures and an average bath temperature derived from the temperature distribution outside the pool. The experimental data are not sufficiently precise for a quantitative comparison. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1962
Accession Number
AD0273091

Entities

People

  • K. Gjermundsen
  • N. Christensen

Tags

DTIC Thesaurus Topics

  • Agreements
  • Arc Welding
  • Efficiency
  • Experimental Data
  • Measurement
  • Submerged Arc Welding
  • Thermal Efficiency
  • Welding
  • Weldments
  • Welds

Readers

  • Metallurgy
  • Plasma Physics.
  • Riverine Ecology