FUME GENERATION AND MELTING RATES OF SHIELDED METAL ARC WELDING ELECTRODES

Three hard-facing and two high-strength low-alloy steel electrodes were tested at optimum current settings. At each current setting fume generation rates increased almost linearly with voltage and with power, and decreased almost linearly with current. The fume generation rates with a.c. ranged from 50% greater <with a hard-facing high-manganese electrode> to 30% less <with a hardfacing medium-chromium electrode> than with d.c. welding at the same current. Electrode melting rates increased almost linearly with current and decreased almost linearly with voltage and power. The processes responsible for the observed variations are discussed.

• Supplemental Notes:
  • Weld. J., 63 <1984>, p. 263-s <Aug.> (4pp., 14 ref., 4 fig., 1 tab.)
• Authors:
  • Tandon, R K
  • Ellis, J
• Publication Date: 1984

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00687392
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM