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WELDING AT TEMPERATURES LOWER THAN NORMAL WORKSHOP TEMPERATURE, PLUS 15 DEGREES CENTIGRADE

An example of the difference between Finnish regulations, Lloyds Register of Shipping, Det Norske Veritas (Finland), The Russian Shipping Register and RIL (Assn. of Finnish Civil Engineers) is cited showing clearly diversified opinions concerning cold weather welding. Because of the variety of opinions, this report has examined the effect of cold weather welding on the quality of the welded joint and the behavior of the welded structure after welding. The following are discussed in considerable detail: 1) The effect of the low temperature on the welder's performance, and his ability to obtain the required weld quality. 2) The effect of cold weather welding on the strength of the welded joint. The influence on a. the microstructure of the heat affected zone, b. the microstructure of the weld, c. the distribution of gases in the molten pool. 3) The effect of cold weather welding on the risk of brittle fracture. 4) The effect of ice, snow, frost, and water on the workpiece, as regards the quality of the welded joint. 5) The effect on the final result of preparing the joint or backchipping for a sealing run or repair if carried out in the cold. 6) The effect of cold on the welding equipment. Since this article was originally published in Finland further practical knowledge has been gained about welding under cold conditions. Many welding engineers in Finland are of the opinion that the only limiting factor is the human factor, namely the welder, and in this the difficulties begin at around minus 15 degrees centigrade.

  • Supplemental Notes:
    • Printed in English, French, German and Swedish
  • Corporate Authors:

    Elektriska Svetsning Aktiebolaget

    P.O. Box 8850
    S-402 71 Goteborg 8,   Sweden 
  • Authors:
    • Valanti, V O
  • Publication Date: 1970

Media Info

  • Features: References; Tables;
  • Pagination: p. 6-12
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00016710
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 29 1973 12:00AM