Existing welding processes which have been adapted for underwater use impose serious problems and often produce welds of questionable quality. This thesis presents an investigation of a process previously untested in the underwater environment. The overall objective of the study is the conceptual design of a device which could be used to exothermically weld a stud, bar, or padeye to underwater structures. The process is commonly called thermit welding. Several problem areas of both long and short range interest are considered. A theoretical temperature simulation model is developed and verified. The effects of wetness on weld strength and the ability of the thermit process to weld on a "dirty" surface are investigated experimentally. A conceptual design is prepared using experimental results. By far the most important conclusion arising out of the study is that the thermit process can be applied successfully underwater.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Ocean Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Anderssen, A H
  • Publication Date: 1972-6

Subject/Index Terms

Filing Info

  • Accession Number: 00044174
  • Record Type: Publication
  • Source Agency: Massachusetts Institute of Technology
  • Files: TRIS
  • Created Date: May 11 1973 12:00AM