Accession Number : AD0459666


Title :   APPLICABILITY OF NEW WELDING PROCESSES TO SUBMARINE-HULL FABRICATION.


Descriptive Note : Technical progress rept.,


Corporate Author : UNITED STATES STEEL CORP MONROEVILLE PA APPLIED RESEARCH LAB


Personal Author(s) : Nichols, H J ; Rathbone, A M ; Gross, J H


Report Date : 06 May 1963


Pagination or Media Count : 51


Abstract : One of the major problems in utilizing highstrength steels in submarine hull is the development of suitable joining techniques. Therefore, the status of new but largely unproved welding processes was reviewed to determine their potential applicability to submarine-hull fabrication. Metallurgically, narrow-groove welding, electron-beam welding, and laser welding appear to offer distinct advantages, whereas electroslag welding appears to have distinct disadvantages. Mechanically, narrowgroove welding and plasma-arc welding could be readily adapted to current submarine-hull fabrication procedures, whereas electroslag welding would have limited adaptability, electron-beam welding would require major changes in fabrication procedures, and friction welding and ultrasonic welding do not appear applicable. Based on the present state of development, the processes considered practical for joining HY130/150 steels include the manual shielded-metalarc, the inert-gas-shielded metal-arc (and the interrupted-arc modification), and the submergedarc processes. Among the new processes, only narrow-groove welding appears to be sufficiently advanced to be considered. (Author)


Descriptors :   *SUBMARINE HULLS , WELDING , ELECTRON BEAMS , EXPLOSIVE FORMING , PLASMA JETS , ELECTRIC ARCS , SLAGS , FRICTION , ULTRASONIC RADIATION , LASERS , ARC WELDING , BIBLIOGRAPHIES , SHIP PLATES , STEEL


Distribution Statement : APPROVED FOR PUBLIC RELEASE