CLADDING WELD REPAIR ON OBERON CLASS SUBMARINE PRESSURE HULLS

Authors
  1. Porter, J.F.
  2. Morehouse, D.O.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
As the aging class of Canadian Oberon submarines have come into refit, the serious problem of pitting and corrosion over large areas on the inside surface of the QT28 pressure hulls has had to be addressed. As a result a study on the methods of repair and their effects on the structural integrity of the submarines has been initiated. It has been accepted practice that corroded or pitted areas on the pressure hull would be repaired by weld cladding if the wasted area extends between 10 and 60 per cent of the original wall thickness and if the total surface area to be repaired is less than 100 square inches. Otherwise, the damaged section is to be cut out and replaced with virgin HY80 plate. In areas adjacent to other structure, plate removal and replacement can be extremely time consuming and costly and therefore the preferred repair is by cladding. TRUNCATED
Report Number
DREA-TC-87-310-SES-2-PAP-6 — @Paper presented at 2nd Canadian Forces/CRAD Meeting, Halifax, 26-28 May 1987; CONTAINED IN 88-02296
Date of publication
15 May 1987
Number of Pages
23
DSTKIM No
88-02286
CANDIS No
55510
Format(s):
Microfiche filmed at DSIS;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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