The forming of hull plate by line heating method has been largely dependent upon the skills of experienced workers. Because of the recent trend toward the decrease in the number of skilled workers, it has become necessary to mechanize the line heating operation and establish the forming technolgy. An experimental multi-torch line heating apparatus was developed with a follow-up system by means of an eye tracer. As a preliminary step for the practical application of this apparatus an analysis was made of the temperature distribution in plates under various heating conditions, including the heat source, and experimental constants were introduced into the temperature distribution formula. An analysis was made of the bending angle using a heating deformation model on the basis of the temperature distribution. The results were confirmed by conducting a bending test. The forming of several types of hull plates was attempted by means of the line heating apparatus and bending forms sufficiently close to the desired forms were obtained. The results are discussed together with the deformation mechanism by line heating.

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  • Corporate Authors:

    Mitsubishi Heavy Industries Limited

    5-1 Marunouchi, 2-chome, Chiyoda-Ku
    Tokyo 100,   Japan 
  • Authors:
    • Iwasaki, Y
    • Taura, Y
    • Shiota, H
    • Hirabe, H
    • Tookura, A
  • Publication Date: 1975-10

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Filing Info

  • Accession Number: 00131136
  • Record Type: Publication
  • Source Agency: Mitsubishi Heavy Industries, Limited
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM