Authors: Wang, Ji; Liu, Yujun; Ji, Zhuoshang; Deng, Yanping; Zhang, Jun

Source: Journal of Ship Production, Volume 22, Number 3, August 2006 , pp. 184-193(10)

Publisher: Society of Naval Architects and Marine Engineers (SNAME)

Abstract:

Line heating is an effective and economical method for forming metal plates into three-dimensional shaped plates for ships, trains, and airplanes. When a curved plate subject to deformation is formed in line-heating process, the deformed shape is repeatedly inspected and reformed to reach the designed shape. Efficient automatic inspection and reforming processes are essential to enhance productivity in the whole manufacturing process. In this paper, efficient algorithms for inspection and reforming of double-curved plates are introduced. These algorithms have been developed to automatically inspect the transverse and longitudinal shape of plate surfaces and provide technical parameters to reform the unformed plates. The longitudinal shape of the plate surface is examined based on a shell plate development with plastic deformation during the plate formation, and the transverse shape is inspected through error analyses of transverse curvature radiuses. How to use the inspection results to reform unformed plates is discussed. In the end, experiments are performed with comparison to the current industrial plate manufacture, and results show a prospective application of our algorithms to the practical manufacturing of double-curved plates. The methods presented in this study may play a role in realizing the automation of the entire curved-plate manufacturing process.

Document Type: Research article

Publication date: 2006-08-01

More about this publication?

• The Journal of Ship Production publishes original and timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. Each issue contains a well-rounded selection of technical papers relevant to ship professionals, including written discussions and author's closures.
  
  From Volume 26 onwards this journal is published as Journal of Ship Production and Design
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