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Machine Vision and Applications

, Volume 23, Issue 3, pp 417–425 | Cite as

3D characterization of hot metallic shells during industrial forging

  • Youssef BokhabrineEmail author
  • Ralph Seulin
  • Lew F. C. Lew Yan Voon
  • Patrick Gorria
  • Gouenou Girardin
  • Miguel Gomez
  • Daniel Jobard
Original Paper

Abstract

During industrial forging of hot metallic shells, it is necessary to regularly measure the dimensions of the parts, especially the inner and outer diameters and the thickness of the walls. A forging sequence lasts 2 h or more during which the diameter of the shell is regularly measured in order to decide when to stop the forging process. For better working conditions, for the safety of the blacksmiths, and for a faster and more accurate measurement, we have developed a novel system based on two commercially available time of flight laser scanners for the measurement of the diameters of hot cylindrical metallic shells during the forging process. The advantages of using laser scanners are that they can be placed very far from the hot shell, more than 15 m, while at the same time giving an accurate point cloud from which three-dimensional views of the shell can be reconstructed and diameter measurements done. Moreover, more accurate measurement is achieved in less time with the laser system than with the conventional method using a large ruler. The system has been successfully used to measure the diameters of hot cylindrical metallic shells.

Keywords

3D Laser-based measurement systems Shell diameter measurement Dimensional measurement of hot surfaces 

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Youssef Bokhabrine
    • 1
    • 2
    Email author
  • Ralph Seulin
    • 1
  • Lew F. C. Lew Yan Voon
    • 1
  • Patrick Gorria
    • 1
  • Gouenou Girardin
    • 2
  • Miguel Gomez
    • 2
  • Daniel Jobard
    • 2
  1. 1.Laboratoire LE2I, UMR CNRS 5158, IUT Le CreusotLe CreusotFrance
  2. 2.AREVA SFAR STEEL Creusot ForgeLe Creusot CedexFrance

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