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Forming Technology of Profiles

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Encyclopedia of Ocean Engineering

Definition

Stiffeners, such as longitudinals and frames, are important structural members to support the hull plates in ship structures. They are mainly fabricated by flat, angle, bulb flat and T-shaped bars, etc. Among them, the bending work of frames is the largest, so this section takes the bending process of frames as an example to discuss.

Introduction

Frame Bending Method and Its Classification

There are many methods to bend the frame, and the typical methods are listed as follows.

  1. (1)

    Hot Bending by Hand

    The heat bending procedure is a widely used technique to obtain curvature in steel frame and plates for shipbuilding purposes. It is a process that relied on highly skilled personnel and did not guarantee constant accuracy of shapes formed. Heat is applied in a line to the web surface of a frame by a flame torch, and then immediate cooling is obtained by air or water. Heat bending can be more time-consuming than using presses.

  2. (2)

    Cool Bending with Equipment

    Its principle is...

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References

  • Li P-y, Wang C-f, Mao Y, Hu Y, Zhou Y-q (2008) Research and development of CNC cool frame bender. J Ship Prod 24(1):7–11

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  • Li P-y, Xue J-s, Zhou Y-q, Wang C-f, Mao Y-s, Hu Y-s (2009) Research for Springback of CNC frame cool bending. J Ship Prod 25(2):73–77

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  • Shama MA, Miller NS (1967) A design study of a numerically controlled frame bending machine. Trans RINA 109:95–114

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  • Wang C-f (1984) The determination of frame bending spring back curvature with trial and error method. Shipbuilding of China 25(02):81–85

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  • Wang C-f, Xu S (1988) A computer-aided three-fulcrum frame bending machine. Shipbuilding of China 29(01):55–59

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Author information

Authors and Affiliations

  1. School of transportation, Wuhan University of Technology, Wuhan, China

    Peiyong Li

Authors
  1. Peiyong Li
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Editor information

Editors and Affiliations

  1. Hadal Science and Technology Research Center, Shanghai Ocean University, Shanghai, China

    Weicheng Cui

  2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China

    Shixiao Fu

  3. School of Marine Science and Technology, Newcastle University, Newcastle, UK

    Zhiqiang Hu

Section Editor information

  1. Dalian University of Technology, Dalian, China

    Yu-Jun Liu

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© 2021 Springer Nature Singapore Pte Ltd.

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Li, P. (2021). Forming Technology of Profiles. In: Cui, W., Fu, S., Hu, Z. (eds) Encyclopedia of Ocean Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-6963-5_179-1

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  • DOI: https://doi.org/10.1007/978-981-10-6963-5_179-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-6963-5

  • Online ISBN: 978-981-10-6963-5

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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