Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on the Concave Type Hull Plate Forming using Induction Heating System

고주파 유도가열을 이용한 오목 곡면 곡가공에 관한 연구

  • Hyun, Chung Min (Ship & Offshore Research Institute, Samsung Heavy Industries) ;
  • Kim, Dae Kyung (Ship & Offshore Research Institute, Samsung Heavy Industries) ;
  • Mun, Seung Hwan (Ship & Offshore Research Institute, Samsung Heavy Industries) ;
  • Park, Jung Seo (Ship & Offshore Research Institute, Samsung Heavy Industries) ;
  • Dohr, Kyu Won (Graduate School of Mechanical Engineering, Daegu University)
  • 현충민 (삼성중공업 조선해양연구소) ;
  • 김대경 (삼성중공업 조선해양연구소) ;
  • 문승환 (삼성중공업 조선해양연구소) ;
  • 박정서 (삼성중공업 조선해양연구소) ;
  • 도규원 (대구대학교 대학원 기계공학과)
  • Received : 2018.10.20
  • Accepted : 2018.11.19
  • Published : 2019.04.20
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Abstract

In shipbuilding, accurate fabrication of curved hull plates is one of the most important steps, since the shape of ship hull, which is very critical in the overall performance of a ship, is a collection of such plates. The curved hull plates forming process requires a significant amount of time by skilled workers in shipbuilding. In general, the workers cause thermal distortion in the plate and forming initial shape using gas heat source. So shipbuilding companies need skilled workers who have long experience. To solve the problem, a lot of researchers tried to develop automation system for curved hull plates. In this paper, we propose automatic heating system with gantry robot, high frequency induction heater to replace the gas heat source and automatic measurement system. We apply the system to forming concave type plate that is actually used in ship manufacturing. In addition, a system was developed to automatically generate heating information, such as the heating location and the heating speed, for actual heating process. Then the system was applied to the actual heating material. It is shown that the proposed triangle heating pattern makes desired concave shape successfully. The induction heating system showed that it can be used for automation system of curved hull plates forming process replacing gas heat source.

Keywords

References

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