Journal of Welding and Joining

  • 제32권2호
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  • Pages.4-8
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  • 2014
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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직선형 프로세스 파이프 내면 오버레이 GTAW 용접시스템 개발

A Development of Overlay GTAW Welding System for Pipe Inside Straight Process

  • 투고 : 2014.04.16
  • 심사 : 2014.04.22
  • 발행 : 2014.04.30
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초록

In this research, GTA overlay welding system is developed for inside of straight pipes in various diameter. It can be applied to oil, ship building and plant industry, especially pipes connected to pressure vessels, for the purpose of cost reduction by cladding inside of pipes with corrosion and heat resistant alloys such as stainless steel or Inconel. Developed system consists of GTA power source, torch, wire feeding system, automatic arc length adjusting device, CCD camera and cooling unit. Two types of pipe inside overlay welding system are developed. One is for maximum 3m pipe length with 3 inch ~ 12 inch pipe outer diameter. Another type can be applied to maximum 12m pipe length with 7 ~ 24 inch OD. Developed system successfully produced inside cladded pipe and the results are shown through cross sectional images of the pipes.

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참고문헌

  1. Yong-Rae Kim, Hyunbyung Chae, Jae-Woong Kim, "Welding Heat Source Modeling for Heat Flow Analysis of GTA Overlay Welding", KWJS, 31-4(2013), 62-66 (in Korean) https://doi.org/10.5781/KWJS.2013.31.4.62
  2. Ho-Cheon Yoo, "Recent Study in Variation of Welding Materials for Overlay Welding". KWJS 31-6 (2013), 17-26 (in Korean) https://doi.org/10.5781/KWJS.2013.31.6.17