Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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A Study on Large Area Roll Projection Welding for Metallic Sandwich Plate : Part 1 - Process Monitoring

금속 샌드위치 판재 대면적 롤 프로젝션 용접에 관한 연구 : Part 1 - 공정 모니터링

  • Ahn, Jun-Su (Department of Mechanical Engineering, KAIST) ;
  • Kim, Jong-Hwa (Production Technology Research Team, STX Shipbuilding) ;
  • Na, Suck-Joo (Department of Mechanical Engineering, KAIST) ;
  • Lim, Ji-Ho (Technical Research Labs., POSCO)
  • 안준수 (한국과학기술원 기계공학과) ;
  • 김종화 (STX 조선 생산기술연구팀) ;
  • 나석주 (한국과학기술원 기계공학과) ;
  • 임지호 (POSCO 기술연구소)
  • Published : 2009.06.30
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Abstract

A roll projection welding machine is introduced to fabricate metallic sandwich plate consisting of a structured inner sheet with projection-like shape and a pair of skin sheets. To fabricate the metallic sandwich plate of consistent and good quality, two process monitoring methods are introduced; dynamic resistance monitoring and skin sheet temperature monitoring. Dynamic resistance monitoring has no time delay but gives only averaged value over plate width. Skin sheet temperature monitoring has certain amount of time delay but is good for predicting weld quality of specified position. By the two complementary monitoring methods, the characteristics of the new welding process is successfully understood.

Keywords

References

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