한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)

  • 제26권1호
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  • Pages.95-103
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  • 2023
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  • 1226-833X(pISSN)
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  • 2765-5415(eISSN)
한국산업융합학회 (The Korean Society of Industry Convergence)
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노후된 알루미늄 압출기의 재제조 기술 개발 및 성능 개선

Development and Performance Improvement of old Aluminum Extruder Remanufacturing Technology

  • 윤상민 (고등기술연구원 신소재공정센터) ;
  • 정항철 (고등기술연구원 신소재공정센터) ;
  • 공만식 (고등기술연구원 신소재공정센터)
  • Sang-Min Yoon (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE)) ;
  • Hang-Chul Jung (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE)) ;
  • Man-Seek Kong (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE))
  • 투고 : 2022.12.01
  • 심사 : 2022.12.30
  • 발행 : 2023.02.28
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초록

The domestic remanufacturing industry is concentrated in auto parts, so it is necessary to expand into various industries. In the domestic aluminum industry, the extrusion process accounts for more than 40% of the total, but the old and management of the extrusion equipment is not done properly. In particular, the extruder has a structure in which equipment is not replaced until major parts are damaged or worn, so there are problems such as lower process precision, productivity and production efficiency compared to new equipment, and high maintenance costs. In this study, the old extruder was remanufactured for major high-risk parts through Failure Mode and Effect Analysis(FMEA), and the process level and performance of the extruder were evaluated before and after remanufacturing. Compared to the existing extruder, the standard deviation of the remanufacture extruder was reduced by 93.5%, 57.9%, and 70.0%, respectively, in major process control items such as container temperature, billet temperature, and ram speed, keeping performance constant. In addition, it was possible to produce products with complex shapes that could not be produced before due to problems such as dimensional deviation within tolerances. In this study, remanufacturing guidelines were presented by analyzing the effect of failure modes of the old extruder, and the performance improvement of the extruder was confirmed.

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과제정보

본 연구는 2020년도 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다.(No. 20206310100080)

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