• Title/Summary/Keyword: 분말금속

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Design and Implementation of OPC-Based Intelligent Precision Servo Control Power Forming Press System (OPC 기반의 지능형 정밀 서보제어 분말성형 프레스 시스템의 설계 및 구현)

  • Yoo, Nam-Hyun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.6
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    • pp.1243-1248
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    • 2018

  • Metal Powder Metallurgy is a manufacturing technology that makes unique model parts or a certain type of product by using a hardening phenomenon when a powder of metal or metal oxide is put it into a mold and compression-molded by a press and then heated and sintered at a high temperature. Powder metallurgical press equipment is mainly used to make the parts of automobile, electronic parts and so on, and most of them are manufactured using precise servo motor. The intelligent precision servo control powder molding press system which is designed and implemented in this paper has advantages of lowering the price and maintaining the precision by using the mechanical camshaft for the upper ram part and precisely controlling the lower ram part using the high precision servo system. In addition, OPC-based monitoring and process data collection systems are designed and implemented to provide scalability that can be applied to smart manufacturing management systems that utilize Big Data in the future.

  • https://doi.org/10.13067/JKIECS.2018.13.6.1243 인용 PDF KSCI HTML

Review on Characterization Method and Recent Research Trend about Metal Powder for Powder Bed Fusion (PBF) Process (금속 Powder Bed Fusion(PBF) 공정용 분말의 특성평가 방법 및 관련 연구 동향)

  • Lee, Bin;Kim, Dae-Kyeom;Kim, Young Il;Kim, Do Hoon;Son, Yong;Park, Kyoung-Tae;Kim, Taek-Soo
    • Journal of Powder Materials
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    • v.27 no.6
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    • pp.509-519
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    • 2020

  • A well-established characterization method is required in powder bed fusion (PBF) metal additive manufacturing, where metal powder is used. The characterization methods from the traditional powder metallurgy process are still being used. However, it is necessary to develop advanced methods of property evaluation with the advances in additive manufacturing technology. In this article, the characterization methods of powders for metal PBF are reviewed, and the recent research trends are introduced. Standardization status and specifications for metal powder for the PBF process which published by the ISO, ASTM, and MPIF are also covered. The establishment of powder characterization methods are expected to contribute to the metal powder industry and the advancement of additive manufacturing technology through the creation of related databases.

  • https://doi.org/10.4150/KPMI.2020.27.6.509 인용 PDF KSCI