• Title/Summary/Keyword: 롤 금형

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A study on the change of die roll size by the shape of die chamfer in fine blanking die for automobile door latch (자동차 도어 래치 성형용 파인 블랭킹 금형의 다이 챔퍼 형상에 따른 다이 롤 크기 변화에 대한 연구)

  • Kim, Jong-Deok;Kim, Heung-Kyu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.2
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    • pp.565-570
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    • 2011

  • There is always die roll in fine blanking parts which is able to have 100% clean shear surface. In this paper the change of die roll size was studied by fine blanking tryout in order to minimize die roll size. Various die inserts with different die chamfer were machined, fine blanking die was manufactured and tested. The die roll sizes of fine blanking samples were measured and the tendency of thickness directional die roll size was comprehended. This result will be used on the design of die chamfer in order to minimize thickness directional die roll size of fine blanking parts

  • https://doi.org/10.5762/KAIS.2011.12.2.565 인용 PDF KSCI

A study on basis of metal inner structure by roll forming machine (롤 성형기를 이용한 금속 내부구조물 기초 실험)

  • 김형종;정동원;최두선;제태진;박재현
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.1452-1455
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    • 2004

  • Sandwich structures, which are composed of a thick core between two thin faces, are commonly used in many engineering applications because they combine high stiffness and strength with low weight. Depending on the application of a particular sandwich structure, various types of cores can be used. The production of sandwich sheets by a rolling process, which is a more efficient and economical approach compared to other types of processes, has become an increasingly important subject of study. In this paper, we have studied the embossing structure of sheet type and developed embossing roll mold with $\Phi$3 pattern and roll forming system.

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