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조압연 중 판의 폭 퍼짐 예측 모델 개발 원문보기

  • 저자

    이동훈

  • 학위수여기관

    포항공과대학교 일반대학원

  • 학위구분

    국내박사

  • 학과

    기계공학과 소성가공

  • 지도교수

    황상무

  • 발행년도

    2014

  • 총페이지

  • 키워드

  • 언어

    eng

  • 원문 URL

    http://www.riss.kr/link?id=T13533519&outLink=K  

  • 초록

    Precision control of the slab width is crucial for product quality and production economy in roughing mill. In this paper we present a new model for the prediction of the width spread of a slab during rolling in the roughing train of a hot strip mill. The approach is based on the extremum principle for rigid plastic materials, and applicable to horizontal rolling of a slab with either a dog bone shaped cross section or a rectangular cross section. Also the upper bound theorem is used for calculating the width spread of a slab. The prediction accuracy of the proposed model is examined through comparison with the predictions from the 3-D finite element (FE) process simulations.


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