• Title/Summary/Keyword: 무전단 후판

Search Result 2, Processing Time 0.018 seconds

An Investigation of Deformation Behavior of Plate Ends in Edge Rolling (후판 에지압연시 선후단부의 변형거동)

  • 천명식;황상무;이준정;김종근
    • Transactions of the Korean Society of Mechanical Engineers
    • /
    • v.16 no.7
    • /
    • pp.1278-1284
    • /
    • 1992
  • In plate rolling, it is desired to reduce the trimming loss by controlling the formation of defective end shapes. For this reason, edge rolling is frequently performed in the plate mill. In this paper, the effect of various process variables on the deformation of plate ends in edge rolling is examined by conducting experiments and finite element computer simulation. A focus is given to investigating the effect of edging on the width of the deformed plate trimming-free plate rolling.

An Experimental Study on Overlap Control at Plate Rolling (후판압연에서의 오버랩 제어에 대한 실험적 연구)

  • 천명식;한석영;이준정;김종근
    • Transactions of the Korean Society of Mechanical Engineers
    • /
    • v.15 no.1
    • /
    • pp.376-385
    • /
    • 1991
  • For manufacturing trimming-free plates which have rectangular shaped edges and straight edges in as-rolled state, it is necessary to investigate rolling characteristics of overlap, bulge and width deviation etc. in a standardized plate rolling process. The present wok is for preventing edge overlap as the first approach to develop trimming-free plate rolling technique. An experimental study on overlap control was done with plasticine material in order to examine influence factors and find a control method by use of a laboratory mill scaled down to one tenth of actual production mill. It was found that edge overlapping was increased with the increase of slab thickness and of broadside rolling ratio, but decreased with the increase of chamfered amount on slab edges. In the simulated rolling experiment with edge chamfered slabs of various chamfered angles, the chamfered angle of 60.deg. was the most effective one for reducing overlapping irrespective of slab thickness and of broadside rolling ratio.