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BDM Rolling of Middle Sized H-beams from a Bloom

블룸을 이용한 중형 H 형강 BDM 압연 공정 연구

  • Received : 2015.10.28
  • Accepted : 2015.11.25
  • Published : 2016.02.01

Abstract

H-beams are generally produced by hot rolling composed of a Break Down Mill (BDM) and a Finishing Mill (FM). The goal of the current study was to develop BDM rolling of H300x300 beams from blooms slit from slabs. In order to manufacture H300x300 beams, the caliber design and the pass schedule of BDM rolling were proposed for a bloom instead of a beam blank. The proposed BDM caliber design and pass schedule were tested using FE-simulation and pilot tests. For the major shape dimensions, such as flange width, web height, web thickness, as well as BDM rolling loads, a comparative analysis between the FE-simulation and the pilot rolling tests was conducted. The results of FEM analysis and pilot rolling tests showed good consistency. Moreover, BDM rolling loads were predicted to be in the range of allowable rolling loads. It was concluded that the designed BDM rolling is suitable for implementation within current manufacturing capacity.

Keywords

H-Beam;Bloom;Caliber Design;FE-simulation;BDM Rolling Process;Pilot Rolling Test

References

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Cited by

  1. Roll design method using virtual flow line for multi-stage profile rolling process vol.32, pp.10, 2018, https://doi.org/10.1007/s12206-018-0928-8
  2. Study on hot rolling process of the D51 large-diameter threaded bars vol.32, pp.4, 2018, https://doi.org/10.1007/s12206-018-0332-4

Acknowledgement

Grant : BK21플러스

Supported by : 부산대학교