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| Rolling force model of longitude profile LP plate based on E Orowan differential equation |
| SUN Jing-na，CHEN Chi，HUANG Hua-gui，ZHANG Cai-yun，WANG Shuo |
| （National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，Yanshan University， Qinhuangdao 066004， Hebei， China） |
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Abstract The analysis of rolling force of longitude profile LP plate which is a considerable product in steel rolling reduction can provide theoretical basis for optimizing the forming process and predicting product performance. Based on E Orowan mathematical model and shear friction，the stress expression in each deformation zone of the longitude profile LP plate was derived. The change rule of the rolling force in the deformation zone was observed by the variations of rolling parameters. The results are as follows：the inlet positions of cladded longitude profile rolling and the rolling force peak are related to rolling reduction while the outlet position is determined by the rolling wedge angle. The rolling force peak and the deformation zone size reduce with the increase of wedge angle and time in the upwards rolling. Conversely， the rolling force peak and the deformation zone size raise with the increase of wedge angle and time in the downwards rolling.
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Received: 21 April 2017
Published: 14 November 2017
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2017, Vol. 52 
