NIU Wenyong, LIN Baosen, HAO Zhiqiang, SUN Tao, LI Jianping
Cu-Fe alloys has excellent properties, and the increase in Fe content can also reduce
costs. However,high-Fe-content Cu-Fe alloys are difficult to deform at room temperature,and the use
of warm rolling can improve their machinability. Unlike cold rolling,the alloy will have a width expansion during warm rolling,which can affect the control of product dimensional accuracy during processing. Therefore,this study aims to investigate the effects of tension,reduction rate,and temperature
on the width spread of Cu-Fe alloys sheets of a certain size under different warm rolling processes
through experimental research,and develop a width spread mathematical model suitable for the warm
rolling process of Cu-Fe alloys thin strips. The results show that tension has a small effect on width
spread during warm rolling,and the increase in reduction rate and temperature can lead to an increase in width spread,but the effect of temperature is greater than that of reduction rate. Based on the Bakhchinov width spread formula,an optimization was performed to obtain a width spread model
for the warm rolling of Cu-Fe alloys sheet samples. Through experimental verification on a hydraulic
tension warm rolling mill,the model error is very small,with an accuracy range of ±10% . Therefore,the width spread model can be used to predict the width spread of Cu-Fe alloys sheets during the
warm rolling process.
