Research of Cu-Fe alloys strip spread model during warm rolling process
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 ex-pansion during warm rolling,which can affect the control of product dimensional accuracy during pro-cessing.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 in-crease 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％.There-fore,the width spread model can be used to predict the width spread of Cu-Fe alloys sheets during the warm rolling process.
Cu-Fe alloyswarm rollingwidth spreadreduction ratemathematical model
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