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摘要：
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冷斜轧铜球的关键在于铜坯料在轧制的过程中是否有足够的塑性顺利成形,而温度是影响铜坯料塑性的重要因素之一,可是传统的方法无法测量轧件内部的温度场。本文通过大变形分析软件DEFORM-3D对轧制过程中轧件的温度场进行了模拟分析,得出轧件的连接颈温度高于其它部分,连接颈与轧辊的凸棱顶部接触处温度最高,中心点温度最低,连接颈表面的温度升降交替总体上升,连接颈中心温度开始无变化然后逐渐上升。
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The key problem for skew rolling copper ball at room temperature is the good plasticity of copper bar,and the temperature of copper is key factor to influence the plasticity of the copper.But the temperature field of the workpiece can not be gotten by common methods.The temperature field of the workpiece was simulated and analysed by DEFORM-3D.It shows that the temperature of the neck is higher than the temperature of the other parts of the workpiece.In the neck,the highest temperature is on the contact point with ridge slope,and the lowest temperature is on the center of the neck.The temperature on the surface of the neck rises and decreases alternately,and the temperature of the center of the neck is constant firstly then rises gradually.
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基金项目：
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国家自然科学基金资助项目(50675019,50575023);;
广东省教育部产学研结合项目(2007B090400125)资助项目(06-4)
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作者简介：
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参考文献：
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[1]周朝辉.DEFORM有限元分析系统软件及其应用[J].热加工工艺,2003,32(4):51-52.
[2]王宝雨,刘晋平,胡正寰.斜轧球类件轧辊辊形曲面[A].锻压论文集[C].北京:航空工业出版社,1999.
[3]周永平.斜轧磷铜球成形过程的数值模拟[D].北京:北京科技大学,2007.
[4]中国标准出版社第二编辑室.铜及铜合金标准汇编[M].北京:中国标准出版社,2004.
[5]田荣璋,王祝堂.铜合金及其加工手册[M].湖南:中南大学出版社,2002.
[6]刘建生,陈慧琴,郭晓霞.金属塑性加工有限元模拟技术与应用[M].北京:冶金工业出版社,2003.
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