2450冷轧铝合金板形缺陷的展平分析与工艺优化

发布时间：2018-01-23 07:03

本文关键词： 铝带展平机冷轧板形　出处：《工程科学学报》2015年S1期 　论文类型：期刊论文

【摘要】：展平机组在铝带材进入冷轧机前使其产生反复的拉伸弯曲变形,改善板形的同时,也改善了带材的残余应力分布,对带材的轧制过程有着重要的影响.本文以某厂的2450冷轧铝板带生产线的五辊展平机组为研究对象,运用Abaqus有限元软件对其展平过程进行仿真研究,并提出了相关的评价指标.文中对不同类型的板形缺陷带材进行了系统的仿真计算,探讨了不同的塑性变形程度对展平过程及效果的影响规律.结果表明,对于不同板形缺陷的带材,最优的展平参数与其板形有关.
[Abstract]:Before the aluminum strip enters the cold rolling mill, the flattening mill causes repeated tensile bending deformation, improves the shape of the strip, and also improves the distribution of the residual stress of the strip. It has an important influence on the rolling process of strip. In this paper, the five-roll flattening machine of 2450 cold rolling aluminum strip production line is taken as the research object. Abaqus finite element software is used to simulate the flattening process, and the related evaluation indexes are put forward. In this paper, different types of plate defect strips are systematically simulated and calculated. The influence of different degree of plastic deformation on flattening process and effect is discussed. The results show that the optimal flattening parameter is related to the shape of strip with different shape defects.
【作者单位】：北京科技大学机械工程学院;
【基金】：广东省肇庆国家高新区技术创新工程专项资助项目(20110104005)
【分类号】：TG339
【正文快照】： 1展平机的工作原理展平辊组是一个在张力拉伸作用下的辊式矫直机组,设置在开卷机偏导辊与轧机入口侧之间.带材通过展平辊组时产生反复的拉伸弯曲变形[1],其基本原理是弹塑性拉伸弯曲矫直理论.带材在张应力和弯曲应力的叠加作用下,其中性层发生偏移,使得带材的中心层产生塑性伸

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