不同送进量对皮尔格轧制成形的影响及验证

发布时间：2018-06-20 04:33

本文选题：皮尔格冷轧 + 送进量　；参考：《工程科学学报》2017年05期

【摘要】：皮尔格冷轧无缝钢管过程中为了获得性能较好的成品需要选择合理的送进量数值,本文以冷轧304不锈钢为研究对象,借助有限元模拟软件对不同送进量下的皮尔格冷轧过程进行了完整的仿真,对比分析了送进量对金属流动速度、轧制力、等效应力、残余应力及管材回弹的影响规律.结果表明轧制过程中孔型背脊和与轧辊接触的孔型侧壁处管材金属流动速度随送进量增加而增加,轧制力、等效应力及残余应力均随送进量的增加而增大,并且送进量的增大还会显著增加管材的回弹量.借助试验轧机对不同送进量下皮尔格冷轧管进行轧制试验,对试验得到的管材进行尺寸和残余应力测量,测量结果与有限元仿真结果基本一致,为皮尔格轧制过程不同送进量的选择提供依据.
[Abstract]:In order to obtain the finished product with better performance, the reasonable feeding value should be selected in the process of Pilger cold rolling seamless steel pipe. In this paper, 304 stainless steel cold rolling is taken as the research object. The complete simulation of Pilger cold rolling process with different feed rates was carried out by means of finite element simulation software. The effects of feed quantity on metal flow velocity, rolling force, equivalent stress, residual stress and springback of pipe were compared and analyzed. The results show that the metal flow velocity increases with the increase of feed rate, and the rolling force, equivalent stress and residual stress increase with the increase of feed rate. And the increase of the feed amount will also increase the rebound of the pipe significantly. With the help of the test mill, the Pilger cold-rolled tube was rolled with different feed rates. The size and residual stress of the pipe were measured. The results were in good agreement with the finite element simulation results. It provides the basis for the selection of different feed rate in Pilger rolling process.
【作者单位】：太原科技大学重型机械教育部工程研究中心;太原科技大学山西省冶金设备设计理论与技术重点实验室;北京科技大学机械工程学院;
【基金】：国家自然科学基金资助项目(51105264) 山西省青年科技基金资助项目(2015021111) 专利推广实施资助专项资助项目(20161006) 山西省研究生教育创新项目资助项目(2016SY055) 研究生科技创新资助项目(20145004) 太原科技大学博士科研启动项目资助项目(20122017)
【分类号】：TG337.5

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