小孔深槽环件三辊横轧径向宽展行为的有限元分析(英文) 被引量：1

FE analysis for radial spread behavior in three-roll cross rolling with small-hole and deep-groove ring

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摘要为了更好地理解径向宽展行为并提出有效的控制方法,利用ABAQUS\Explicit开展深槽小孔环件三辊横轧径向宽展行为的有限元分析,研究三辊横轧过程中径向宽展演化和分布规律、以及4个关键成形参数对径向宽展行为的影响规律。结果表明:三辊横轧中环件内表面中心区域径向宽展先增加后减小,上、下区域一直增加;三辊横轧后径向宽展关于轴向中心呈对称分布,从上、下区域至中心区域逐渐减小;较大的进给速度或较小的转速会导致较大的平均宽展和内表面不平整度;较大的摩擦系数或较小的环件初始温度会导致较小的平均宽展和较大的内表面不平整度。该结果能够为深槽小孔环件三辊横轧径向宽展控制和合理的参数设计提供科学依据。为了更好地理解径向宽展行为并提出有效的控制方法,利用ABAQUS\Explicit开展深槽小孔环件三辊横轧径向宽展行为的有限元分析,研究三辊横轧过程中径向宽展演化和分布规律、以及4个关键成形参数对径向宽展行为的影响规律。结果表明:三辊横轧中环件内表面中心区域径向宽展先增加后减小,上、下区域一直增加;三辊横轧后径向宽展关于轴向中心呈对称分布,从上、下区域至中心区域逐渐减小;较大的进给速度或较小的转速会导致较大的平均宽展和内表面不平整度;较大的摩擦系数或较小的环件初始温度会导致较小的平均宽展和较大的内表面不平整度。该结果能够为深槽小孔环件三辊横轧径向宽展控制和合理的参数设计提供科学依据。

作者钱东升华林邓加东

机构地区武汉理工大学材料科学与工程学院武汉理工大学现代汽车零部件技术湖北重点实验室

出处《中国有色金属学会会刊：英文版》 CSCD 2012年第S2期247-253,共7页 Transactions of Nonferrous Metals Society of China

基金 Projects (50975215, 51005171) supported by the National Natural Science Foundation of China Project (2012-Ⅳ-003) supported by Fundamental Research Funds for the Central Universities, China

关键词三辊横轧小孔深槽环件径向宽展有限元分析回转成形塑性变形 three-roll cross rolling small-hole and deep-groove ring radial spread finite element analysis rotary forming plastic deformation

分类号 TG335.1 [金属学及工艺—金属压力加工]

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