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摘要：
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应用ANSYSDYNA有限元软件,对楔横轧轴类件进行轧制过程的模拟,以轧件1/2半径点的应力循环变化行为为基础,得到轧件中心截面的交变次数。选取了典型轧制实验模型与有限元分析结果做比较,得到交变次数对轧件心部疏松的影响规律,为深入研究楔横轧的疏松机理提供了依据。
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Through the study of the process of cross wedge rolling step-axis with the help of FEM software ANSYS-DYNA, and on the basis of analysis of circulation deformation character of mid-radius points of the billet, the alternating times of the center cross section of workpiece has been obtained. Through the comparison between typical rolling experiment models and results of analysis of FEM software, the effect of alternating times on the internal rarefaction is known, which provides the basis for researching rarefaction mechanism of cross wedge rolling.
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基金项目：
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国家自然科学基金课题(50035010)
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作者简介：
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参考文献：
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[1] (苏)采利克夫,斯米尔诺夫,天津大学机械制造系压力教研室译.机器制造中的横轧[M].北京:中国工业出版社,1964.
[2] 楠兼敬,大西利美,铃木隆充,杉山荣彦.关于热轧的轴中心缺陷[C].楔横轧译文集.长春:吉林工业大学辊锻工艺研究所,1982.
[3] 胡正寰,许协和,沙德元.斜轧与楔横轧原理、工艺及设备[M].北京:冶金工业出版社,1985.
[4] FuXP,DeanTA.Pastdevelopments,currentapplications andtrendsinthecrosswedgerollingprocess[J].Interna tionalJournalofMachineToolsManufacturing1993;33(3):367400.
[5] 胡正寰,张康生,王宝雨,束学道,杨翠苹.楔横轧零件成形技术与模拟仿真[M].北京:冶金工业出版社,2004.
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