FE analysis on Deformation and Temperature Nonuniformity in Forming of AISI-5140 Triple Valve by Multi-Way Loading

Zhichao Sun; He Yang; Xiaofeng Guo

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FE analysis on Deformation and Temperature Nonuniformity in Forming of AISI-5140 Triple Valve by Multi-Way Loading

机译：双向载荷对AISI-5140三重阀成形过程中变形和温度不均匀性的有限元分析

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In triple valve forming process by multi-way loading severely nonuniform deformation and temperature distributions are prone to occur, which may lead to poor forming quality and macro-micro defects. A 3D coupled thermo-mechanical rigid-viscoplastic finite element (FE) model for multi-way loading forming of AISI-5140 steel equal diameter triple valve was developed based on DEFORM-3D. Through comprehensive simulation and analysis, the influences of main process parameters on the forming process and nonuniformity of deformation and temperature were studied. The results showed that: (1) the degree of deformation nonuniformity decreased with the increase of the punch loading speed, initial temperature of billet, or the decrease of the friction factor; (2) the average temperature of forming body increased as the punch loading speed, initial temperature of billet and the friction increased, while the degree of temperature nonuniformity decreased with the increase of punch loading speed or decrease of initial billet temperature.

机译：在多路载荷下的三阀成形过程中，严重地会出现不均匀变形和温度分布，这可能导致成形质量差和宏观微观缺陷。基于DEFORM-3D，建立了AISI-5140钢等径三重阀门多路载荷成形的3D耦合热机械刚粘塑性有限元模型。通过综合仿真和分析，研究了主要工艺参数对成形过程以及变形和温度不均匀性的影响。结果表明：（1）变形不均匀度随冲头加载速度，坯料初始温度或摩擦系数的减小而减小; （2）成形体的平均温度随冲头加载速度，坯料初始温度和摩擦力的增加而增加，而温度不均匀度随冲头加载速度的增加或坯料初始温度的降低而降低。

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《Journal of Materials Engineering and Performance》 |2013年第2期|共8页
作者
Zhichao Sun; He Yang; Xiaofeng Guo;
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正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
AISI-5140 steel; Deformation and temperature nonuniformity; FE simulation; Multi-way loading; Triple valve;

机译：AISI-5140钢;变形和温度不均匀;有限元模拟;多路载荷;三通阀;

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2. 基于有限元法的铝合金四通阀多向加载成形过程中的变形特征分析 [J] . 张大伟, 赵升吨, 杨合中国有色金属学报：英文版 . 2014,第001期
3. FE analysis on Deformation and Temperature Nonuniformity in Forming of AISI-5140 Triple Valve by Multi-Way Loading [J] . Zhichao Sun, He Yang, Xiaofeng Guo Journal of Materials Engineering and Performance . 2013,第2期

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FE analysis on Deformation and Temperature Nonuniformity in Forming of AISI-5140 Triple Valve by Multi-Way Loading

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