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材料工程  2015, Vol. 43 Issue (6): 46-51    DOI: 10.11868/j.issn.1001-4381.2015.06.008
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
工艺参数对钼粉烧结体近等温包套锻造成形过程中应变的影响
王宁, 李健, 关志军, 谭凯
西北工业大学 材料学院, 西安 710072
Effect of Processing Parameters on Strain Distribution During Near-isothermal Canned Forging for Molybdenum Powder Sinter
WANG Ning, LI Jian, GUAN Zhi-jun, TAN Kai
School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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摘要 运用有限元软件对钼粉烧结体近等温包套锻造成形过程进行了分析。讨论了不同工艺参数(温度、摩擦因数、锻造速率)对应变分布的影响。结果表明:随着锻造温度的升高,坯料的平均等效应变逐渐增大,但变形不均匀;随着摩擦因数的增加,坯料平均等效应变逐渐增大,同时由于变形不均匀容易出现断裂裂纹;锻造速率对坯料应变的影响不显著。通过正交实验分析得知,温度对变形均匀性影响最显著。
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王宁
李健
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谭凯
关键词 数值模拟近等温包套锻造钼粉烧结体工艺参数应变    
Abstract:Near-isothermal canned forging for molybdenum powder sinter was investigated by using finite element software. The influence of process parameters (temperature, friction coefficient and forging rate) on strain distribution was discussed. The results show that the average equivalent strain increases with the rising of forging temperature, but the corresponding deformation is non-uniform. Average equivalent strain increases with the increase of friction coefficient, meanwhile, the fracture crack easily occurs owing to non-uniform deformation. The effect of forging rate on strain is not obvious. Through analysis on the orthogonal experiment, the effect of temperature on deformation uniformatity is the most remarkable.
Key wordsnumerical simulation    near-isothermal canned forging    molybdenum powder sinter    process parameter    strain
收稿日期: 2013-06-20     
1:  TG376.2  
通讯作者: 王宁(1988—),女,硕士研究生,主要从事材料塑性加工及仿真模拟研究,联系地址:陕西省西安市友谊西路127号西北工业大学材料学院(710072),E-mail:wnfriends321@163.com     E-mail: wnfriends321@163.com
引用本文:   
王宁, 李健, 关志军, 谭凯. 工艺参数对钼粉烧结体近等温包套锻造成形过程中应变的影响[J]. 材料工程, 2015, 43(6): 46-51.
WANG Ning, LI Jian, GUAN Zhi-jun, TAN Kai. Effect of Processing Parameters on Strain Distribution During Near-isothermal Canned Forging for Molybdenum Powder Sinter. Journal of Materials Engineering, 2015, 43(6): 46-51.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.06.008      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I6/46
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