| 凹模转动挤压成形过程的有限元分析 |
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| 引用本文： | 李峰,张鑫龙,初冠南.凹模转动挤压成形过程的有限元分析[J].材料科学与工艺,2012,20(2):117-121. |
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| 作者姓名： | 李峰 张鑫龙 初冠南 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院;哈尔滨理工大学材料科学与工程学院;哈尔滨工业大学（威海）船舶工程学院 |
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| 基金项目： | 教育部博士点新教师基金资助项目( 20112303120001)；黑
龙江省白然科学基金资助项目(1201128)；哈尔滨理T大
学青年拔尖创新人才培养计划资助项目 |
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| 摘 要： | 降低能耗及提高制品性能是当前挤压加工技术领域的一个共性问题,采用数值模拟方法对转模挤压成形过程进行研究,结果表明:随着凹模转速的增加,塑性区范围显著地扩大,转速由0增加到0.314 rad/s时,挤出速度均值增大了1.5倍,成形载荷极值降幅达40%;当挤压速度由0.157 mm/s增大至0.628 mm/s时,挤压载荷峰值增大了38.6%,挤出速度均值增大了1倍.当其他条件不变时,应综合考虑挤压速度及凹模转速之间数值的合理匹配关系.
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| 关 键 词： | 凹模转动 挤压 降低能耗 挤出速度均值 |
| 收稿时间： | 2010/11/22 0:00:00 |
Finite element analysis of rotating container in extrusion process |
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| LI Feng,ZHANG Xin-long and CHU Guan-nan.Finite element analysis of rotating container in extrusion process[J].Materials Science and Technology,2012,20(2):117-121. |
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| Authors: | LI Feng ZHANG Xin-long and CHU Guan-nan |
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| Affiliation: | College of Materials Science and Engineering,Harbin University of Science ancl Technology,Harbin 150040,China;College of Materials Science and Engineering,Harbin University of Science ancl Technology,Harbin 150040,China;School of Naval Architecture,Harhin Institute of Technology at Weihai,Weihai 264209 ,China |
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| Abstract: | To reduce energy consumption and improve product performance,numerical simulation is conducted
to analyze the extrusion process with rotating container. The results show that the plastic zone is enlarged signif-
icantly with the increase of rotation speed of the concave die. As the rotation speed increases from o to
0.314 rad/s,the mean exit velocity of the extruded material increases l. 5 times,and the peak of extrusion
load decreases by 40% . As the mean extrusion speed increases from 0. 157 mm/s t0 0. 628 mm/s,the peak of
extrusion load increases by 38. 6% ,and the mean exit speed of the extruded material increases by l time. Con-
sequently,the extrusion speed and rotation speed should be matched each other when the other parameters are
kept constant |
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| Keywords: | rotating container extrusion reducing energy consumption mean exit velocity of the extruded |
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