锻压技术

C10100铜合金管挤压成形过程的有限元模拟

英文标题：Numerical simulation of extrusion process for copper alloy tube C10100

作者：王晓军何兆坤苗承鹏

单位：兰州理工大学金川集团

分类号：TG376.1

出版年,卷(期):页码：2015,40(6):144-149

摘要：

研究挤压成形工艺中的挤压速度、挤压温度和凹模圆角半径各工艺参数对挤压件成形质量的影响规律。采用有限元模拟软件Deform-2D建立了C10100铜合金的热挤压有限元模型，坯料的成形流变性能按其数学模型从该模拟软件数据库中选取。选择挤压速度分别为40，50和60 mm·s-1，挤压温度为850，900和950 ℃，凹模圆角半径为10，15，20和25 mm，比较在不同挤压参数下的等效应变值与最大挤压力值的差异。研究结果表明，当最佳工艺参数为：挤压速度50 mm·s-1、挤压温度950 ℃、凹模圆角半径10 mm时，所得到的挤制管材的表面光洁度及内部组织满足工程应用要求。

The influences of the extrusion velocity, extrusion temperature and extrusion die radius on the forming quality of extrusion parts during extrusion process were studied. The finite element model of the hot extrusion for copper alloy C10100 was established by the FEM software Deform-2D. According to its mathematical model, the rheological property of the blank was selected from database. The differences between the equivalent strain and the maximum extrusion stress were compared under the different technological parameters such as the extrusion velocity 40, 50, 60 mm·s-1, the extrusion temperature 850, 900, 950 ℃ and the radius of extrusion die 10,15,20,25 mm respectively. The study results show that the surface finished and structure of extrusion tube can meet the demands of engineering applications when the optimal parameters are chosen as the extrusion velocity 50 mm·s-1, the extrusion temperature 950 ℃ and the extrusion die radius 10 mm.

基金项目：

王晓军（1970- ），男，博士，副教授

参考文献：

［1］包进平. 大吨位卧式双动正向钢挤压机设备及工艺优化[J]. 锻压技术，2012，37(4)：78-82.Bao J P. Equipment and process optimization of large-tonnage horizontal double acting steel forword extruder [J]. Forging & Stamping Technology,2012,37(4):78-82.
［2］朱光磊，长海博文，李新涛，等. 4032铝合金棒材高温挤压过程中变形温度的模拟[J]. 有色金属加工，2014，43(4)：14-17.Zhu G L,Zhanghai B W,Li X T,et al. Simulation of deformation temperature in high temperature extrusion of 4302 aluminum alloy bar[J]. Nonferrous Metals Processing,2014,43(4):14-17.
［3］Dyi-Cheng Chen,Ci-Syong You. Finite element simulation on high extrusion-ratio hydrostatic extrusion of porous material[J]. The Arabian Journal for Science and Engineering. 2009,34(1): 11-19.
［4］Sellars C M,Mctegart W J. On the mechanism of hot deformation[J]. Acta Metallurgica,1966,14:1136-1138.
［5］Sellars C M,Tegart WJMcG. Relation between strength and structure in hot deformation[J].Journal of Material Science and Engineering, 1966,63:731-746.
［6］王芳，王忠堂. 基于管材挤压实验的ZK60镁合金本构关系模型[J]. 锻压技术，2013，38(6)：142-145.Wang F,Wang Z T. Constitutive model of ZK60 magnesium alloy based on tube extrusion test[J]. Forging & Stamping Technology,2013,38(6):142-145.
［7］郭海龙，孙志超，杨合. 挤压态7075铝合金再结晶经验模型及应用[J]. 中国有色金属学报，2013，23(6)：1508-1515.Guo H L,Sun Z C,Yang H. Empirical recrystallization model and its application of as-extruded aluminum alloy 7075[J]. The Chinese Journal of Nonferrous Metals,2013,23(6):1508-1505.
［8］王小兰，张建. 不同工艺参数对大口径厚壁无缝钢管垂直挤压过程的影响[J]. 锻压技术，2012，37(1)：154-157.Wang X L,Zhang J. Effects of different technological parameters on vertical extrusion process of large diameter seamless steel tube with thick wall[J].Forging & Stamping Technology,2012,37(1):154-157.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】