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

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