锻压技术

基于虚拟正交试验的TA2弯头冷推制工艺参数优化设计

英文标题：Optimization on technological parameters of TA2 elbow cold pushing process based on virtual orthogonal experiment

作者：张旭吉卫喜朱明清贾继勇

分类号：TG386

出版年,卷(期):页码：2015,40(2):46-51

摘要：

基于Deform-3D平台，以规格型号为Ф219 mm×5 mm的TA2管坯的冷推弯曲过程为研究对象，建立了有限元仿真模型。选取管坯与芯棒的间隙、管坯与模具的间隙、摩擦系数为影响因素，以成形弯头的壁厚均值和端部截面椭圆度为评价指标，完成基于有限元仿真的虚拟正交试验研究。得出各成形参数对弯头成形的影响规律，确定弯头成形的优化工艺参数组合为内外间隙值1.0 mm、摩擦系数值0.06。验证试验结果表明，模拟及正交试验优化结果准确有效，弯头成形质量符合要求。

Based on the cold pushing process of Ф219 mm×5 mm TA2 elbow, a finite element mode was established by the Deform-3D software. The virtual orthogonal experiment was numerically simulated, in which the clearance between the tube and the mandrel, the clearance between the tube and the die and the friction coefficient were regarded as influential factors while the average of wall thickness of formed below and the ellipticity of cross-section were chosen as the evaluation index. The influential regularities of different parameters on cold pushing were obtained and optimized parameters were obtained with clearance 1.0 mm and friction coefficient 0.06. The verifying experiment shows that the results of the numerical simulation of orthogonal experiment are accurate and effective, and the elbow quality requirements are met.

基金项目：

江苏省“六大人才高峰”资助项目(2010-JXQC-089)

张旭（1987-），男，硕士研究生吉卫喜（1961-），男，博士，教授

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