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铝合金直齿锥齿轮等温锻造数值模拟及参数优化
英文标题:Numerical simulation and parameter optimization on aluminum alloy spur bevel gear in isothermal forging
作者:赵新海1 2 徐洪强1 刘丹丹1 吴向红1 刘广荣3 
单位:1.山东大学  2.华中科技大学 3.山东大学 
关键词:以直齿锥齿轮作为研究对象 以锻造铝合金作为齿轮的材料 对其等温锻造成形工艺及参数优化进行研究。利用Deform-3D软件 建立有限元分析模型 对齿轮的开式锻造过程进行模拟研究 获得锻造过程中的金属流动及成形载荷情况。并利用正交试验法对成形过程的关键参数(温度、连皮高度、连皮厚度、圆角半径、飞边厚度)进行优化 得到了不同参数对成形载荷的影响程度 其大小依次为温度、飞边厚度、圆角半径、连皮高度、连皮厚度。在此基础上对上模速度和摩擦系数进行单变量的优化 以成形结果齿形充满无折叠等缺陷的前提下成形载荷最小为优化目标 获得了最佳的工艺参数。 
分类号:
出版年,卷(期):页码:2016,41(7):142-146
摘要:

 以直齿锥齿轮作为研究对象,以锻造铝合金作为齿轮的材料,对其等温锻造成形工艺及参数优化进行研究。利用Deform-3D软件,建立有限元分析模型,对齿轮的开式锻造过程进行模拟研究,获得锻造过程中的金属流动及成形载荷情况。并利用正交试验法对成形过程的关键参数(温度、连皮高度、连皮厚度、圆角半径、飞边厚度)进行优化,得到了不同参数对成形载荷的影响程度,其大小依次为温度、飞边厚度、圆角半径、连皮高度、连皮厚度。在此基础上对上模速度和摩擦系数进行单变量的优化,以成形结果齿形充满无折叠等缺陷的前提下成形载荷最小为优化目标,获得了最佳的工艺参数。 

 For the spur bevel gear made by forging aluminum material, its isothermal forging process and parameters optimization were studied. Finite element analysis model was established by Deform-3D, and the open-die forging process was simulated to obtain the metal flow and forming load. The key parameters (temperature, height of peel, peel thickness, radius and flash thickness) of forming process were optimized by the orthogonal test, and the influence of different parameters on the forming load was analyzed with the effective sequence of temperature, flash thickness, radius, height of peel and peel thickness. Furthermore, the single variable optimizations of punch velocity and friction coefficient were carried out respectively. Taken the smallest forming loading as the optimize object, the optimized technological coefficient for the gear without defects was obtained.  

基金项目:
华中科技大学材料成形与模具技术国家重点实验室开放课题研究基金项目(P2014-011);山东大学基本科研业务费资助项目(2014JC024)
作者简介:
赵新海(1973-),男,博士,副教授
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