基于ANSYS/LS-DYNA的花键冷滚轧成形数值模拟  

Numerical Simulation of Involute Spline Shaft's Cold-rolling Forming Based on ANSYS/LS-DYNA

作　　者：全建辉[1] 崔凤奎[1] 杨建玺[1] 徐红玉[1] 薛玉君[1] 

机构地区：[1]河南科技大学,洛阳471003

出　　处：《中国机械工程》2008年第4期419-422,427,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50475039);河南省教育厅科技攻关项目(200610464002);河南省自然科学基金资助项目(994041800)

摘　　要：利用显式中心差分算法,借助有限元分析软件ANSYS/LS-DYNA,通过数值模拟,实现了花键冷滚轧成形过程的可视化。根据数值模拟的结果,讨论了齿形误差及其成因;揭示了滚轧过程中金属流动规律和应力变化情况;分析了冷滚轧前轴坯直径与成形后花键最大外径的关系,提出了轴坯直径的修改建议。研究结果为花键改进设计提供了定量依据,同时也为深入研究花键冷滚轧成形机理奠定了基础。By using explicit central difference algorithm and finite element software ANSYS/LS- DYNA, the numerical simulation of involute spline shaft＇s cold-rolling forming was realized. Ac cording to the calculated result, the metal flowing law,yon Mises stress and the formed outer diameter of involute spline were forecasted; also the errors between the simulation result and the object denti- form of involute spline were analyzed. All these will provide quantitative basis for improving design and promote the study of involute spline shaft＇s cold-rolling forming mechanism.

关 键 词：数值模拟 ANSYS/LS-DYNA 冷滚轧 金属流动规律 

分 类 号：TG335.12[金属学及工艺—金属压力加工]