摘要
为提高A100钢J-C本构参数逆向识别的精度和效率。采用二维的铣削仿真模型结合正交表,得到在A100钢各J-C本构参数的不同水平组合下,铣削力和铣削温度的模拟值。根据霍普金森压杆实验结果确定正交表的因素水平,通过对模拟结果的极差、方差分析得到各本构参数对响应变量的影响规律,并与对应的三维仿真模型模拟结果做比较,验证了等效二维铣削仿真模型的适用性。结果表明:铣削力、铣削温度对热软化系数m的变化最敏感,对应变强化系数B和加工硬化指数n不敏感,等效二维铣削仿真模型适用性较好。
To improve the accuracy and efficiency of J-C constitutive parameters of A100 steel.A twodimensional milling simulation model combined with an orthogonal table is used to obtain the simulated value of milling force and milling temperature under different horizontal combinations of each J-C constitutive parameters of A100 steel.According to the factor level of the orthogonal table,we obtained the response of the constitutive parameters and the influence of the variables,and compared them with the simulation results of the corresponding 3D simulation model to verify the applicability of the equivalent 2D milling simulation model.The results show that the milling force and milling temperature are most sensitive to the change of thermal softening coefficient m,insensitive to the strain reinforcement coefficient B and machining hardening index n,and the equivalent two-dimensional milling simulation model is suitable.
作者
贾宗强
白海清
贾宗蒲
JIA Zongqiang;BAI Haiqing;JIA Zongpu(College of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723001,CHN;Shaanxi Key Laboratory of Industrial Automation,Hanzhong 723001,CHN;Shenzhen Jiuhe Industrial Automation Equipment Co.Ltd.,Shenzhen 518100,CHN)
出处
《制造技术与机床》
北大核心
2023年第12期48-56,共9页
Manufacturing Technology & Machine Tool
基金
陕西省重点研发计划项目(2023-YBGY-385)。
关键词
A100钢
J-C本构参数
有限元仿真
灰色关联度
A100 steel
J-C constitutive parameters
finite element simulation
grey correlation degree
