摘要
通过对圆锥台制件的研究,分析数控渐进成形过程中不同成形策略对工件精度的影响,采用同时增大成形深度和成形角的加工方式,按照3种成形策略分3个道次对圆锥台制件进行加工,然后使用有限元软件ANSYS/LS-DYNA对不同加工策略的成形及卸载过程进行模拟仿真,以目标制件的厚度、最终尺寸精度为优化对象,分析预测合理的成形策略对目标制件最终质量的影响。根据分析结果不难得出,在多道次数控渐进成形加工中,第一道次加工深度和成形角不易过大,且各道次间加工深度差应依次递减,这样加工出的目标制件表面质量最好,整体减薄幅度最小。
Through the research on the truncated cone parts,the influence of different forming strategies on the workpiece precision in the NC incremental forming process is analyzed.Using the processing method of increasing the forming depth and forming angle at the same time,the truncated cone parts are processed in three passes according to three forming strategies.Then use the finite element software ANSYS/LS-DYNA to simulate the forming and unloading process of different machining strategies.Taking the thickness and final dimensional accuracy of the target part as the optimization objects,the influence of a reasonable forming strategy on the final quality of the target part is analyzed and predicted.The analysis results show that in the multi-pass incremental forming process,the machining depth and forming angle of the first pass are not easy to be too large,and the machining depth difference between each pass should decrease sequentially.The surface quality of the target workpiece processed in this way is the best,and the overall thinning rate is the smallest.
作者
赵超越
朱虎
ZHAO Chao-yue;ZHU Hu(School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,China;Tieling Information Engineering School,Tieling 112002,China)
出处
《机械工程与自动化》
2022年第6期95-97,共3页
Mechanical Engineering & Automation
关键词
多道次
数控渐进成形
策略优化
有限元分析
multi-pass
NC incremental forming
strategy optimization
finite element analysis
