板材单点渐进成形破裂模拟优化与实验验证  

Simulation optimization and experimental verification of fracture during single point incremental forming process for sheet metal

作　　者：耿佩[1] 崔玉琦[2] 党杰[1] 马晶[1] 

机构地区：[1]西安航空职业技术学院,陕西西安710089 [2]重庆大学材料科学与工程学院,重庆400044

出　　处：《锻压装备与制造技术》2017年第4期68-70,共3页China Metalforming Equipment & Manufacturing Technology

基　　金：西安航空职业技术学院2016~2017年度自选综合科研项目(16XHKY-017)

摘　　要：针对渐进成形工艺加工半锥角较小制件侧壁厚度减薄及破裂问题,基于ABAQUS建立渐进成形有限元分析模型,并进行数值模拟与结果分析。对于板材破裂及厚度分布不均现象提出优化方案,并完成数值模拟与实验验证,结果显示,实验加工与数值模拟结果基本一致。最后总结出渐进成形中板材发生破裂的原因、本质及解决方法。Aiming at the side wall thickness thinning and fracture issues of workpieces with small semi-cone angle during single point incremental forming process, the finite element analysis model of the process has been established on the basis of ABAQUS. The numerical simulation and analysis have been conducted. The optimized proposal for plate fracture and uneven thickness has been put forward. The numerical simulation and experimental verification have been completed. The results show the experimental results agree with the numerical simulation results. Finally, the reason, nature and solution of the plate during single point incre- mental forming process have been summarized.

关 键 词：渐进成形 破裂 实验验证 模拟优化 

分 类 号：TG386[金属学及工艺—金属压力加工]