摘要
厚度分布均匀性是管件液压成形质量的重要评价指标。文章提出了厚度分布均匀性评价指标函数,建立了空心阶梯轴零件的有限元模型,并通过实验验证了仿真结果的有效性。通过模拟研究了材料的应变强化系数K、加工硬化指数n和厚向异性指数R对液压成形管件厚度分布均匀性的影响规律。
Thickness distribution is an important appraise index for the quality of hydroformed parts. The target functions of thickness distribution uniformity were presented. In the paper, a finite-element model was developed to simulate the hollow step-shaft hydroforming process. The influence of material property parameters, including the strength coefficient, K, the strain-hardening exponent, n and the thickness anisotropy parameter, R, on the uniformity of tube thickness distribution was studied through numerical simulation. An experiment of tube hydroforming validated the simulation results.
出处
《塑性工程学报》
CAS
CSCD
北大核心
2007年第6期101-104,共4页
Journal of Plasticity Engineering
关键词
液压成形
材料性能参数
厚度分布均匀性
hydroforming
material property parameters
uniformity of thickness distribution
