Investigation can's deformation and densification for stainless steel powders during hot isostatic pressing
Investigation can's deformation and densification for stainless steel powders during hot isostatic pressing
复制标题
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Wei Qingsong
中科院分区：
文献类型：
--
作者：
Wei Qingsong
根据粉末的塑性变形理论，利用MSC.Marc软件对316不锈钢粉末热等静压成形过程进行了有限元模拟，计算了罐身沿着径向和轴向的变形过程，分析了粉末成形致密化的特点。径向位移的模拟结果较小，相关点的误差率分别为-5.33%、-13.64%，而轴向位移的模拟结果稍大，相关点的误差率分别为7.43%、3.14%和4.57%;模拟中密度的误差率仅为-0.43%至1.93%，对于简单的圆柱形构件，有限元模拟可以准确地描述罐体的变形和粉末的致密化过程，该方法可用于研究由变形引起的复杂结构。
According to the plastic deformation theory of powder,finite element simulation of 316 stainless steel powder with hot isostatic pressing was completed by using MSC.Marc Software.The can' s deformation process along the radial and axial directions was caculated and the characteristics of the powder' s shaping densification analyzed.For more accurate results,test points of different location in the sample were selected.From the comparison of the data,the simulation results of the radial displacement are smaller,the error ratio of the related point is-5.33%,-13.64%;while the simulation results of the axial displacement are slightly larger,the related point error ratio reaches 7.43%,3.14% and 4.57%;the error ratio of density in the simulation is only-0.43% to 1.93%.For simple cylindrical shape components,simulation of finite element can accuratioly describe the deformation of the can and the powder densification process,this method can be set for the study of complex structure caused by deformation.