摘要
基于有限元分析软件ABAQUS6.9,对双金属复合管旋压成形过程进行数值模拟研究,将旋压过程分为起旋、稳旋和旋出模具3个阶段,分析了稳旋阶段的轴向,径向和周向的应力分布,得出旋压后内管出现裂纹以及模具受磨损的原因,得到旋压成形后的等效塑性应变、残余接触压力分布情况,以及稳旋阶段的心轴扭矩,结果对以后旋压工艺的优化有重要意义。
In this paper, the numerical simulation of spinning process of 20/316L composite pipe was carried out based on the finite element software ABAQUS6.9. The spinning forming process was divided into three stages the initial stage, stable spinning stage and screw out spinning die stage, the axial, radial and hoop stress distributions in the forming zone during the stable spinning stage were analyzed. The reasons of transverse and longitudinal crack on the liner tube and die wear were found. The PEEQ, the distribution of torque of the transmission shaft and the residual contact pressure between the inner and outer pipe were discussed. The results are significant for the optimizing of the spinning process parameters. [Ch,8 fig. 1 tab. 8 ref.]
出处
《轻工机械》
CAS
2012年第6期36-39,共4页
Light Industry Machinery
关键词
双金属复合管
旋压成形
残余接触压力
数值模拟
bimetal tube
spinning forming
residual contact pressure
numerical simulation
