重型机械Issue(6)：28-32,5.
基于晶体塑性理论的难熔金属管材轧制仿真研究
Simulation research on rolling of refractory metal tubular materials based on crystal plasticity theory
杨博文 1凡明 1成海宝 1郭琳 1纪松山 1王会斌 2李帅3
作者信息
- 1. 中国重型机械研究院股份公司,陕西 西安 710018
- 2. 浙江久立特材科技股份有限公司,浙江 湖州 313012
- 3. 南京高速齿轮制造有限公司,江苏 南京 210000
- 折叠
摘要
Abstract
Based on the crystal plasticity theory,this study systematically analyzed the plastic deformation,stress-strain distribution,and texture evolution process during the Pilger rolling forming process through numerical simulation technology,in order to obtain the deformation law of the refractory metal seamless tube rolling process and provide theoretical support for process optimization.Research shows that the stress concentration in the deformation zone of refractory metal seamless tubes during the initial stage of rolling directly reflects the drastic changes in mechanical behavior.As the number of rolling passes increases,the mechanical uniformity gradually improves,and the stress distribution stabilizes at the final sizing stage,fully demonstrating the close coupling relationship between the rolling deformation and the stress state.In terms of texture evolution,the large plastic deformation in the reducing zone causes grain rotation,resulting in a shift in the basal texture density.In the wall-thinning zone,grains further rotate and reorganize,and the crystal orientation gradually gains dominance.After the sizing and finishing in the sizing zone,the texture state stabilizes.This research not only provides quantitative references for optimizing the rolling process parameters and designing the die structure of refractory metal seamless tubes,but also offers an important basis and practical guidance for enhancing the performance of key tubes in high-end equipment manufacturing and other fields.关键词
晶体塑性有限元/皮尔格轧制/难熔金属无缝管材/应力应变/织构演变Key words
crystal plasticity finite element/pilger rolling/seamless tubes of refractory metals/stress-strain/structural evolution分类
矿业与冶金引用本文复制引用
杨博文,凡明,成海宝,郭琳,纪松山,王会斌,李帅..基于晶体塑性理论的难熔金属管材轧制仿真研究[J].重型机械,2025,(6):28-32,5.
