摘要
采用DEFORM--3D软件对无台阶端头轧件的成形过程进行了有限元数值模拟,并结合二次回归正交旋转组合设计法,研究了各工艺参数对无台阶端头轧件料头体积损耗的影响规律,得到了轧件料头体积的回归方程.研究表明,轧件的料头体积与轧制长度成正比,与展宽角成反比,在模具设计允许的条件下,宜选用较小的展宽角.通过轧制实验,验证了回归方程的可信度和影响规律的正确性.
The forming process of no-step-end workpieces was simulated with the software DEFORM-3D. The influence of processing parameters on the end scrap of no-step-end workpieces was analyzed by means of quadratic quadrature rotate combination design method to get a regression equation. According to the obtained research results, the end scrap is in direct proportion to the length of blanks, but in inverse proportion to the spreading angle. A smaller spreading angle is beneficial under the selected range. Finally the reliability of the regression equation and the correctness of the influence rules were verified by rolling experiment.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2014年第7期959-965,共7页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(51075030)
现代交通金属材料与加工技术北京实验室资助项目
关键词
楔横轧
轧件
料头
工艺参数
回归分析
有限元分析
cross wedge rolling
workpieces
scrap
process parameters
regression analysis
finite element analysis
