应用综合仿真模型构建H型钢轧制力公式  

Development of rolling force formula for H-beam rolling process by an integrated model

作　　者：贺庆强[1] 张勤河[2] 张海龙[2] 

机构地区：[1]中国石油大学(华东)机电工程学院,山东东营257061 [2]山东大学机械工程学院,山东济南250061

出　　处：《重型机械》2008年第1期6-10,共5页Heavy Machinery

基　　金：山东省科技创新项目(2003182)资助

摘　　要：在多道次H型钢孔型轧制过程中,由于轧件变形情况非常复杂,采用现有理论方法不能准确计算轧制所需力能参数。但是制定合理的规程必须较准确地确定轧制力的大小。故此,本文通过编写PYTHON程序实现单元重构,通过编写VUMAT、USDFLD等用户子程序分析变形过程中微观组织的演变,从而在ABAQUS环境中构建了适合于对多道次型钢轧制过程的有限元综合仿真模型。利用该模型对Q235材料H型钢多道次粗轧过程进行了四因素三位级的虚拟正交实验,研究影响其轧制负荷的主要因素,建立了经验公式。For the multi - pass groove rolling, analytical method cannot be used to calculate the rolling force since the deformation status is too complicated. But it is important to calculate the rolling force precisely and quickly in scheduling a reasonable rolling process. So an integrated model has been developed in ABAQUS based on element re -mesh and VUMAT/USDFLD subroutines. The model is used to analyze factors affecting the rolling force of multi - pass H - beam rough rolling process, and the experiential formula was constructed based on the results.

关 键 词：孔型轧制 综合模型 H型钢 轧制负荷 

分 类 号：TG335.4[金属学及工艺—金属压力加工]