辊弯成形力影响因素作用的机理分析  

Analysis of Action Mechanism of Influencing Factors of Roll Forming Force

作　　者：韩飞 李冲 HAN Fei;LI Chong(School of Mechanical and Material Engineering,North China University of Technology,Beijing,100144)

机构地区：[1]北方工业大学机械与材料工程学院,北京100144

出　　处：《中国机械工程》2023年第8期993-999,1006,共8页China Mechanical Engineering

基　　金：国家自然科学基金(51074204);北京市自然科学基金-市教委联合资助项目(KZ201910009011);北京市属高校高水平教师队伍建设长城学者培养计划(CIT&TCD20190306);北京市教委基本科研业务费项目(110052972027/024);北方工业大学毓杰团队支持计划(107051360021XN083/001)。

摘　　要：为研究成形力影响因素,根据定半径成形法建立了6道次辊弯成形的仿真模型。通过实验测量了不同板材每道次的成形力和同一板材变形后弯角区相同位置的硬度,分析了立边长度、加工硬化、板厚对成形力的影响。结果表明,成形力随板宽的增加有不显著的增大趋势;成形力与板厚的平方近似成正比;成形力与弯角区硬度呈现相同的变化规律。In order to study the influencing factors of forming forces,a roll forming simulation model with 6 stands was established according to the constant radius forming method.Through experiments,the forming forces of different sheets were measured in each stand,and the hardness of the same position at the corner after deformation of the same sheet was measured.The effects of flange width,work-hardening,and sheet thickness on forming force were analyzed.The results show that the forming force increases unobvious with the increase of board width;the forming force is approximately proportional to the square of sheet thickness;forming force and hardness at the corner show the same changing law.

关 键 词：辊弯成形 成形力 定半径成形法 加工硬化 

分 类 号：TH16[机械工程—机械制造及自动化]