摘要
径向锻造工艺广泛应用于复杂轴管类零件的制造中。基于径向锻造工艺的特点,提出了液压缸缸筒的节材强化高效型径向锻造成形工艺。首先介绍了缸筒径向锻造工艺的原理,然后基于Forge软件建立了有限元三维模型。通过对仿真结果的分析,得到了液压缸缸筒径向锻造工艺成形过程中的变形特点、成形载荷和能量消耗情况。通过三道次径向冷锻渐进成形,原始筒坯逐渐变长变薄。成形过程中在外径过渡区出现了拱起现象,可通过改善摩擦条件和机械手的拉拔力来改善或消除。随着道次数的增加,材料的加工硬化越来越明显,使得材料的变形抗力越来越大,导致锤头载荷和能量消耗越来越大。采用该工艺成形液压缸缸筒的材料利用率高达90%以上。
The radial forging process is widely used in the manufacturing of complex shaft and tube parts.Based on the characteristics of radial forging technology,a material saving and efficient radial forging forming process for hydraulic cylinder tube is proposed.Firstly,a brief introduction was given to the principle of radial forging technology for cylinder tube,and then a finite element three-dimensional model was established based on Forge software.By analyzing the simulation results,the deformation characteristics,forming load,and energy consumption during the radial forging process of hydraulic cylinder tube were obtained.Through three passes of radial cold forging,the original cylinder billet gradually becomes longer and thinner.During the forming process,there is a phenomenon of arching in the transition zone of the outer diameter,which can be improved or eliminated by improving the friction conditions and the pulling force of the robotic arm.As the number of passes increases,the work hardening of the material becomes more and more obvious,which makes the deformation resistance of the material become larger and larger,leading to greater load and energy consumption.The material utilization rate of forming hydraulic cylinder tube using this process is over 90%.
作者
李坤
张超
胡慧婧
张宗元
王军
赵升吨
王永飞
张大伟
陈超
LI Kun;ZHANG Chao;HU Hui-jing;ZHANG Zong-yuan;WANG Jun;ZHAO Sheng-dun;WANG Yong-fei;ZHANG Da-wei;CHEN Chao(School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;SAIC GM Wuling Automobile Co.,Ltd.,Liuzhou 545007,China;China National Heavy Machinery Research Institute Co.,Ltd.,Xi’an 710018,China;Light Alloy Research Institute,Central South University,Changsha 410083,China)
出处
《重型机械》
2023年第4期68-72,共5页
Heavy Machinery
基金
航天科技创新应用研究(1A0A9FC6)。
关键词
液压缸缸筒
径向锻造
有限元分析
变形特点
hydraulic cylinder tube
radial forging
finite element analysis
deformation characteristics
