短轴滑动叉模锻工艺  

Die forging process of short shaft slid fork

作　　者：郭艳珺 程俊伟[2] 常世超 孟会涛 陈喜乐 GUO Yan-jun;CHENG Jun-wei;CHANG Shi-chao;MENG Hui-tao;CHEN Xi-le(Xuchang Zhongxing Forging Co.,Ltd.,Xuchang 461111,China;School of Materials Science and Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046,China)

机构地区：[1]许昌中兴锻造有限公司,河南许昌461111 [2]郑州航空工业管理学院材料学院,河南郑州450046

出　　处：《塑性工程学报》2022年第4期45-50,共6页Journal of Plasticity Engineering

基　　金：河南省高等学校重点科研项目计划(17A460027);河南省许昌市转型升级创新专项(20200111022)。

摘　　要：针对在叉类件的模锻工艺中易出现开式模锻材料利用率低的问题,在研究传统水平分模开式模锻的材料流动特点基础上,根据锻件的外形结构提出了轴线与锻造方向一致的开式模锻新工艺,即弯曲、挤压复合成形工艺。分析了材料的变形方式和流动规律,制定了5步开式模锻工艺,该工艺在成形时可以模锻出杆部的孔。对制定的模锻工艺进行数值模拟,证明了工艺的可行性和合理性。设计制造了锻模,并通过工艺实验得到了合格锻件。结果表明,相对于传统的模锻工艺,新工艺的材料利用率得到了一定提高。In view of the problems of low material utilization rate of open die forging in the forging process of fork parts,based on material flow characteristics of traditional open die forging with horizontal parting die,a new open die forging process that the axis is consistent with forging direction was developed according to the shape structure of forgings,that is,bending and extrusion composite forming process.The deformation mode and flow law of material were analyzed and the 5-step open die forging process was developed,with which the hole of shaft can be created during die forging.The feasibility and rationality of the developed die forging process were proved by numerical simulation.The forging die was designed and produced,and the qualified forgings were obtained through the process experiment.The results show that compared with traditional die forging process,the material utilization rate of the new process is improved to a certain.

关 键 词：滑动叉 开式模锻 数值模拟 弯曲 挤压 

分 类 号：TG31[金属学及工艺—金属压力加工]