十字轴模锻成形技术  

Die forging technology for cross shaft

作　　者：程俊伟[1] 赵创新 陈喜乐 崔广鑫 Cheng Junwei;Zhao Chuangxin;Chen Xile;Cui Guangxin(School of Materials Science and Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046,China;Xuchang ZX Forging Co.,Ld.,Xuchang 461111,China)

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

出　　处：《锻压技术》2025年第1期20-25,共6页Forging & Stamping Technology

基　　金：材料成形与模具技术国家重点实验室开放课题研究基金(P2019-016);河南省高等学校重点科研项目计划(17A460027);校企合作(2021410110000206)。

摘　　要：为了解决十字轴模锻成形时材料利用率低的问题,分析了卡压和闭式挤压两种变形方式下金属的受力和流动特征,以及这两种变形方式的难易程度,提出了半闭式预锻、开式终锻的工艺方案。在半闭式预锻过程中,轴颈处材料受到挤压、镦粗复合变形,得到4个轴颈几乎一致的坯料,且模具结构相对简单,容易实现。利用Deform软件模拟了模锻成形过程,预锻和终锻的模拟结果与理论分析一致。设计制造了锻模,并在模锻压力机上进行了工艺试验,得到了合格锻件,且飞边金属沿四周分布均匀,材料利用率提高约8%,验证了方案的可行性和合理性。In order to solve the problem of lower material utilization rate for die forging of cross shaft,the stress and flowing characteristics of metal in two deformation modes of clamping and closed extrusion,and the difficulty degree of two deformation modes were analyzed.A process scheme with semi closed pre-forging and open final forging was proposed.During the semi closed pre-forging process,the material in the shaft journal area is subjected to composite forming of extrusion and upsetting.The blank with nearly same four axle journals is obtained.The die structure is relatively simple and easy to complement.The die forging process is simulated using Deform software,and the simulated results of pre-forging and final forging are consistent with theoretical analysis.The forging die is designed and manufactured.The process experiment is conducted successfully in die forging press,and the acceptable forgings are gotten.The flash metal is well-distributed along contour,and the material utilization rate is increased by 8%nearly.The feasibility and rationality of the scheme is verified.

关 键 词：十字轴 半闭式预锻 开式终锻 锻模 材料利用率 

分 类 号：TG316.3[金属学及工艺—金属压力加工]