铝合金7050大型环形件闭式模锻工艺  

Closed Die Forging Process of Aluminum Alloy 7050 Large Ring

作　　者：李泽源 郭瀚泽 丘铭军[2] 王艺丹 王永飞[1] 范淑琴[1] 赵升吨[1,4] 陈超 LI Zeyuan;GUO Hanze;QIU Mingjun;WANG Yidan;WANG Yongfei;FAN Shuqin;ZHAO Shengdun;CHEN Chao(School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;China National Heavy Machinery Research Institute Company Limited,Xi’an 710018,China;School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Light Alloy Research Institute,Central South University,Changsha 410083,China)

机构地区：[1]西安交通大学机械工程学院,陕西西安710049 [2]中国重型机械研究院股份公司,陕西西安710018 [3]天津理工大学材料科学与工程学院,天津300384 [4]中南大学轻合金研究院,湖南长沙410083

出　　处：《汽车实用技术》2022年第10期95-99,共5页Automobile Applied Technology

摘　　要：铝合金7050大型环形件被广泛应用于航空、航天领域。针对大型铝合金环形件中直径大,高度低,环壁薄的结构特点,文章对大型铝合金7050热模锻成形的合理工艺方案进行了分析和探讨。依据该大型铝合金环形件的三维模型,确定了该大型铝合金环形件的热模锻工艺流程。利用商用模拟软件DEFORM对大型铝合金环形件热模锻成形过程进行了数值模拟,分析了开式模锻和闭式模锻不同模锻方案对大型铝合金环形件成形结果的影响,研究不同尺寸的初始坯料对大型铝合金环形件成形效果的影响,通过对比分析改进了模具的结构,最后获得了大型铝合金环形件较为合理的闭式模锻成形方案。通过该工艺方案可以看出,该大型铝合金环形件成形效果良好,型腔充填完整,飞边槽设置合理,最大成形力为9.6×10^(8) N。The large aluminum alloy 7050 ring is an important rotary body component in the aviation and aerospace fields.Aiming at the structural characteristics of large diameter,low height and thin ring wall in large aluminum alloy ring parts,this paper analyzes the rational hot die forming scheme for aluminum alloy 7050 large ring parts.According to the forging drawing of the large aluminum alloy ring part,the hot die forging process flow of the large aluminum alloy ring part is determined.The commercial simulation software DEFORM is used to simulate the forming process of hot die forging for large aluminum alloy ring parts.The influence of different die forging schemes of open die forging and closed die forging on forming results of large aluminum alloy ring parts was analyzed.The influence of initial billets in different sizes on forming effect of large aluminum alloy rings is researched,and the structure of the die is improved through comparative analysis,finally a more reasonable hot die forging forming scheme for large aluminum alloy ring parts is determined.It can be seen from this hot die forming scheme that the large aluminum alloy ring has a good forming effect,complete cavity filling,reasonable setting of the flash groove,and a maximum forming force of 9.6×10^(8) N.

关 键 词：铝合金7050 环形件 热模锻工艺 塑性流动 数值模拟 

分 类 号：TG31[金属学及工艺—金属压力加工]