摘要
汽车盘体零件通常采用机加工成形或者两步锻造成形(预锻+终锻),而机加工成形的效率和材料使用率较低、两步锻造成形的设备及模具成本较高,因此对该盘体零件的一步锻造成形的可行性进行了研究。根据汽车盘体零件的结构特征,设计了3种不同形式的飞边槽结构,并通过有限元分析软件Deform-3D分别进行了建模及数值分析,对比了不同飞边槽结构对汽车盘体零件填充质量、锻造成形力及锻模磨损的影响。最终得出了采用沟式飞边槽结构更优的结论,同时从等效应力分布规律和温度分布规律两方面分析了该结构下锻后零件的质量。结果表明:采用沟式飞边槽结构能得到填充完整、质量好、无瑕疵的汽车盘体零件,并通过生产实践进行了验证,提高生产率的同时有效降低了材料成本、模具成本、设备成本。
Automobile disc parts are usually formed by machining or two-step forging(pre-forging and final forging). Due to the low efficiency and low material utilization rate of machining, as well as the high cost of equipment and die for two-step forging, the feasibility of one-step forging of automobile disc parts was studied. According to the structural characteristics of automobile disc parts, three different forms of flash groove structures were designed, and the modeling and numerical analysis were carried out through the finite element analysis software Deform-3 D. The effects of different flash groove structures on the filling quality, forging forming force, and forging die wear of automobile disc parts were compared. Finally, it was concluded that the ditch flash groove structure outperformed other structures, and the quality of the forged part under this structure was analyzed from the aspects of equivalent stress distribution and temperature distribution. Results show that the automobile disc part with complete filling, good quality, and no defects could be obtained by using the ditch flash groove structure, which was verified in production practice. The productivity was improved and the material cost, mold cost, and equipment cost were effectively reduced.
作者
万轶
陈林
WAN Yi;CHEN Lin(School of Environmental Science,Nanjing Xiaozhuang University,Nanjing 211171,China;Jiangsu Shentong Valve Co.,Ltd.,Nantong 226232,China)
出处
《材料科学与工艺》
CAS
CSCD
北大核心
2022年第3期44-50,共7页
Materials Science and Technology
基金
中国博士后科学基金资助项目(2019M651642)
江苏省高等学校自然科学研究项目(19KJB460006)。
关键词
锻造成形
飞边槽结构
数值分析
填充质量
成形力
锻模磨损
forging forming
flash groove structure
numerical analysis
filling quality
forming force
forging die wear
