DEFORM-3D在整体辗钢车轮预锻模具型腔分析中的应用  

Application of DEFORM-3D in cavity analysis of pre-forging mold for integral steel wheel

作　　者：孙晓明 魏华成 杜晓钟[1] 侯沛云 张佳敏 李树林 汪文博 Sun Xiaoming;Wei Huacheng;Du Xiaozhong;Hou Peiyun;Zhang Jiamin;Li Shulin;Wang Wenbo(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Tai Yuan Heavy Industry Transit Equipment Co.,Ltd.,Taiyuan 030024,China;Institute of Engineering Technology,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]太原重工轨道交通设备有限公司,山西太原030024 [3]北京科技大学工程技术研究院,北京100083

出　　处：《锻压技术》2020年第8期23-31,共9页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51875501);山西省重点研发计划(重点)高新领域项目(201703D111005);山西省研究生联合培养基地人才培养项目(2018JD32)。

摘　　要：依据某840D型车轮产品结构图设计了3种不同方案的预锻模具,并使用塑性精锻有限元软件DEFORM-3D,对该车轮的预锻和精锻工序进行数值模拟,通过对比分析模拟结束后车轮的等效应变、等效应力、温度以及模具的填充性,来讨论3种不同方案模具型腔设计的合理性。结果表明:第3种设计方案中车轮的等效应变满足大于0.69~1.10的要求;最大等效应力为409 MPa,并且除了轮毂部位之外其余部位的等效应力均比较小,优于其他方案;锻件的主要温度分布区间为1100~1240℃且温度分布比较均匀;金属流动均匀性优于其余两种方案。结合现场试验数据修正后,所做的工作对现场具有一定的参考作用。Three different pre-forging molds were designed according to product structure drawing of a 840 D type wheel,and the pre-forging and precision forging processes of wheel were simulated by finite element software DEFORM-3 D for plastic precision forging.Then,by comparing and analyzing equivalent strain,equivalent stress,temperature and mold filling of wheel after simulation,the rationality of mold cavity design for the three different schemes was discussed respectively.The results show that the equivalent strain of wheel in the third scheme meets the requirements of the equivalent strain greater than 0.69-1.10,the maximum equivalent stress is 409 MPa,and the equivalent stresses of other parts except the hub part are smaller,which is better than other schemes.Furthermore,the main temperature distribution range of forgings is 1100 ~ 1240 ℃,the distribution of temperature is relatively uniform,and the uniformity of metal flow is better than that of the other two schemes.After combining with the correction of field test data,the work done has a certain reference effect on the field.

关 键 词：整体辗钢车轮 模具型腔 预锻 精锻 金属流线 

分 类 号：TH12[机械工程—机械设计及理论]