网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
基于Deform二次开发的连杆折叠缺陷预测及优化
英文标题:Prediction and optimization on folding defect for connecting rod based on secondary development of Deform
作者:武欢 陈康 代先东 黄斯韬 孙阳 张金梁 曹建国 
单位:四川大学 
关键词:折叠缺陷 连杆 折叠概率指数 二次开发 Deform 
分类号:TG316
出版年,卷(期):页码:2022,47(2):12-18
摘要:

 为解决某厂船用连杆生产过程中产生的折叠缺陷,借助Deform软件进行优化分析,由于Deform自带的折叠角不能准确地预测连杆折叠缺陷,故将折叠概率指数通过二次开发嵌入Deform软件从而对折叠缺陷进行预测,预测结果与实际情况相符,并利用材料流动分析确定了圆角过渡区产生折叠缺陷的原因。探究了坯料圆角过渡区的圆角半径、终锻温度、模具加压速度对折叠概率指数的影响,结合正交实验找到优化工艺参数组合,并在二次开发后的Deform软件中进行模拟,模拟结果显示折叠状况大大改善。最后进行了工厂试生产,所得锻件形状精整,折叠报废率由20.97%降至0.91%,且微观组织和晶粒度均达到了生产要求,验证了工艺优化的有效性,为类似的折叠缺陷优化工作提供了参考。

 In order to solve the folding defect in the production process of marine connecting rod in a certain factory, the optimization analysis was conducted by software Deform. Since the folding defect of connecting rod was not accurately predicted by the folding angle that comes with the software Deform, the folding probability index was embedded in the software Deform by secondary development to predict the folding defect, and the prediction result was consistent with the actual situation. Then the cause of the folding defect in the fillet transition zone was found by material flow analysis. The influences of fillet radius in blank fillet transition zone, final forging temperature and die pressing speed on the folding probability index were explored, and combined with orthogonal experiments, the optimal process parameters were found and simulated in the software Deform after the secondary development. The simulation result shows that the folding condition is greatly improved. Finally, the factory trial production was carried out. And the shapes of  obtained forgings are refined, the folding rejection rate is reduced from 20.97% to 0.91%, and the microstructures and grain sizes reach the production requirements, which verifies the effectiveness of the process optimization and provides a reference for the optimization of similar folding defects.

基金项目:
四川省科技厅重点研发项目(2019YFG0454);川大-泸州校地合作重点项目(2021CDLZ-3) ;四川大学校地战略合作科技创新研发项目(2018CDPZH-26、2019CDLZ-16)
作者简介:
作者简介:武欢(1996-),女,硕士研究生,E-mail:13408472434@163.com;通信作者:曹建国(1971-),男,博士,副教授,E-mail:cjgkl@sina.com
参考文献:

[1]韩文干. 盘点发动机连杆市场[J].汽车与配件,2012(35): 44-47.


Han W G. Inventory of the engine connecting rod market[J]. Automobile & Parts,2012(35):44-47.


[2]荣忠义. 发动机连杆的检查与校正[J].农机使用与维修,2012,(1): 69.


Rong Z Y. Inspection and correction of engine connecting rod[J]. Agricultural Machinery Using & Maintenance,2012,(1):69.


[3]黄河. 发动机连杆盖锻造上模使用寿命[J].锻压技术,202146(11): 68-73.


Huang H. Service life of forging upper die for engine connecting rod cap[J]. Forging & Stamping Technology,202146(11):68-73.


[4]魏冠义, 杨峰,齐晓华.基于QForm6082铝合金吊耳锻造工艺优化[J].热加工工艺,2019, 48(17): 113-116.


Wei G Y, Yang F, Qi X H. Forging process optimization of 6082 aluminum alloy lifting lugs based on QForm[J]. Hot Working Technology, 2019, 48(17): 113-116.


[5]李志广, 范玉树,王东军.连杆复合型锻造折叠缺陷分析及质量控制研究[J].模具制造,2021,21(9):56-6170.


Li Z G, Fan Y S, Wang D J. Analysis and quality control research of compound forging folding defect of connecting rod[J]. Die & Mould Manufacture, 2021, 21(9): 56-6170.


[6]Zhang Y Q, Jiang S Y, Zhao Y N, et al. Isothermal precision forging of aluminum alloy ring seats with different preforms using FEM and experimental investigation[J]. The International Journal of Advanced Manufacturing Technology2014, 72(9-12): 1693-1703.


[7]Petrov P, Perfilov V, Stebunov S. Prevention of lap formation in near net shape isothermal forging technology of part of irregular shape made of aluminium alloy A92618[J]. Journal of Materials Processing Technology2006, 177(1-3): 218-223.


[8]Chan W L, Fu M W, Lu J, et al. Simulation-enabled study of folding defect formation and avoidance in axisymmetrical flanged components[J]. Journal of Materials Processing Technology2009, 209(11): 5077-5086.


[9]岳鹏. 基于Deform软件的减压阀壳体模锻工艺优化[J].热加工工艺,2019, 48(3): 167-169.


Yue P. Optimization of die forging process of pressure relief valve shell based on Deform software[J]. Hot Working Technology, 2019, 48(3): 167-169.


[10]王睿. 基于Deform软件的四通管道阀热锻过程模拟及模具优化设计[J].热加工工艺,2018, 47(13): 177-180.


Wang R. Hot forging process simulation and die optimization design of four way pipeline valve based on Deform software[J]. Hot Working Technology, 2018, 47(13): 177-180.


[11]方秀梅, 荆志杰,龚毅.基于DEFORM-3D2024铝合金锻造变形过程晶粒度分析[J].世界有色金属,2021(15):120-121.


Fang X M, Jing Z J, Gong Y. Grain size analysis of 2024 aluminum alloy steel after forging deformation based on DEFORM-3D[J]. World Nonferrous Metals, 2021(15): 120-121.


 


[12]Gao P F, Fei M Y, Yan X G, et al. Prediction of the folding defect in die forging: A versatile approach for three typical types of folding defects[J]. Journal of Manufacturing Processes,2019, 39: 181-191.

服务与反馈:
文章下载】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管  中国机械总院集团北京机电研究所有限公司 中国机械工程学会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备07007000号-9