带大圆角矩形不锈钢水槽拉深成形工艺数值模拟  

Numerical Simulation on Deep Drawing of Rectangular Stainless Steel Sink with Large Round Corner

作　　者：韩建霖 吴菲 洪熠豪 章争荣[1,2] 梁庆军 李建平 HAN Jianlin;WU Fei;HONG Yihao;ZHANG Zhengrong;LIANG Qingjun;LI Jianping(School of Material and Energy,Guangdong University of Technology,Guangzhou 510000,China;Guangdong Key Laboratory of Metal Forming and Forging Equipment Technology,Guangzhou 510000,China;Guangdong Yingao Kitchen Utensils Co.,Ltd.,Foshan 528000,China;Guangdong Metal Forming Machine Works Co.,Ltd.,Foshan 528000,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510000 [2]广东省金属成形加工与锻压装备技术重点实验室,广东广州510000 [3]广东樱奥厨具有限公司,广东佛山528000 [4]广东锻压机床厂有限公司,广东佛山528000

出　　处：《热加工工艺》2024年第24期48-52,60,共6页Hot Working Technology

基　　金：佛山市创新研究资助项目(2023XJZZ02);佛山市产学研资助项目(1920001001369)。

摘　　要：通过数值模拟的方法,研究带大圆角不锈钢水槽的拉深成形过程,并揭示不同拉深工艺参数对成形质量的影响,获得较优的工艺参数,为实际生产提供指导。利用有限元数值模拟软件Dynaform对矩形盒拉深成形过程进行数值模拟,分析压边力、模具间隙和摩擦系数对大圆角矩形水槽成形的影响,采用控制变量法并结合成形极限图、厚度变化图和材料流动图对其工艺参数进行优化。结果表明,经数值模拟和工艺优化,得出较优工艺参数:拉深序一压边力为500 kN,拉深序二压边力为1000 kN,模具间隙为1.1 t,摩擦系数为0.125。采用研究所得的工艺方案可生产出合格制品,实际成形件的减薄率和成形质量与模拟结果基本一致。通过有限元数值模拟技术,可预测不锈钢水槽在拉深成形过程中大圆角处的变薄情况,所得成形工艺参数对制件影响规律可为研究带大圆角水槽拉深成形提供参考。The deep drawing process of stainless steel sink with large round corners was researched by numerical simulation,and the influence of different drawing parameters on the forming quality was revealed,so as to obtain better process parameters and provide guidance for practical production.The finite element numerical simulation software Dynaform was used to simulate the deep drawing forming process of rectangular box,and the influence of blank holder force,die clearance and friction coefficient on the forming of rectangular flume with large rounded corners was analyzed.The control variable method was used to optimize the process parameters by combining the forming limit diagram,thickness variation diagram and material flow diagram.The results show that according to the numerical simulation and process optimization,the optimal process parameters are obtained:the first-sequence blank holder force is 500 kN,the second-sequence blank holder force is 1000 kN,the die clearance is 1.1 t,and the friction coefficient is 0.125.Qualified products can be produced by using the technology scheme,and the thinning rate and forming quality of the actual formed parts are basically consistent with the simulation results.Through finite element numerical simulation,the thinning of large round corner of stainless steel sink in deep drawing process can be predicted,and the influence of forming parameters on the workpiece can provide references for the study of deep drawing of the sink with large round corner.

关 键 词：矩形件 拉深成形 压边力 数值模拟 Dynaform软件 

分 类 号：TG306[金属学及工艺—金属压力加工]