基于数值模拟的隔热板零件冲压工艺研究  

Analysis and Optimization of Thermal Baffle Stamping Process Based on Dynaform

作　　者：闻瑶[1] 甘国强[1] 王成国[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009

出　　处：《精密成形工程》2014年第4期41-45,共5页Journal of Netshape Forming Engineering

摘　　要：目的研究隔热板零件冲压过程中的最优化成形工艺参数。方法利用Dynaform软件先对零件模型的成形进行了初步数值分析,根据成形后的成形极限图(FLD)与厚度分布图,确定了合理的拉延筋分布位置与对应的锁死率;再通过正交试验研究了冲压工艺参数。结果得出了压边力、锁模力、板料厚度和摩擦因数对隔热板成形过程中拉裂和起皱趋势的影响规律。结论得到了成形过程中合理的成形工艺参数,最大减薄率控制在22%以下,未变形区较少。Objective To study the optimization of forming process parameters of insulation board parts. Methods Through the finite element analysis software Dynaform,according to the forming limit diagram（ FLD） and the thickness distribution diagram,the proper draw bead distribution and the corresponding locked rate were determined. Results The influencing rule of stamping process parameters including blank holder force,draw bead locked force and friction coefficient on the cracking and wrinkling tendency were obtained through the orthogonal test. Conclusion The optimized stamping process parameters were summarized. The maximum reduction ratio was controlled to 22% or below,with fewer undeformed zones.

关 键 词：隔热板 DYNAFORM 数值模拟 正交试验 

分 类 号：TG386.3[金属学及工艺—金属压力加工]