隔热板冲压成形工艺参数优化  

Optimization of the Process Parameters for Thermal Baffle Stamping Forming

作　　者：杜勇[1] 闻瑶[1] 马俊林[1] 薛克敏[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5期108-112,共5页Journal of Netshape Forming Engineering

摘　　要：目的确定隔热板合理可行的成形方案。方法简要分析了零件的成形特点,并利用有限元软件对零件的拉延成形进行了数值模拟。设计正交实验时,以压边力、1号和3号拉延筋的完全锁模力、2号和4号拉延筋的完全锁模力及摩擦因数4个参数为自变量,以最大厚度减薄率、破裂情况以及未充分变形区大小为优化目标。结果 2号和4号拉延筋是该隔热板成形的主要影响因素,锁模力都为60 N/mm时,隔热板拉延成形效果较好。结论通过分析各因素对优化目标的影响,得出了优化的工艺参数值,为零件的实际生产提供指导。Objective To determine reasonable and feasible forming solutions. Methods The forming characteristics of the thermal baffle was analyzed,and finite element software was used to conduct numerical simulation for drawing forming of the part. When designing the orthogonal experiment,BHF,full clamping force of 1 and 3 drawbeads,full clamping force of 2 and 4 drawbeads and the friction coefficient were set as the independent variables,and the maximal thickness reduction rate,rupture as well as size of insufficient deformation zone were set as the optimization targets. Results The 2nd and the4 th drawbeads were the main influencing factors of the thermal baffle forming,when both clamping forces were 60 N /mm,the thermal baffle formed better. Conclusion Optimized process parameters were obtained through analysis of the impact of various factors on the optimization targets,which provides guidance for the actual production of the part.

关 键 词：隔热板 正交优化 数值模拟 

分 类 号：TG386.3[金属学及工艺—金属压力加工]