CAJ | 학술논문

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。
목적：학정격열판합리가행적성형방안。방법간요분석료령건적성형특점，병이용유한원연건대령건적랍연성형진행료수치모의。설계정교실험시，이압변력、1호화3호랍연근적완전쇄모력、2호화4호랍연근적완전쇄모력급마찰인수4개삼수위자변량，이최대후도감박솔、파렬정황이급미충분변형구대소위우화목표。결과2호화4호랍연근시해격열판성형적주요영향인소，쇄모력도위60 N/ mm 시，격열판랍연성형효과교호。결론통과분석각인소대우화목표적영향，득출료우화적공예삼수치，위령건적실제생산제공지도。
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 the 4th 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.