CAJ | 학술논문

在数值模拟研究压边力、毛料直径、凸凹模圆角半径、变形温度等对5A90铝锂合金板材拉深成形影响的基础上,采用正交试验设计方法对拉深成形工艺参数进行了优化设计,并进行了相应的拉深成形试验研究,研究表明,变形温度对拉深成形影响最显著,其次是毛料大小,而变形速度和压边力大小的影响较小,同时,通过对试验结果的计算、分析和总结,获得了5A90铝锂合金板材拉深成形的最佳工艺参数组合,在最佳工艺参数条件下,铝锂合金的拉深系数达到了0.45.
재수치모의연구압변력、모료직경、철요모원각반경、변형온도등대5A90려리합금판재랍심성형영향적기출상,채용정교시험설계방법대랍심성형공예삼수진행료우화설계,병진행료상응적랍심성형시험연구,연구표명,변형온도대랍심성형영향최현저,기차시모료대소,이변형속도화압변력대소적영향교소,동시,통과대시험결과적계산、분석화총결,획득료5A90려리합금판재랍심성형적최가공예삼수조합,재최가공예삼수조건하,려리합금적랍심계수체도료0.45.
On the basis of numerical simulating the effects of holder force, diameter of blank, punch radius,die corner radius and temperature on deep drawing for 5A90 AI-Li alloy sheets, the deep drawing parameters were optimized by orthogonal experimental design method, and the corresponding deep drawing tests were car-ried out. The results show that the significant factors on deep drawing are temperature, diameter of blank,drawing speed and holder force in order. The optimal compounding of deep drawing parameters for 5A90 Al-Li alloy sheets were attained by computing, analyzing and summarizing the results, and the limit drawing coef-ficient reached 0.45 in the optimal parameter conditions.