【作者】 王玲； 张建民； 郎利辉； 张淳； 迟彩楼； 阚鹏；

【Author】 WANG Ling;ZHANG Jian-min;LANG Li-hui;ZHANG Chun;CHI Cai-lou;KAN Peng;Shenyang Aircraft Industry(Group) Co.,Ltd.;Tianjin Tianduan Aviation Teconology Co.,Ltd.;School of Mechanical Engineering and Automation,Beihang University;

【机构】 沈阳飞机工业(集团)有限公司； 天津天锻航空科技有限公司； 北京航空航天大学机械工程及自动化学院；

【摘要】 基于数值模拟的方法,对铝合金双曲面异形件进行工艺方案优化,提高零件的成形质量和成形效率。分析零件的几何特征和材料,提出3种可行的成形方案:刚性模拉深成形,主动式充液成形和被动式充液成形。基于有限元分析软件Dynaform对这3种成形方案进行模拟分析,并通过对比分析得出较优方案,在此基础上对较优方案进行进一步的优化。通过对3种成形方案数值模拟结果的对比分析,认为该零件较适合采用被动式充液成形。通过优化被动式充液成形的液室压力加载路径和反胀,把最大减薄率控制在10%以内,且不起皱。被动式充液与反胀工艺相结合的成形方案较传统的刚性模拉深工艺有明显的优势,其有效地控制了最大减薄率和减薄均匀性。更多还原

【Abstract】 Based on the numerical simulation method,the process scheme optimization of the aluminum alloy double curved profile is optimized to improve the forming quality and forming efficiency of the parts.Analyzing the geometric features and materials of the parts,three feasible forming schemes are put forward:the forming of the rigid die drawing,the active filling forming and the passive filling forming.Based on the finite element analysis software Dynaform to simulate and analyze these three kinds of forming schemes,and through the comparative analysis to obtain a better plan,on this basis,the optimization of the optimal scheme is further optimized.Through the comparison of the numerical simulation results of three kinds of forming schemes,it is considered that the part is more suitable for the use of passive filling.By optimizing the liquid chamber pressure loading path and the anti inflation,the maximum thinning rate is controlled.Compared with the traditional rigid die drawing process,the forming scheme has obvious advantages,and it can effectively control the maximum thinning rate and reduce the uniformity of the forming process.更多还原