2A10铝合金钉套成型过程有限元分析及其验证  

Finite element analysis and verification of the rivet sleeve forming process of 2A10 aluminum alloy

作　　者：苗勇胜 孟祥庆 于汇志 谢睿勋 邹晓辉[3] MIAO Yongsheng;MENG Xiangqing;YU Huizhi;XIE Ruixun;ZOU Xiaohui(Research Center for Metallic Wires,Northeastern University,Shenyang 110819,China;Aerospace Precision Industry Co.,Ltd.,Tianjin 300300,China;China Aviation Industry Corporation Shenyang Aircraft Design and Research Institute,Shenyang 110035,China)

机构地区：[1]东北大学金属型线材研究中心,辽宁沈阳110819 [2]航天精工股份有限公司,天津300300 [3]中国航空工业集团公司沈阳飞机设计研究所,辽宁沈阳110035

出　　处：《轻合金加工技术》2024年第8期57-63,共7页Light Alloy Fabrication Technology

摘　　要：通过Deform有限元分析,研究了不同模具下2A10铝合金钉套底部深孔成型时金属流动情况。根据径向偏移量曲线及行程载荷曲线,有倒圆角凸模模具相较于无倒圆角模具所受最大载荷更小,有效提高了工件的成型质量,延长了模具寿命。分析了不同模具的头部成型过程中的等效应力应变、金属流动及行程载荷。优化的完全倒圆角凸模模具相较于初始凸模模具,头部成型的金属流动性更好,原凸模模具承受载荷更大,更容易使模具损坏。使用优化的凸模模具时,头部成型更加合理,且变形更加均匀。The metal flow in the bottom deep hole was studied through Deform finite element analysis when 2A10 aluminum alloy rivet sleeves were formed with different molds. The analysis of radial offset curves and stroke load curves show that chamfered male molds bears a smaller maximum load than unchamfered ones, effectively improving workpiece quality and mold life. The analysis was carried on the changes in equivalent stress-strain, metal flow, and stroke load during the head forming process with the optimized fully-chamfered male mold and the original one. The former mold leads to smoother metal flow, less bearing load, and less damage to the mold. With the former mold, the head forming is more reasonable and the quality is more uniform.

关 键 词：2A10铝合金钉套 DEFORM 模具 行程载荷 成型质量 

分 类 号：TG702[金属学及工艺—刀具与模具] TG938