2024T3铝合金蒙皮拉形数值模拟与试验验证  

Numerical simulation and experimental verification of stretch forming for 2024T3 aluminum alloy skin

作　　者：傅垒 张彬 李婷 李利 刘成 FU Lei;ZHANG Bin;LI Ting;LI Li;LIU Cheng(Chinalco Materials Application Research Institute Co.,Ltd.,Beijing 102209,China;Intelligent Aerospace Manufacturing Engineering Technology Co.,Ltd.,Beijing 102209,China;Northeast Light Alloy Co.,Ltd.,Harbin 150060,China)

机构地区：[1]中铝材料应用研究院有限公司,北京102209 [2]航宇智造工程技术有限公司,北京102209 [3]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2024年第10期56-62,共7页Light Alloy Fabrication Technology

基　　金：中铝高端重点研发项目(ZG2237);中铝材料院横向项目(HX2454)。

摘　　要：蒙皮是构成飞机气动外形的关键零件,通常采用拉形工艺进行生产。基于通用分析软件ABAQUS,对2024T3铝合金蒙皮拉形进行了数值模拟,研究了板料尺寸、夹钳移动距离、模具上顶高度、摩擦因数对拉形主应变、次应变和厚度的影响,并通过试验进行验证。研究结果表明,当板料尺寸增大、夹钳移动距离减小、模具上顶高度减小、摩擦因数减小时,蒙皮的主应变减小、厚度增大,成形质量较好。As a key component for the aerodynamic shape structure,the aircraft skin is usually produced in the stretch forming process.Based on the general analysis software ABAQUS,numerical simulation of stretch forming was conducted on 2024T3 aluminum alloy skin.The skin primary strain,secondary strain,and thickness were studied and verified through experiments with different stretch forming parameters,i.e.sheet size,clamp movement distance,mold up height,and friction factor.The research results show that as the sheet size increases,the clamp movement distance decreases,the mold up height decreases,and the friction factor decreases,the skin primary strain will decrease and the thickness will increase,and the forming quality is better.

关 键 词：2024T3铝合金 蒙皮拉形 数值模拟 拉形工艺 

分 类 号：TG304[金属学及工艺—金属压力加工]