2A10铝合金钉套成型过程有限元分析及其验证.pdfVIP

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LIGHTALLOYFABRICATIONTECHNOLOGY2024,Vol.52,No8轻合金加工技术

D0I:10.13979/j.1007-7235.2024.08.009

2A10铝合金钉套成型过程有限元分析

及其验证

苗勇胜，孟祥庆²，于汇志²,谢睿勋²,邹晓辉

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）

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。

关键词：2A10铝合金钉套；Deform；模具；行程载荷；成型质量

中图分类号：TG702;TC938文献标志码：A文章编号：1007-7235(2024)08-0057-07

Finiteelementanalysisandverificationoftherivetsleeveforming

processof2A10aluminumalloy

MIAOYongsheng,MENGXiangqing,YUHuizhi?,XIERuixun,ZOUXiaohui?

(1.ResearchCenterforMetallicWires,NortheasternUniversity,Shenyang110819,China;

2.AerospacePrecisionIndustryCo.,Ltd.,Tianjin300300,China;3.ChinaAviationIndustry

CorporationShenyangAircraftDesignandResearchInstitute,Shenyang110035,China)

Abstract:ThemetalflowinthebottomdeepholewasstudiedthroughDeformfiniteele-

mentanalysiswhen2A10aluminumalloyrivetsleeveswereformedwithdifferentmolds.The

analysisofradialoffsetcurvesandstrokeloadcurvesshowthatchamferedmalemoldsbears

asmallermaximumloadthanunchamferedones,effectivelyimprovingworkpiecequalityand

moldlife.Theanalysiswascarriedonthechangesinequivalentstress-strain,metalflow,

andstrokeloadduringtheheadformingprocesswiththeoptimizedfully-chamferedmale

moldandtheoriginalone.Theformermoldleadstosmoothermetalflow,lessbearingload,

andlessdamagetothemold.Withtheformermold