铍铝合金棒材半固态挤压成形研究

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中图分类号：TG146 文献标志码：A 文章编号：2095-2945（2025）24-0078-04

Abstract：Semi-solidextrusionofberyllumaluminumaloywasstudiedbyusingsemi-solidextrusionmethod.Theffectsof diedesignswithdiferentdieanglesontheextrusionforceoftheindenter，theforceontheblank，andthedeformatinof the blankduringtheextrusiondeformationprocesswereevaluatedthroughnumericalsimulation.Theresultsshowthattheload increasesrapidlywiththeincreaseinthedeformationofthebiletatfirst，thenrisesslowlyandfinallyaceleratesagain；with theincreaseintheextrusiondieangle，therateofpressureincreaseontheramincreases，requiringagreaterextrusionforce; andthe flowrate ofthe bilet during pressing does notchange significantlywith theincrease in theextrusion dieangle.

Keywords：berylliumaluminumaloy；semisolid;extrusion force; extrusion dieangle;numerical simulation

铍具有低密度、高熔点、高刚度等许多优点，被广泛应用于国防、航空航天等高科技领域。（剩余3479字）