第48卷第3期Vol.48No.3FORGING&STAMPINGTECHNOLOGY2023年3月Mar.2023减震器深孔活塞套管冷锻工艺数值分析及模具结构优化王晓伟(濮阳职业技术学院机电与汽车工程学院,河南濮阳457000)摘要:以减震器深孔活塞套管为研究对象,针对其因传统切削工艺材料利用率低而造成的生产成本高的问题,开发了两套少无切削的冷精锻成形工艺。首先,基于Deform-3D仿真平台分析了两种成形方案的成形结果,从填充效果和流线分布两个方面说明了冷精锻工艺的切实可行性;其次,比较了两种成形方案的模具结构、等效应力、锻后零件温差、成形力以及模具磨损,优选出更加可靠、简单的冷精锻方案;而后,对工艺进行了完善,分析了平锥头下冲棒、锥头下冲棒以及球头下冲棒的使用效果;最后,综合模拟分析结果进行了深孔活塞套管的冷锻试验。试验结果表明:制件填充充分,外观好,无坑洼、缺肉等缺陷,零件尺寸测量结果满足要求,批量化生产稳定,生产成本明显降低。关键词:深孔活塞套管;冷精锻;金属流线;模具结构;模具磨损DOI:10.13330/j.issn.1000-3940.2023.03.005中图分类号:TG316.3文献标志码:A文章编号:1000-3940(2023)03-0034-09NumericalanalysisoncoldforgingprocessandoptimizationondiestructurefordeepholepistonsleeveofshockabsorberWangXiaowei(CollegeofElectromechanicalandAutomotiveEngineering,PuyangVocationalandTechnicalCollege,Puyang457000,China)Abstract:Forthedeepholepistonsleeveofshockabsorber,aimingattheproblemofhighproductioncostcausedbythelowmaterialuti-lizationrateoftraditionalcuttingprocess,twosetsofcoldprecisionforgingprocesswithlesscuttingornocuttingweredesigned.Firstly,theformingresultsofthetwoformingschemeswereanalyzedbasedonDeform-3Dsimulationplatform,andthepracticalfeasibilityofcoldprecisionforgingprocesswasdemonstratedfromtheaspectsoffillingeffectandstreamlinedistribution.Secondly,themoldstructure,e-quivalentstress,temperaturedifferenceofpartsafterforging,formingforceandmoldwearofthetwoformingschemeswerecompared,andamorereliableandsimplecoldprecisionforgingschemewasoptimized.Then,theprocesswasperfected,andtheuseeffectsoflowerpuncheswithflatconehead,coneheadandballheadwereanalyzed.Finally,thecoldforgingtestofdeepholepistonsleevewascarriedoutbasedonthesimulationanalysisresult...
