金属薄板成形模拟及回弹规律研究

《金属薄板成形模拟及回弹规律研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、掰疆大学硬士研究生学斑论文一袅爝薄扳成搿模拟及鄹弹媲律研爨90872V薅耍为勰决级避横县使粥的带料上的局粼辑弯嬲撵的麟度闻题，本文建立了搋毒交澎隧熬过援纛攘叛攘整。浆鲻ABAQUS／Explicit较侮分裂靖宽教砉荦驽积譬投辑弯的情况，邋过对比研究不阁相对弯曲半径褒不同过压量聚传下的成形模羧，寻找逡合邂麓工艺参数，谴褥舞弯爱翡强撵羧零；为研究预弯工艺对质续成形的影响，本文建立了预弩成形模拟模型；采用ABAQUSflExplicit敬终努笺对变瑗预弯氍窜扳颚瓷戆{{孽瑷，设诗了一羝戮羲毒位嚣与颧弯角艘的维合模拟条{牛进行模拟，来探索预弯对后续成形的影响；枚鹈经遭颈弯，掰遴入遗愿蘧成形模羧，褥爨

2、会骥翡工慧缀会参数，使褥攥弯嚣的回弹满足冲惩产品的公差要求，实现减少或取消后续的整形工位。镑黠不囊粥繁法兰鹃锭深零转震璧控裁滴簇，本文礤究了蓬速力控凝薄藏形质量的影响；潦取具有代表性的方盒裂拉深模楚，农设计的不间压边力作嗣方式下，努辑救渫零磐袋鼯爱静菠支分碟，霉发炎纯歉嚣弹请凝，餐逡褒级遴模最设计主可行的压边力控涮方式；剃蠲模拟分帮千结聚，设计了～种新的压边力控到税稳。关键词：过毯整、预寄工艺、潮释、藏边力新疆大学硕士研究生学位论文一金属薄板成形模拟及回弹规律研究ABSTRA

3、：TInordertoacquirethelocalbendingspring-backaccuracyofshee

4、tmetalstripofaprogressivediedesign，thethesisaimstobuildironingdepthsimulationmodelinabendingdeformationzone．Accordingtotheobjectiveconditionofwidesheetbendingandnarrowsheetbending，aseriesofformingsimulationwithdifferentrelativebendingradiusatdifferentironingdepthispreformedwiththeFEcodeABAQUS／Expli

5、cit．Theaimistofindproperprocessandtogettheleastspring—backdata．Thethesisestablishesapre—bendingformingsimulationmodeltostudytheinfluenceofpre—bendingprocessonthecontinuousforming．Accordingtotheobjectiveconditionofwidesheetbendingandnarrowsheetbending，thispaperdesignsaseriesofsimulationconditioncomb

6、iningpre—bendinglocationandpre-bendingangletocarryoutsimulationusingABAQUS／Explicitsoftwaretostudytheeffectofpre—bendingonthecontinuousprocess．Thepre—bendedsheetmetalisputintoanironingdepthsimulationmodeltofigureoutthereasonableprocessparameterandwithittogetthespring～backdatameetingthestampingprodu

7、ctclearancerequirementstomakeitlessornotnecessarythecontinuousstarionsizingprogress．Toresolvetheproblemsexisledintheirregularflangedrawingpartproductsqualitycontrol，thispaperinvestigatetheinfluenceofblankholdingforceonformingqualitythroughthetypicalrectangularcasedrawingmodel，underdifferentdesigned

8、blankholdingforcetoanalysisthemetalsheetstressdistribution、thicknessvariationandspring—backstateafterbeingdrawnsimulation，topickoutapracticableblankholdingforcecontrolmethodonprogressivediedesign．Usingthean