金属薄板直壁件数字化渐进成形机理及工艺的研究

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1、辈中科技大学硕士学位论文滚要金霪缀辫鼗签萃煮溪逑壤形终隽一麓羧字攮鬃瞧爨王攘零，楚在圭畿笼充专零钱瘸雪本攀饕秘暴蒺夫淫蹴翡。壹予崽誉辫耍凌诗潮逑搂鼹，荬豢炼蕊蒋煮缀邋予产翕开发黢段熬扳辩零传成彤，如丑援照、汽车覆盏搏游，W以大犬缎短产菇努发潮期，降低开发成本帮新产晶开发的风除。在囊蕊簿嫒囊壁§黪骥黪孛，爨潦辩决嚣蠢慧蕊嚣浚妻揍液辫赛莪蒜爨蕊溪。搴文蔷先分树了数羟蕈煮渐滚成形虢一般避程。爨疆j耩辩戒形静辩个基本变形糕黛，得出板料爨燃液形怒在弹悭颓拉伸下厦艇谶程的弯曲嗣反向弯曲谶摆的结论。并用应变奎量理论窝繇变壤量理谂势辑了弯爨隆羧窝反趣驽麓羚段懿变澎壤理。校瓣纛缮梃骥，努臻了笼注豢搜蔽

2、辩辘蹇砉蘧黪滚漤，雾藏褰遵凌藏澎誊爨靛霹嚣瞧进孬努辑。崮予羧按或澎静符煮t路径麓潮瀚纛疆律热互瓣关熏要。零文首先蒜结了念耩薄板盖壁件的鼹径舰划方淤，即数控獠滞盛接生成G代码的路径搜划帮uG崖接造型的黪径燕鬣互熬，搬较了鬻释君法戆鹱跤意。在嚣蒸旗上巍逡篓子磐G籍经撬囊楚蕊德方法。强擞摇始滚径瓣剃加工邕鼗壁秫瓣，分褥了豢整襻童爱鄢分构鏊簿交德精挽，纛壁熬势瓣濂长壤鸯瑟爱粕擒变变纯耩穗，并分援魄较了惑坯玲羧，孛窝逶次淤羧，壹麓残形竞除疆的隧格变健髓{芷。簸聪，本文总结?愈属溅髓掇镎，黪睫成形襞爨翁工蓑参鼗。、麓毽霉：焱瓣葭霹蕊攀羧事毪溅谶髓黟豢擦鏊瘕巍逮凌辫莰蘧麓辫华中科技大学硕士学位论文

3、AbstractAsadigitalflexiblemanufactttdngtechnology,sheetmetalnumericalcontrolsingle—pointincrementalformingWaSproposedfirstlybyaJapaneseresearcherwhosenameisShigeoMATSUBARAinthe1990’S．Withoutdiesandpuncheswhicharenecessaryinthetraditionalplasticformingforsheetmetal，thenewtechnologyisespecfallysu

4、itableforthesheetmetalpartforminginthecourseofdevelopingnewproductssuchasarticlesofdailyuseandcoveringpartsofautomobile．Atthesametime．itiswidelybelievedthatapplyingtothetechnologycallgetshortenedcycleofproductdevelopment,reducedcostandlessinvestmentrisk．However,thetallerstraight—wallpartscallno

5、tbeproduceddirecfly,whichiSthemostdifficultproblemtoberesolved．Inthispaper,thegeneralprocessbasedondigitalincrementalformingisdiscussed＆say．Twobasicdeformationmodelsareusedtoanalyzethewholeprocessofdeformation．Thesheetmetalissubjectedtobendingandunbending州mstretching，whicharerepeatedinthecourse

6、offormingprocess．Then，thedeformationmechanismofbendingandunbendingisdeveloped．Accordingtothemechanism,whytallerswai旃t-wallpartsc黼notbeproduceddirectlyisexplainedclearty．Secondly,thepossibilityofmulti—passformingisdiscussed．AccordingtothecharacterofCNCforming，routeplanningmethodismostimportantfo

7、rstraight-wallparts’forming。Twogotrouteplanningmethodsa揩compared．Anewplanningmethodisdesignedtomakemetalfloweasily．Thechangeofstraight-wall’Sthicknessisresearched．Thechangedmarksonthepart’8downsurfaceofthreestages，thati8；thefirstp