3D-printing

3DPrintingTechnology2017050575张家祥1Three-dimensionalprintingtechnologyasanewthingisahighandnewtechnologyofmanufacturingoftheindustrialrevolutionsignificance,representsthenewtrendofworldmanufacturingindustrydevelopment,foracceleratingthedevelopmentofadvancedmanufacturingindustry,promotethetwodepthfusion,promotetransformationandupgradingofindustrieshavetheimportantleadingrole.The3-Dprintingtechnologywasfirstdevelopedinthenineteeneighties.Buthighcostputthemoutofthereachofmanyresearchersandbusinesses.Earlyprinterswerelimited.Highcostandlimitedusesmeantthe3-Dprintermarketwassmall.Now,lower-costprintersareavailabletoamuchwidermarket,includingsmallbusinessesandindividuals.2Whatis3DPrinting?Weallknowwhatprintingissolet’sbeginwiththe3Dpartof3Dprinting.3Disshorthandforthree-dimensional.Whenyouprintapageonaprinter,thereareonlytwodimensions:thefrontofthepageandthebackofthepage.Three-dimensionalprintingaddsathirddimension,volume.3Dprintingusesaprintertocreatethree-dimensionalobjects,forexample,acupordollorphonecase.33Dprintinghasthesequalities:Objectsarecreatedbyaddingordepositinglayersofmaterial,notsubtractingorcuttingoutpiecesfromablockofmaterial.Becauseobjectsarecreatedbyaddinglayers,thecomputerfilewithdetailsaboutyourmodelmustbeconvertedintoslicestheprinterwillcreatelayerbylayer.Printingathree-dimensionalobjectcantakehoursordaystocomplete,dependingonthecomplexityandsizeoftheobject.Costisbasedonmaterialsused,amongotherfactors.Incontrast,ifyoubuyapieceofwoodthencutoutpiecestocreateyourobjectyoupayfortheoriginalpieceofwood.4How3DPrintingisUsedToday3Dprintingismostlydonebybusiness,students,anddesigners.Homeorconsumeruseof3Dprintingismostlylimitedtopeopletryingoutthetechnology.However,there’salotofvalueinprintingthree-dimensionalobjectsforstudents,designers,andanyonewhoneedsasmallobjecttodemonstratetheirideasorcreateusableobjects.Studentsasyoungas10yearsoldalsomightusea3Dprinterinshopclass.It’sthefutureusesofthistechnologywhichhavepeopleexcited.Forexample,replacingtheplasticbackofyourTVremotemightinvolvegoingtoawebsite,findingthepart,thenclickingabuttontohavethepartprintedlocallywhereyoucanpickitup.Todayyoueitherreplacethecompleteremotecontrolorfigureoutwheretogetthereplacementpartwhichhasbeencreatedelsewhere,likelyoverseas.Moreinteresting,3Dprintingmakesitpossibletoexperimentwithfashionandotherpartsofourliveswetakeforgranted.Itmightbepossibletocreatemedicalimplants,forexample,usingtissuefromthepatient.5TheWorld‘sfirstfully3D-printedofficesettobebuiltinDubai.AconstructionfirmbasedinDubaihasannouncedplanstobuildtheworld’sfirst3D-printedskyscraper.6Thecompany,calledCazza,hasconfirmedthatitwillbeerectedintheUnitedArabEmirates.Itsaysitwilluseanewtechniquecalled“craneprinting”tocreatethebuilding.这栋大厦将会用到一种叫“起重机打印”的新技术。7Cazzaisyettodisclosethebuilding’splannedheightoranycommencementorcompletiondates,buttheEncyclopediaBritannicadescribesaskyscraperasabuilding”ofunusualheight,generallygreaterthan40or50stories.Concreteandsteelwillbetwoofthematerialsprintedbythecompany’scranes.8Theyareaddingnewfeaturestomakeitadaptabletohighwindspeedsalongwiththeuseofourlayersmoothingsystemthatcreatescompletelyflatsurfaces.Youwon’tknowit’s3Dprinted.9Gulfstatesays3DprintingwillallowittobuildmorecheaplyinfuturePrototypebuildingwillbeprintedlayer-by-layerandassembledonsiteCouldmeanDubai'sever-changingskylinewillsoondevelopevenfasterDubaisaysitwillbuilda2,000squarefeetstructureusinga3DprinterABCDContents10Buildingshavebeen3D-printedbefore,withthekeybenefitsbeginlowcostsandspeedycompletion.以前使用3D打印技术建造的建筑，有一个关键性的优点就是低成本且高效率。11Throughthetechnologies,theywillbeabletobuildarchitecturallycomplexbuildingatneverbeforeseenspeeds.Itisallabouteconomiesofscalewheretheinitialhightechno-logycostswillreduceastheyenterthemass-productionphase.通过这项技术，将以前所未见的速度建造从建筑学来看十分复杂的建筑。当进入批量生产阶段时，初始的科研费用将会减少，这完全是由于规模经济的结果。12Thisbuildingwillbeatestimonytotheefficiencyandcreativityof3Dprintingtechnology,whichwebelievewillplayamajorroleinreshapingconstructionanddesignsectors.13T谢谢观看HANKYOU!14