COMPUTERAIDEDDESIGNANDCOMPUTERAIDEDMANUFACTURINGCADCAM計(jì)算機(jī)輔助設(shè)計(jì)和計(jì)算機(jī)輔助（CAD/CAM）THROUGHOUTTHEHISTORYOFOURINDUSTRIALSOCIETY，MANYINVENTIONHAVEBEENPATENTEDANDWHOLENEWTECHNOLOGIESHAVEEVOLVEDWHITNEYISCONCEPTOFINTERCHANGEABLEPARTS，WATTSSTEAMENGINE，ANDFORDISASSEMBLYLINEAREBUTAFEWDEVELOPMENTSTHATAREMOSTNOTEWORTHYDURINGOURINDUSTRIALPERIODEACHOFTHESEDEVELOPMENTSHASIMPACTEDMANUFACTURINGASWEKNOWIT，ANDHASEARNEDTHESEINDIVIDUALSDESERVEDRECOGNITIONIN0URHISTORYHOOKSPERHAPSTHESINGLEDEVELOPMENTTHATHASIMPACTEDMANUFACTURINGMOREQUICKLYANDSIGNIFICANTLYTHANANYPREVIOUSTECHNOLOGYISTHEDIGITALCOMPUTERSINCETHEADVENTOFCOMPUTERTECHNOLOGY,MANUFACTURINGPROFESSIONALSHAVEWANTEDTOAUTOMATETHEDESIGNPROCESSANDUSETHEDATABASEDEVELOPEDTHEREINFORAUTOMATINGMANUFACTURINGPROCESSESCOMPUTERAIDEDDESIGNCOMPUTERAIDEDMANUFACTURINGCADCAM，WHENSUCCESSFULLYIMPLEMENTED,SHOULDREMOVETHE“WALL”THATHASTRADITIONALLYEXISTEDBETWEENTHEDESIGNANDMANUFACTURINGCOMPONENTSCADCAMMEANSUSINGCOMPUTERSINTHEDESIGNANDMANUFACTURINGPROCESSESSINCETHEADVENTOFCADCAM，OTHERTERMSHAVEDEVELOPEDCOMPUTERGRAPHICSCGCOMPUTERAIDEDENGINEERINGCAECOMPUTERAIDEDDESIGNANDDRAFTINGCADDCOMPUTERAIDEDPROCESSPLANNINGCAPPTHESESPINOFFTERMSA11REFERTOSPECIFICASPECTSOFTHECADCAMCONCEPTCADCAMITSELFISABROADER，MOREINCLUSIVETERMITISATTHEHEARTOFAUTOMATEDANDINTEGRATEDMANUFACTURINGAKEYGOALOFCADCAMISTOPRODUCEDATATHATCANBEUSEDINMANUFACTURINGAPRODUCTWHILEDEVELOPINGTHEDATABASEFORTHEDESIGNOFTHATPRODUCTWHENSUCCESSFULLYIMPLEMENTED,CADCAMINVOLVESTHESHARINGOFACOMMONDATABASEBETWEENTHEDESIGNANDMANUFACTURINGCOMPONENTSOFACOMPANYINTERACTIVECOMPUTERGRAPHICSICGPLAYSANIMPORTANTROLEINCAD/CAM,THOUGHTHEUSEOFICG,DESIGNERSDEVELOPAGRAPHICIMAGEOFTHEPRODUCTBEINGDESIGNEDWHILESTORINGTHEDATATHATELECTRONICALLYMAKEUPTHEGRAPHICIMAGETHEGRAPHICIMAGECANBEPRESENTEDINATWODIMENSIONAL2D,THREEDIMENSIONAL3D,ORSOLIDSFORMATICGIMAGEARECONSTRUCTEDUSINGSUCHBASICGEOMETRICCHARACTERSASPOINTS,LINES,CIRCLES,ANDCURVESONCECREATED,THESEIMAGESCANBEEASILYEDITEDANDMANIPULATEDINAVARIETYOFWAYSINCLUDINGENLARGEMENTS,1REDUCTIONS,ROTATIONS,ANDMOVEMENTSANLCGSYSTEMHASTHREEMAINCOMPONENTS1HARDWARE,WHICHCONSISTSOFTHECOMPUTERANDVARIOUSPERIPHERALDEVICES2SOFTWARE,WHICHCONSISTSOFTHECOMPUTERPROGRAMSANDTECHNICALMANUALSFORTHESYSTEMAND3THEHUMANDESIGNER,THEMOSTIMPORTANTOFTHETHREECOMPONENTSATYPICALHARDWARECONFIGURATIONFORANICGSYSTEMINCLUDEACOMPUTER，ADISPLAYTERMINAL,ADISKDRIVEUNITFORFLOPPYDISKETTES,AHARDDISK,ORBOTHANDINPUT/OUTPUTDEVICESSUCHASAKEYBOARD，PLOTTER,ANDPRINTERTHESEDEVICES,ALONGWITHTHESOFTWARE,ARETHETOOLSMODERNDESIGNERSUSETODEVELOPANDDOCUMENTTHEIRDESIGNSTHEICGSYSTEMSCOULDENHANCETHEDESIGNPROCESSBYALLOWINGTHEHUMANDESIGNERTOFOCUSONTHEINTELLECTUALASPECTSOFTHEDESIGNPROCESS,SUCHASCONCEPTUALIZATIONANDMAKINGJUDGMENTBASEDDECISIONSTHECOMPUTERPERFORMSTASKSFORWHICHITISBETTERSUITED,SUCHASMATHEMATICALCALCULATIONS,STORAGEANDRETRIEVALOFDATA，VARIOUSREPETITIVEOPERATIONSSUCHANDASCROSSHATCHINGRATIONALEFORCADCAMTHERATIONALECADCAMISSIMILARTOTHATUSEDTOJUSTIFYANYTECHNOLOGYBASEDIMPROVEMENTINMANUFACTURINGITGROWSOUTOFANEEDTOCONTINUALLYIMPROVEPRODUCTIVITY，QUALITYAND，INTURNCOMPETITIVENESSTHEREAREALSOOTHERREASONSWHYACOMPANYMIGHTMAKEACONVERSIONFROMMANUALPROCESSESTOCADCAMINCREASEDPRODUCTIVITYBETTERQUALITYBETTERCOMMUNICATIONCOMMONDATABASEWITHMANUFACTURINGREDUCEDPROTOTYPECONSTRUCTIONCOSTSFASTERRESPONSETOCUSTOMERSINCREASEDPRODUCTIVITYPRODUCTIVITYINTHEDESIGNPROCESSISINCREASEDBYCADCAMTIMECONSUMINGTASKSSUCHASMATHEMATICALCALCULATIONSDATASTORAGEANDRETRIEVAL,ANDDESIGNVISUALIZATIONAREHANDLEDBYTHECOMPUTER，WHICHGIVESTHEDESIGNERMORETIMETOSPENDONCONCEPTUALIZINGANDCOMPLETINGTHEDESIGNINADDITION,THEAMOUNTOFTIMEREQUIREDTODOCUMENTADESIGNCANBEREDUCEDSIGNIFICANTLYWITHCADCAMALLOFTHESETAKENTOGETHERMEANSASHORTERDESIGNCYCLE,SHORTEROVERALLPROJECTCOMPLETIONTIME,ANDAHIGHERLEVELOFPRODUCTIVITYBETTERQUALITYBECAUSECADCAMALLOWSDESIGNERSTOFOCUSMOREONACTUALDESIGNPROBLEMSANDLESS2ONTIMECONSUMING，NONPRODUCTIVETASKS，PRODUCTQUALITYIMPROVESWITHCADCAMCADCAMALLOWSDESIGNERSTOEXAMINEAWIDERRANGEOFDESIGNALTERNATIVESANDTOANALYZEEACHALTERNATIVEMORETHOROUGHLYBEFORESELECTINGONEINADDITION,BECAUSELABORINTENSIVETASKSAREPERFORMEDBYTHECOMPUTER,FEWERDESIGNERRORSOCCURTHESEALLLEADTOBETTERPRODUCTQUALITYBETTERCOMMUNICATIONDESIGNDOCUMENTSSUCHASDRAWINGS，PARTSLISTS,BILLSOFMATERIAL,ANDSPECIFICATIONSARETOOLSUSEDTOCOMMUNICATETHEDESIGNTOTHOSEWHOWILLMANUFACTUREITTHEMOREUNIFORM,STANDARDIZED,ANDACCURATETHESETOOLSARE,THEBETTERTHECOMMUNICATIONWILLBEBECAUSECAD/CAMLEADSTOMOREUNIFORM,STANDARDIZED,ANDACCURATEDOCUMENTATION,ITIMPROVESCOMMUNICATIONCOMMONDATABASETHISISONEOFTHEMOSTIMPORTANTBENEFITSOFCADCAMWITHCADCAMTHEDATAGENERATEDDURINGTHEDESIGNOFPRODUCTCANBEUSEINPRODUCTTHEPRODUCTTHISSHARINGOFACOMMONDATABASEHELPSTOELIMINATETHEAGEOLD“WALL”SEPARATINGTHEDESIGNANDMANUFACTURINGFUNCTIONREDUCEDPROTOTYPECOSTSWITHMANUALDESIGN，MODELSANDPROTOTYPESOFADESIGNMUSTBEMADEANDTESTED,ADDINGTOTHECOSTOFTHEFINISHEDPRODUCTWITHCADCAM，3DCOMPUTERMODELSCANREDUCEAND,INSOMECASE,ELIMINATETHENEEDFORBUILDINGEXPENSIVEPROTOTYPESSUCHCADCAMCAPABILITIESASSOLIDSMODELINGALLOWDESIGNERSTOSUBSTITUTECOMPUTERMODELSFORPROTOTYPESINMANYCASESFASTERRESPONSETOCUSTOMERSRESPONSETIMEISCRITICALINMANUFACTURINGHOWLONGDOESITTAKETOFILLACUSTOMERSORDERTHESHORTERTHETIME,THEBETTERITISAFASTRESPONSETIMEISONEOFTHEKEYSTOBEINGMORECOMPETITIVEINANINCREASINGLYCOMPETITIVEMARKETPLACETODAY,THEMANUFACTURERFASTESTRESPONSETIMEISASLIKELYTOWINACONTRACTASTHEONEWITHTHELOWESTBIDBYSHORTENINGTHEOVERALLDESIGNCYCLEANDIMPROVINGCOMMUNICATIONBETWEENTHEDESIGNANDMANUFACTURINGCOMPONENTS,CADCAMCANIMPROVEACOMPANYSRESPONSETIMEHISTORICALDEVELOPMENTOFCADCAMTHEHISTORICALDEVELOPMENTOFCADCAMHASFOLLOWEDCLOSEBEHINDTHEDEVELOPMENTOFCOMPUTERTECHNOLOGYANDHASPARALLELEDTHEDEVELOPMENTOFICGTECHNOLOGYTHESIGNIFICANTDEVELOPMENTSLEADINGTOCADCAMBEGANINTHELATE1950SANDEARLY1960STHEFIRSTOFTHESEWASTHEDEVELOPMENT,ATMASSACHUSETTSINSTITUTEOFTECHNOLOGYMIT，OF3THEAUTOMATICALLYPROGRAMMEDTOOLSAPTCOMPUTERPROGRAMMINGLANGUAGETHEPURPOSEOFAPTWASTOSIMPLIFYTHEDEVELOPMENTOFPARTSPROGRAMSFORNUMERICALCONTROLMACHINESITWASTHEFIRSTCOMPUTERLANGUAGETOBEUSEDFORTHISPURPOSETHEAPTLANGUAGEREPRESENTEDAMAJORSTEPTOWARDAUTOMATIONOFMANUFACTURINGPROCESSESANOTHERSIGNIFICANTDEVELOPMENTINTHEHISTORYOFCADCAMFOLLOWEDCLOSEBEHINDAPT,ALSODEVELOPEDATMIT,WASCALLEDTHESKETCHPADPROJECTWITHTHISPROJECT,IVANSUTHERLANDGAVEBIRTHTOTHECONCEPTOFICGTHESKETCHPADPROJECTWASTHEFIRSTTIMEACOMPUTERWASUSEDTOCREATEANDMANIPULATEGRAPHICIMAGESONACRTDISPLAYINREALTIMETHROUGHOUTTHEREMAINDEROFTHE1960SAND70S,CADCONTINUEDTODEVELOPANDSEVERALVENDORSMADENAMESFORTHEMSELVESBYPRODUCINGANDMARKETINGTURNKEYCADSYSTEMSTHESEWERECOMPLETESYSTEMSINCLUDINGHARDWARE，SOFTWARE,MAINTENANCEANDTRAININGSOLDASAPACKAGETHESEEARLYSYSTEMSWERECONFIGUREDAROUNDMAINFRAMEANDMINICOMPUTERASARESULT,THEYWERETOOEXPENSIVETOACHIEVEWIDESCALEACCEPTANCEBYSMALLTOMEDIUMMANUFACTURINGFIRMSBYTHELATE1970S，BECAMECLEARTHATTHEMICROCOMPUTERWOULDEVENTUALLYPLAYAROLEINITTHEFURTHERDEVELOPMENTOFCADCAMHOWEVER,EARLYMICROCOMPUTERSDIDNOTHAVETHEPROCESSINGPOWER,MEMORY,ORGRAPHICCAPABILITIESNEEDEDFORICGCONSEQUENTLY,EARLYATTEMPTSTOCONFIGURECADCAMSYSTEMSAROUNDAMICROCOMPUTERFAILEDIN1983IBMINTRODUCEDTHEIBMPC，THEFIRSTMICROCOMPUTERTOHAVETHEPROCESSINGPOWER,MEMORY,ANDGRAPHICCAPABILITIESTOBEUSEDINCADCAMTHISLEDTOARAPIDINCREASEINTHENUMBEROFCADCAMVENDORSBYL989THENUMBEROFCAD/CAMINSTALLATIONSBASEDONMICROCOMPUTERSEQUALEDTHENUMBERBASEDONMAINFRAMEANDMINICOMPUTERCOMPUTERANDDESIGNTHECOMPUTERHASHADAMAJORIMPACTONTHEWAYEVERYDAYTASKSASSOCIATEDWITHDESIGNAREACCOMPLISHEDITCANBEUSEDINMANYWAYSTODOMANYTHINGSHOWEVER,ALLDESIGNTASKSACCOMPLISHEDUSINGACOMPUTERFALLINTOONEOFTHREEBROADCATEGORIESDESIGNMODELINGDESIGNANALYSISDESIGNREVIEWINCAD/CAMDESIGNMODELING,AGEOMETRICMODELOFAPRODUCTISDEVELOPEDTHATDESCRIBESTHEPARTMATHEMATICALLYTHISMATHEMATICALDESCRIPTIONISCONVERTEDTOGRAPHICFORMANDDISPLAYEDONACATHODERAYTUBETHEGEOMETRICMODELALSOALLOWSTHEGRAPHICIMAGETOBEEASILYEDITEDANDMANIPULATEDONCEDISPLAYEDDESIGNANALYSISTHECOMPUTERHASSIMPLIFIEDTHEDESIGNANALYSISSTAGEOFTHEDESIGNPROCESSSIGNIFICANTLYONCEAPROPOSEDDESIGNHASBEENDEVELOPED,ITISNECESSARYTOANALYZEHOWITWILLSTANDUPTOTHECONDITIONSTOWHICHITWILLBESUBJECTEDSUCHANALYSISMETHODSASHEATTRANSFERANDSTRESSSTRAINCALCULATIONSARETIMECONSUMINGANDCOMPLEXWITHCAD/CAM,SPECIALCOMPUTERPROGRAMSWRITTENSPECIFICALLYFORANALYSISPURPOSESAREAVAILABLEDESIGNREVIEWANOTHERSTEPINTHEDESIGNPROCESSTHATHASBEENSIMPLIFIEDBYTHECOMPUTERISDESIGNREVIEWTHISINVOLVESCHECKINGTHEACCURACYOFALLASPECTSOFTHEDESIGNTHEREARESEVERALICGCAPABILITIESTHATMAKEDESIGNREVIEWINCAD/CAMEASIERTHANWITHMANUALDESIGNCADTOCAMINTERFACEWITHCADCAM,THEREALINTERFACEBETWEENTHEDESIGNANDMANUFACTURINGCOMPONENTSISTHECOMMONDATABASETHEYSHARETHISISTHEESSENCEOFCADCAMWITHMANUALDESIGNANDMANUFACTURING,ENGINEERSGOTHROUGHEACHSTEPINTHEDESIGN,DRAFTERSPRODUCEDRAWINGSANDOTHERDOCUMENTSTOCOMMUNICATETHEDESIGN,MANUFACTURINGPERSONNELUSETHEDRAWINGSTODEVELOPPROCESSPLANS，ANDSHOPPERSONNELACTUALLYMAKETHEPRODUCTWITHTHEOLDAPPROACH，UNTILTHEDESIGNANDDRAFTINGPERSONNELCOMPLETEDTHEIRWORK,THEMANUFACTURINGPERSONNELDIDNOTSEEITTHEDESIGNANDDRAFTINGDEPARTMENTDIDITSJOBAND“THREWTHEPLANSOVERTHEWALL”TOMANUFACTURINGSOITCOULDDOITSJOBTHISAPPROACHLEDTOCONTINUALBREAKDOWNSINCOMMUNICATIONASWELLASPOORRELATIONSBETWEENTHEDESIGNANDMANUFACTURINGCOMPONENTSTHERESULTWASALOSSOFPRODUCTIVITYWITHCADCAMMANUFACTURINGPERSONNELHAVEACCESSTOTHEDATACREATEDDURINGTHEDESIGNPHASEASSOONASTHEYARECREATEDATANYPOINTINTHEDESIGNPROCESS,THEYCANCALLUPINFORMATIONFROMTHEDESIGNDATABASEANDUSEITSINCETHEDATAARESHAREDFROMSTARTTOFINISH,THEREARENOSURPRISESWHENTHECOMPLETEDDESIGNISREADYTOBEPRODUCEDWHILEDESIGNERSARECREATINGTHEDATABASEANDDRAFTERSAREDOCUMENTINGTHEDESIGN，MANUFACTURINGPERSONNELCANBEPROGRAMSEVERYTHINGNEEDEDBYMANUFACTURINGPERSONNELTOPRODUCETHEPRODUCTISCONTAINEDINTHECOMMONDATABASETHEMATHEMATICALMODELS,GRAPHICIMAGES，BILLSOFMATERIAL，PARTSLISTS，SIZE，F(xiàn)ROMLOCATIONALDIMENSIONS,TOLERANCESPECIFICATIONSANDMATERIALSPECIFICATIONSAREALLCONTAINEDDATABASE計(jì)算機(jī)輔助設(shè)計(jì)和計(jì)算機(jī)輔助（CAD/CAM）縱觀人類(lèi)工業(yè)社會(huì)的歷史，許多發(fā)明獲得了專利，整個(gè)新技術(shù)也逐漸形成?；萏啬岬耐ㄓ昧慵乃悸?，瓦特的蒸汽機(jī)和福特的流水線不僅是幾個(gè)少數(shù)的發(fā)展階段而且是人類(lèi)工業(yè)的幾個(gè)重要的發(fā)展階段。正如我們所知的任何一個(gè)這樣的發(fā)展都影響了制造業(yè)并且在歷史的掛鉤中贏得了這些個(gè)體應(yīng)得的承認(rèn)?；蛟S單個(gè)的發(fā)展影響制造業(yè)更快，而影響比先前技術(shù)更大的是數(shù)字電腦。自從電腦技術(shù)出現(xiàn)以來(lái)，制造業(yè)人員一直希望自動(dòng)化設(shè)計(jì)過(guò)程和使用數(shù)據(jù)庫(kù)開(kāi)發(fā)自動(dòng)制造過(guò)程。計(jì)算機(jī)輔助設(shè)計(jì)/計(jì)算機(jī)輔助制造CAD/CAM，當(dāng)成功執(zhí)行，應(yīng)該消除存在于設(shè)計(jì)和生產(chǎn)部件之間的傳統(tǒng)屏障。CAD/CAM意味著用電腦進(jìn)行設(shè)計(jì)和制造過(guò)程。因?yàn)镃AD/CAM的出現(xiàn)，其他方面也發(fā)展起來(lái)計(jì)算機(jī)圖形（CG）電腦輔助工程（CAE）電腦輔助設(shè)計(jì)和繪圖設(shè)計(jì)（CADD）計(jì)算機(jī)輔助工藝規(guī)劃（CAPP）這些附帶條件是指包括解答11項(xiàng)具體方面的CAD/CAM的概念而CAD/CAM本身就是一個(gè)更廣泛平臺(tái)，它是在生產(chǎn)的自動(dòng)化和集成的核心。CAD/CAM成功的一個(gè)關(guān)鍵目標(biāo)是創(chuàng)建可以用來(lái)產(chǎn)品的數(shù)據(jù)當(dāng)成功實(shí)施的產(chǎn)品設(shè)計(jì)的發(fā)展數(shù)據(jù)庫(kù)。CAD/CAM致力于一個(gè)在設(shè)計(jì)和生產(chǎn)部件分享通用的數(shù)據(jù)庫(kù)的公司。交互式計(jì)算機(jī)圖形學(xué)ICG在CAD/CAM扮演一個(gè)重要角色，雖然ICG用途上，設(shè)計(jì)師沖洗被設(shè)計(jì)的產(chǎn)品的一個(gè)圖表圖象，當(dāng)存放電子上組成圖表圖象的數(shù)據(jù)。圖表圖象在二維可以被提出二維（2D），三維3D，或者固體格式化。ICG圖象被修建使用這樣基本的幾何字符象點(diǎn)、線、圈子和曲線。一旦生成，這些圖象可以容易地被編輯和被操作用各種各樣的方式包括擴(kuò)大、減少、自轉(zhuǎn)和運(yùn)動(dòng)。LCG系統(tǒng)有三個(gè)主要成份1硬件，包括計(jì)算機(jī)和各種各樣的外圍設(shè)備；2軟件，包括系統(tǒng)的計(jì)算機(jī)程序和技術(shù)指南；3設(shè)計(jì)師，最重要三個(gè)組分。ICG系統(tǒng)的典型的硬件構(gòu)造包括一個(gè)電腦，一個(gè)顯示終端、磁盤(pán)的一個(gè)驅(qū)動(dòng)器單位，一個(gè)硬盤(pán)或者兩個(gè)；并且輸入輸出設(shè)備例如鍵盤(pán)，繪圖器和打印機(jī)。這些設(shè)備，與軟件一起，是現(xiàn)代工具設(shè)計(jì)師用以開(kāi)發(fā)和提供他們的設(shè)計(jì)的。ICG系統(tǒng)能通過(guò)允許人的設(shè)計(jì)師集中提高設(shè)計(jì)過(guò)程于設(shè)計(jì)過(guò)程的智力方面，例如概念化和做出基于評(píng)斷的決定。計(jì)算機(jī)執(zhí)行它更好地適合，例如數(shù)據(jù)的各種各樣的反復(fù)操作數(shù)學(xué)演算、存貯與檢索，和各種各樣的反復(fù)操作比如交叉涂畫(huà)。CAD/CAM的基本原理。它來(lái)源于一個(gè)需要不斷提高生產(chǎn)率，質(zhì)量和反過(guò)來(lái)的競(jìng)爭(zhēng)力。還有其他原因，可能使公司從手工流程轉(zhuǎn)換為CAD/CAM的提高生產(chǎn)力；質(zhì)量更好；更好的溝通；共同的數(shù)據(jù)庫(kù)與制造；降低建造成本原型；更快的響應(yīng)客戶。增加生產(chǎn)率在設(shè)計(jì)過(guò)程中生產(chǎn)率提高了的CAD/CAM。耗時(shí)的任務(wù)，如數(shù)學(xué)計(jì)算。數(shù)據(jù)存儲(chǔ)與檢索，可視化設(shè)計(jì)是由計(jì)算機(jī)處理，從而使設(shè)計(jì)者有更多的時(shí)間花費(fèi)在構(gòu)思并完成設(shè)計(jì)。此外，所需的時(shí)間量的設(shè)計(jì)文件，可顯著降低CAD/CAM的計(jì)算機(jī)輔助設(shè)計(jì)。采取共同所有這些意味著更短的設(shè)計(jì)周期，縮短整個(gè)項(xiàng)目的完成時(shí)間，并提高生產(chǎn)率水平。更好的質(zhì)量由于CAD/CAM允許設(shè)計(jì)人員更專注于實(shí)際的設(shè)計(jì)問(wèn)題，并且較少的耗費(fèi)在時(shí)間、非生產(chǎn)性的任務(wù)上，產(chǎn)品的質(zhì)量提升是用CAD/CAMCAD/CAM允許設(shè)計(jì)者檢測(cè)各種各樣的設(shè)計(jì)選擇和在選擇其中之一之前全面地分析每個(gè)選擇。另外，因?yàn)閯趧?dòng)強(qiáng)度任務(wù)由計(jì)算機(jī)執(zhí)行，所以只有少量設(shè)計(jì)錯(cuò)誤生成。這些所有都進(jìn)一步改善產(chǎn)品質(zhì)量。更好的溝通設(shè)計(jì)文件例如圖形圖畫(huà)，零件單，用料清單，并且這些規(guī)格被用工具聯(lián)系起來(lái)對(duì)設(shè)計(jì)者和那些制造者。越一致，規(guī)范化，并且這些工具越精確，溝通將越便捷。由于CAD/CAM導(dǎo)致更加一致化，規(guī)范化的和文件的準(zhǔn)確化，所以它提升了溝通。共同數(shù)據(jù)庫(kù)這是其中一個(gè)CADCAM的最重要的好處。使用CAD/CAM數(shù)據(jù)產(chǎn)品的設(shè)計(jì)過(guò)程中生成的產(chǎn)品可以使用該產(chǎn)品。他們共享一個(gè)數(shù)據(jù)庫(kù)來(lái)幫助消除分離設(shè)計(jì)和制造功能的古老的“墻”。降低原型成本使用手工設(shè)計(jì)，模型和原型的設(shè)計(jì)必須制作和檢測(cè)，增加了產(chǎn)品完成的成本。使用CAD/CAM三維電腦模型將減少甚至在某方面消除制造昂貴模型的需要。CAD/CAM這樣的能力使在許多方面允許設(shè)計(jì)師用電腦模型代替固體模型作為原型。更快回應(yīng)顧客反應(yīng)時(shí)間在制造業(yè)中是很重要的。多長(zhǎng)時(shí)間滿足顧客的要求時(shí)間越短越好?？焖俚姆磻?yīng)時(shí)間是在市場(chǎng)競(jìng)爭(zhēng)日益激烈中增加競(jìng)爭(zhēng)力的關(guān)鍵之一。如今，制造商最快響應(yīng)時(shí)間可能用最低出價(jià)贏得競(jìng)標(biāo)合同?？s短整個(gè)設(shè)計(jì)周期并提高設(shè)計(jì)和制造零部件之間的溝通。CAD/CAM能提高企業(yè)的反應(yīng)時(shí)間。CAD/CAM的歷史發(fā)展CADCAM的歷史發(fā)展在計(jì)算機(jī)科技的發(fā)展之后緊密跟隨了和對(duì)應(yīng)了ICG技術(shù)的發(fā)展。使得CADCAM的重大發(fā)展在20世紀(jì)50年代和60年代初期末期開(kāi)始了。最先發(fā)展的是在麻省理工學(xué)院MIT進(jìn)行的刀具控制程序自動(dòng)編制系統(tǒng)APT計(jì)算機(jī)程式語(yǔ)言。APT的目的是將數(shù)字控制器部分方案的開(kāi)發(fā)進(jìn)行簡(jiǎn)化。它是為此計(jì)劃被使用的第一種計(jì)算機(jī)語(yǔ)言。APT