南昌航空大學(xué)科技學(xué)院HeatTreatmentofDieandMouldOrientedConcurrentDesignLIXiong,ZHANGHong-bing,RUANXueyu,LUOZhonghua,ZHANGYanAbstract:Manydisadvantagesexistinthetraditionaldiedesignmethodwhichbelongstoserialpattern.Itiswellknownthatheattreatmentishighlyimportanttothedies.Anewideaofconcurrentdesignforheattreatmentprocessofdieandmouldwasdevelopedinordertoovercometheexistentshortcomingsofheattreatmentprocess.HeattreatmentCAD/CAEwasintegratedwithconcurrentcircumstanceandtherelevantmodelwasbuilt.Theseinvestigationscanremarkablyimproveefficiency,reducecostandensurequalityofRandDforproducts.Keywords:diedesign；heattreatment；mouldTraditionaldieandmoulddesign,mainlybyexperienceorsemiexperience，isisolatedfrommanufacturingprocess.Beforethedesignisfinalized，theschemeofdieandmouldisusuallymodifiedtimeandagain，thussomedisadvantagescomeintobeing,suchaslongdevelopmentperiod,highcostanduncertainpracticaleffect.Duetostrongdesiresforprecision,servicelife,developmentperiodandcost,moderndieandmouldshouldbedesignedandmanufacturedperfectly.Thereforemoreandmoreadvancedtechnologiesandinnovationshavebeenapplied,forexample,concurrentengineering,agilemanufacturingvirtualmanufacturing,collaborativedesign,etc.Heattreatmentofdieandmouldisasimportantasdesign,manufactureandassemblybecauseithasavitaleffectonmanufacture，assemblyandservicelifeDesignandmanufactureofdieandmouldhaveprogressedrapidly，butheattreatmentlaggedseriouslybehindthemAsdieandmouldindustrydevelops，heattreatmentmustensuredieandmouldtherearegoodstateof1manufacture，assemblyandwearresistantpropertiesbyrequest.ImpertinentheattreatmentcaninfluencedieandmouldmanufacturingsuchasoverhardandsoftandassemblyTraditionallytheheattreatmentprocesswasmadeoutaccordingtothemethodsandpropertiesbroughtforwardbydesignerThiscouldmakethedesignersofdieandmouldandheattreatmentdivergefromeachother，forthedesignersofdieandmouldcouldnotfullyrealizeheattreatmentprocessandmaterialsproperties，andcontrarilythedesignersrarelyunderstoodtheserviceenvironmentanddesigningthought.Thesedivergenceswillimpacttheprogressofdieandmouldtoagreatextent.Accordingly，iftheprocessdesignofheattreatmentisconsideredintheearlydesigningstage，theaimsofshorteningdevelopmentperiod，reducingcostandstabilizingqualitywillbeachievedandthesublimationofdevelopmentpatternfromserialtoconcurrentwillberealizedConcurrentengineeringtakescomputerintegrationsystemasacarrier,attheverystartsubsequenteachstageandfactorshavebeenconsideredsuchasmanufacturing，heattreating，propertiesandsoforthinordertoavoidtheerrorTheconcurrentpatternhasdismissedthedefectofserialpattern,whichbringaboutarevolutionagainstserialpatternInthepresentworktheheattreatmentwasintegratedintotheconcurrentcircumstanceofthedieandmoulddevelopment，andthesystemicandprofoundresearchwasperformed1HeatTreatmentUnderConcurrentCircumstanceTheconcurrentpatterndiffersultimatelyfromtheserialpattern(seeFig1).Withregardtoserialpattern，thedesignersmostlyconsiderthestructureandfunctionofdieandmould，yethardlyconsidertheconsequentprocess，sothattheformermistakesareeasilyspreadbackwardsMeanwhile，thedesigndepartmentrarelycommunicateswiththeassembling，costaccountingandsalesdepartmentsTheseproblemscertainlywillinfluencethedevelopmentprogressofdieandmouldandthemarketforegroundWhereasintheconcurrentpattern，therelationsamongdepartmentsareclose，therelateddepartmentsall2takepartinthedevelopmentprogressofdieandmouldandhavecloseintercommunionwithpurchasersThisispropitioustoeliminationoftheconflictsbetweendepartments，increasetheefficiencyandreducethecostHeattreatmentprocessintheconcurrentcircumstanceismadeoutnotafterblueprintandworkpiecetakenbutduringdieandmoulddesigningInthisway，itisfavorabletooptimizingtheheattreatmentprocessandmakingfulluseofthepotentialofthematerials2IntegrationofHeatTreatmentCADCAEforDieandMouldItcanbeseenfromFig2thattheprocessdesignandsimulationofheattreatmentarethecoreofintegrationframeAfterinformationinputviaproductdesignmoduleandheattreatmentprocessgeneratedviaheattreatmentCADandheattreatmentCAEmodulewillautomaticallydividethemeshforpartsdrawing，simulationtemperaturefieldmicrostructureanalysisafterheattreatmentandthedefectofpossibleemerging(suchas3overheat,overburning)，andthentheheattreatmentprocessisjudgediftheoptimizationismadeaccordingtotheresultreappearedbystereoscopicvisiontechnologyMoreovertoolandclampingapparatusCADandCAMareintegratedintothissystemTheconcurrentengineeringbasedintegrationframecanshareinformationwithotherbranchThatmakesforoptimizingtheheattreatmentprocessandensuringtheprocesssound2.13-DmodelandstereoscopicvisiontechnologyforheattreatmentTheproblemsaboutmaterials，structureandsizefordieandmouldcanbediscoveredassoonaspossibleby3-Dmodelforheattreatme