机械自动化 外文翻译 中英翻译 模具的起源和发展.docx
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机械自动化 外文翻译 中英翻译 模具的起源和发展.docx
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机械自动化外文翻译中英翻译模具的起源和发展
Theoriginanddevelopmentofmold
ZhoupingYin1,HanDing2,andYoulunXiong1
1SchoolofMechanicalScienceandEngineering,
HuazhongUniversityofScienceandTechnology,China
2CenterforIntelligentDesign,Automationand
Manufacturing,FacultyofScienceandTechnology
CityUniversityofHongKong,China
Moldisthebasisforindustrialproductionprocessesandequipment,knownasthemotherofindustry75%oftheroughindustrialproducts,components,50%ofthefinishingpartfromthemoldformingthevastmajorityofplasticproductsarealsofromthemoldforming.Asthenationaleconomy,basicindustries,moldinvolvedinmachinery,automobile,lightindustry,electronics,chemicals,metallurgy,buildingmaterialsinvariousindustries,averywiderangeofapplications.
1.theoriginof
Inindustrialproduction,usingavarietyofpressesandinstalledinthepressonthespecifictools,throughthepressuresystemofthemetalornon-metallicmaterials,theshapeoftherequiredpartsorproducts,suchspecializedtoolscollectivelyreferredtoasmold.
Modernmoldmanufacturingtechnologyhaswitnessedrapiddevelopmentofmodernmanufacturingtechnologyhasbecomeanimportantcomponent.IfmoldCAD/CAMtechnology,moldlaserrapidprototypingtechnology,precisiondieformingtechnology,theultra-precisionprocessingtechnologyofmold,moldinthedesignusingfiniteelementmethod,boundaryelementmethodtoflow,cooling,heattransferprocessofdynamicsimulationtechnology,moldCIMStechnologyhasbeeninthedevelopmentofmoldDNMtechnologyandnumericalcontroltechnology,coveringnearlyallofmodernmanufacturingtechnology.
2.classification
Scientificclassificationofthedieontheplanneddevelopmentofthemoldindustry,thesystematicresearchanddevelopmentofmoldproductiontechnology,researchanddevelopmentoftouchwithtechnicalstandards.RealYanprofessionalthantheproduction,haveimportanttechnicalandeconomicsignificanceoftheresearchanddevelopmentofmoldtechnicalstandardsystem,withamoreimportantorderofvalueisitsfoundation.
1).open-mode:
simplestructure,smallsize,lightweight,easymanufacturingandlowcost,butthelifeexpectancyislow,accuracy,precisionsuitableforlessdemanding,atthebeginningofasimple.Smallbatch,ortrialoftheblankingpieces.
2).guideplate:
moreaccuratethanopen-modehigh,suitableforthebeginningofsimple,smallsizeoftheworkpieceblankingpieces.Askedthepressstrokeisnotgreaterthanthethicknessofleadplate.
3).guidecolumn:
column-orientedguidetoensureuniformclearanceblanking,blankingtheworkpiecesizeandhighprecisionparts,moldsandlongservicelife,easyinstallation,suitableformassproduction.
4).continuousmode:
requireprecisepositioningofmaterial,sothateachshapewithintheholeandpositionaccuracycanbeguaranteed.Highproductivity,withacertainpunchingaccuracy,suitableformassproduction.
5).compounddie:
stampingpartseachpositionwithintheshape,highprecision,suitableformassproduction.
Classificationaremanywaystodieinthepastfrequentlyusedare:
Moldstructureaccordingtocategoriessuchassingle-processmode,compounddies,etc.;
Bytheuseofobjectclassification,suchasautopaneldies,electricalmold,etc.;
Classifiedaccordingtothenatureofprocessingmaterialssuchasmetalproductsusingmolds,non-metallicsystem,withthemold,etc.;
Classificationaremanywaystodieinthepastfrequentlyusedare:
Moldstructureaccordingtocategoriessuchassingle-processmode,compounddies,etc.;
Bytheuseofobjectclassification,suchasautopaneldies,electricalmold,etc.;
Classifiedaccordingtothenatureofprocessingmaterialssuchasmetalproductsusingmolds,non-metallicsystem,withthemold,etc.;
Moldmakingmaterials,accordingtocategories,suchascarbidedie,etc.;accordingtothenatureoftheprocess,suchasthedrawingdie,powdermetallurgymold,forgingdieandsoon.Theseclassificationmethods,somearenotfullyreflectthestructureofvariousmoldsandformingcharacteristicsofprocessingtechnology,andtheirusefunction.Todothis,theuseofmoldstoadoptaprocessforformingthenatureanduseofobject-based,integratedclassificationmethod,themoldisdividedintotencategories,themajorcategoriesshowninTablemold,butalsounderthemoldstructure,materials,theuseoffunctionsandsystemmodelapproachisdividedintoanumberofClassorvarieties.
3.moldmaterials
Thechoiceofsteelmoldsforthesuccessfulapplicationofplastics,andthechoiceofresinmoldedproductsfortheultimateperformancerequirementsofequalimportance.Astheresinbasishavingpartiespreparedtomeettheplasticintheapplicationperformancerequirements,likealloysteelalsoneedtomeetspecificperformancerequirementsinuse.Someapplicationsrequirehighhardness,highwearresistanceofdiesteel,inordertoenhancethedurabilityofpartinglines,whileotherapplicationsZexuhighertoughnessofdiesteel,toresistthemechanicalfatigue.Ingeneral,withhigherhardnessandwearresistanceofsteelmorebrittle,butalmostallcases,thetoughnessofthesteelstronger,itsabrasion-resistantsteelandsteel(adhesionabrasion),andresistantglassfiberormineralfillingResinabrasionperformancewillbeweakened.Moldmakerscanchoosetousestainlesssteel,tomostoftheotherpairsofsteelmoldingcorrosiveeffectofresin.Thehigherthehardnessofsteel(Rockwell55orhigher),theintegrityofthepartinglinewillbesignificantlyincreased,inthepartinglineofoffice,steelandsteelmoldcorepullingalongtheportwillhaveoneoralloftwosteelsurfacesRockwellhardnessrangeshouldbebetween55toRockwell58.Inordertopreventglassormineralfilledresinmoldabrasion,itisrecommendedtoconsidertheembeddedgateatA-2,D-2orM-2steel,andwiththegateatthecorrespondingcoresembeddedinwear-resistantsteel.
Metalscommonlyusedmoldmaterials:
M-2Rc62-64
Extremelyhighhardness,toughnessisgood,extremelyabrasivewearandadhesion.Forthegateinserts,core-pin,clampingdiealongthemouthorsub-districtbecauseofitsresistancetowear,
Processingandgrindingmachinesdifficultandcostly
D-2Rc57-59
Highhardness,goodwearresistance,usedtoproduceglassormineralfillingagenthighwearandtearofthegateinsertandthecavityareamorebrittle,grindingandassemblytherearecertaindifficulties
A-8Rc56-58
Excellentabrasionresistancetoadhesionproperties,hightoughness,fortheslider,RISER,obliqueguidepinscanstillwearresistance
A-6Rc56-58
Heatstability,excellenthardnessandhighcompressivestrengthandreputationofagoodgeneral-purposeair-hardeningsteel.ToughnessGeneral
A-2Rc55-57
Heatstability,goodtoughness,wearresistanceingeneral
S-7Rc55-57
Excellentresistancetomechanicalfatigueproperties,excellenthardness/toughness,corrosion-resistant,abrasionpropertiesofadhesioningeneral
O-1Rc56-58
Wasgoodgeneral-purposeoil-hardeningsteel,theadhesionofabrasionresistanceontheperformance.Forsmallembeddedpiecesandcoretoughness,lower-middle
L-6Rc55-57
Goodtoughness,oilhardening,hasagoodheatstability,moderatehardness,wearresistanceunderthemiddle
P-5Rc55-57
Highductility.Usedforcuttinghardenedsteeltosuppressmold,thetypeisverylowcorehardness,durabilityandheatstabilityofthelow-
P-6Rc55-57
Easymachiningandweldingwithlowheatstability,durability,lower-middle-
P-20Rc28-32
Asindustry-standardsteel,toughnessisverygood,easytomachining.Createalargercavityofthegoodmaterialofsteelpartsusingavarietyofactivitiesandintensityofsteelalloys
Manufacturing,inordertopreventwearorabrasionhighadhesion
H-13Rc50-52
Isveryhighhardness,lowtoughness
SS420Rc48-50
Excellentresistancetochemicalagentsoflowhardness,anti-mechanicalfatiguepropertiesofverysmall,lowthermalconductivity
Amco*Metal945 Thermalconductivityofhigh-performance,usedtobeahighdegreeofstabilityofthecoolingcavityorcore-areadurabilityandwearresistance. Amco*Metal940 Amco945withhighthermalconductivitycomparedtothehardness,durabilityispoor 4.thedevelopmentofmold 1).anewgenerationofdieCAD/CAMSoftwareTechnology Atpresent,theUnitedKingdom,theUnitedStates,Germanyandothercountriesandsomeofouruniversitiesandresearchinstitutesdevelopedmoldsoftware,withanewgenerationofdieCAD/CAMsoftwareforintelligent,integrated,moldmanufacturabilityevaluationandsoon. Moldanewgenerationofsoftwareshouldbebuiltfromthemolddesignandpractice,summarizedalargenumberofknowledge.Thisknowledgethroughasystematicandscientificorder,intheformofspecificprojectsisstoredintheKnowledgeBaseandcaneasilybecalledbymold.Intheintelligentsoftwaresupport,CADisnolongerthemoldoftraditionaldesignandcalculationmethodofimitation,butinadvanceddesigntheory,undertheguidanceofexpertsinthisfieldmakefulluseofthewealthofknowledgeandsuccessfulexperiences,thedesignmusthaveareasonableresultandadvanced. Moldanewgenerationofsoftwaretothree-dimensionalthinking,intuitivesensetodesignmoldstructure,thegeneratedthree-dimensionalstructuralinformationcanbeeasilyusedtomoldmanufacturabilityevaluationandnumericalcontrolmachining,whichrequiresthesoftwarediesinthree-dimensionalparametricfeaturemodeling,moldingprocesssimulation,numericalcontrolmachiningprocesss
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