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1、VolumeprecisionformingmolddesignandmanufacturinganddevelopmentAuxiliaryprocessingtechnologyIntheproductionprocess,improvedielifeisacomplexcomprehensiveissues.Allforgingprocess,especiallythenetshapeandapproximatenetformprocessingtechnologyMuchdependsontheaccuracyandquality,dependin
2、gonthetechnologylevelofmould.Mouldtechnologyreflectedinmouldingdesignandmanufacturing,Anddielifewiththeabovetwolinksintheoutside,stillandusethelink.Improvedielifeisofgreateconomicbenefits,generallyinthetrialproductionmoldtoolingcostaccountingforstageproductioncostofabout25%,andfin
3、alizethedesignproductionisonly10%.Dieearlyfailureforms,manyforthepunchanddieoffractureboreedgecollapse,flashinthebridgechap,cavityoccurredcrackatthebottom.Manyfactorsinfluencethelifeofdieawiderangeanddiedesignthelifeofdieisbased.Diedesignlinkisreferstothemouldstructureplan,setForm
4、ingdesignanddeterminethecavityofthesteel,mouldhardnessetc.Mouldmanufacturingprocessistopointtodiemakingtechnology,heattreatmentstandardandsurfacetreatmenttechnology,etc.Inthispaper,onlyfromthemolddesignanddiemanufacturingtwoaspectstostudyandimprovethelifeofdiemeasures.1,thereasona
5、bledesignprecisionvolumeforminga(fineforging)Dieforgingsshouldtrytoavoidwithholes,narrowslot,Angle,shapeshouldasfaraspossibleissymmetrical,eveniftheycan'tdoaxisymmetric,alsohopetoachieve,Undersymmetricalorleft,rightsymmetry.Todesignmoldpullingoutrake,avoidstressconcentrationanddie
6、forgingunits,increasingthepressureovercomeeccentricloadingandmouldwearnotequaldefect.ForforgingdiecavityedgeandbottomfilletradiusR,designshouldensureforgingscavityiseasilyfilledwiththepremiseofamplification.Ifthefilletradiusistoosmall,easilycavityedgeinhightemperatureandhighpressu
7、reofcollapse,theseriouswillformthereversedcone,influencedieforgingsthemold.SuchasthebottomfilletradiusRistoosmallandisnotsmoothtransition,it'seasytocrackandwillcontinuetoexpand.WhenthemoulddesignshouldmakefulluseofCADsystemforproductsfunction2dand3ddesign,toensurethattheproductsto
8、theunityoftheoriginalinformationa
