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1、冷冲模常用材料(Commonmaterialforcolddie)ThecommonlyusedmaterialsofcoldstampingdieThemoldisthemotheroftheindustry"、themoldperformance,lifelevel,directlyaffectthequalityofproductsandeconomicbenefits.Themoldmaterialsandheattreatment,surfacetreatmentisthemainfactoraffectingthelifeofvariousfactorsinthemold・
2、Atpresent,countriesintheworldareconstantlydevelopingnewmaterialmould,improvementofheattreatmentprocessandsurfacestrengtheningtechnology.Chins'smoldindustryhasbeentherapiddevelopmentoftherapidgrowth,theprimaryproblemofmoldmanufacturingmoldmaterials・Therearealotofmoldmanufacturingandparts,material
3、ssuchassteel,castiron,ironalloyandnonalloy,hightemperaturealloy,hardalloy,organicpolymermaterials,inorganicnon-metallicmaterials,naturalorartificialdiamond.Butthesteelisthemostusedandmostwidelyusedmaterials・FailureanalysisofcomponentsAnypartshaveacertaindesignfunctionandlife・Wheninuse,andlosethe
4、functionoftheoriginaldesignduetoexternalshapeandinternalstructureofpartschange,theinefficientworkornotworkorearlyretirementphenomenon.Accordingtotheworkingconditionsandfailurecharacteristicscanbedividedinto:excessivedeformation,fractureanddegradationofsurfacedamageandphysicalproperties・Themainfa
5、ilurepartsincludingdesign,materials,process!nganduseofthefouraspects,however,workfailuremaybesingle,theremaybearesultofmanyfactors,buteacheventshouldhaveafailureleadstothemaincauseofthefailure,whichprovidedthemainmeasurestopreventfailure・Infailureanalysis,wecanmakethefollowing1basicsteps:investi
6、gation,analysisof2and3fractureanalysis,microstructureandpropertiesofthe4componentsoftestingandanalysis,5comprehensiveanalysisandconclusion.Two,theprincipleofmaterialTheselectionofmaterialsisoftenacomplicatedanddifficultprocessofjudgment,optimization.Thereisnodoubtthattheselectedmaterialshouldmee
7、ttheneedsoftheuseofproducts,durable,easyprocessing,higheconomicbenefit・Andthegeneralmaterialshouldfollowthreebasicprinciples:theuseofperformance,processperformanceandeconomicperformance,whichisadialecticalunity・Inmostcases,t
