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1 Introduction Thesurfacetexturesteelsheetshavebeenextensivelyusedinautomobileindustryfortheirgoodformabilityandpaintingperformance.Asknown,thereexistesfrictionbetweenthesheetandmodelduringstamping.Whenthesheetisdeformedintoaworkpiece,theprocessofsheet… 相似文献
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1 Introduction Lowcarbonsteelandlowcarbon,lowalloysteelsuchasAISI1008andGB08Alsteelswereusedasdampinganddrawingmaterialsfortheirsuperiorductility.However,thelimitedstrengthofthesesteelsrestrictedtheirfurtherapplicationsinheavyloadconditions.Someeffortswer… 相似文献
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1 Introduction 4Cr5MoSiV1steel (AISIH13or 84 0 7)isoneofthemostpopularhotworkingdiesteels .Asamajoralu minumcastingdiematerial,ithastoendurethermalandmechanicalimpactofmoltenaluminumatelevatedtemperature ,whichresultsinfailures ,suchas ,heatchecking ,corrosionors… 相似文献
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