羊角锤闭式精密模锻工艺及模具设计

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(19332),,1,2(1.,200030;2.):,,,,:;;:TG315.2:A:100123814(1999)0420027203FlashlessPrecisionDieForgingTechnologyandDieDesignofClawHammerHONGShen2zhang1;ZENGZhenpeng2(1.SchoolofMaterialsScienceandEngineering,ShanghaiJiaotongUniversity;2.OpenLaboratoryofStateEducationCommissionforHighTemperatureMaterialsandHighTemperatureTest,ShanghaiJiaotongUniversity)Abstract:Thetechnologicalprocessofthenewandtheolddieforgingforclawhammer,theactionprincipleofthemovabledieanditsdiestructure,andtheadvantagesreplacingcommondieforgingwiththeflashlessprecisiondieforg2inghavebeendescribed.Thebasicrequirementofdiedesignwasposed.Theexistingquestionsintheapplicationtoflashlessprecisiondieforgingofthemovablediewerepointed.Keywords:clawhammer;flashlessprecisiondieforgingtechnology;movablediestructure1,,,,,,,,,,(),,70,2,,,,:();2[13],,,,(),(1),(),()12(2),1,,,,,,,,212;22;32;42;52;62;72;82;92;102;112;1227219994©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,,,3[46],,,(),,,,,(),3192;22;32;42;52;62;782;102316000kN16931,67,896421,1269,78,3,,,4678,237,8,1084[4,6,7],,,:(1)(),,(2)(),,0.5kg,0.7kg0.6kg,14.3%(3),,,,70%(4),,,,124,(5),,(6),5,:(1);(2);(3);(4),;(5);(6);(7),;(8)8219994©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),,,(2),,,(),,,,,,,(3),0.050.08mm,,,,7,,,,,,,,,,:[1]..:,1958.[2],..:,1978.[3],..:,1979.[4]..:,1967.[5],..:,1981.[6],.,2.:,1989.[7],.22.:,1990.U71Mn,,(,066004):,ZGMn13U71MnZGMn13,U71Mn,10%D:;:TG457.11:A:100123814(1999)0420029203MicrostructureofWeldingJointofHighMangneseSteelandU71MnSteelwithWeldingMediumHUBai2tao,ZHANGLe2xin,ZHANGFu2cheng(MaterialInstitute,YanshanUniversity)Abstract:ZGMn13steelandU71Mnsteelareweldedwithaweldingmediumusingplasmaarcshardsurfacingandflashbuttwelding.TheresultsindicatethatnocarbidesseperateoutinHAZoftheZGMn13steel,andnomartensiteisfoundinHAZoftheU71Mnsteel.Themicrostructureofthemediumissingleaustenite.Thereisabout10%D2feniteinfusionzone.Keywords:dissimilarsteelwelding;highmangnesesteel1,,,,U71Mn(),:1999205211:(19772),,9219994