轴承盖落料、拉深、冲孔复合模设计.zip

文档介绍：MaterialsScienceandEngineeringA445–446(2007)1–,∗,,,,CentralSouthUniversity,Changsha410083,PRChinabSchoolofMaterialsScienceandEngineering,ShanghaiJiaoTongUniversity,Shanghai200030,PRChinaReceived26July2005;receivedinrevisedform29March2006;accepted12April2006AbstractTheeffectofneodium(Nd)andyttrium(Y)(I)heas-,,veryfinergrainswithsizeof4–8␮,,,theelongationofbothZK60andthealloywithNdarehigherthanthatofthealloywithNdandY.©:ZK60alloy;Neodium;Yttrium;Extrusion;