Ductility improvement methods for commercial AZ31B magnesium alloy in cold forging

作     者：Ryo MATSUMOTO 

作者机构：Division of Mechanical EngineeringGraduate School of Engineering ScienceOsaka University1-3 MachikaneyamaToyonakaOsaka 560-8531Japan 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2010年第20卷第7期

页      面：1275-1281页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：supported in part by the Japan Ministry of Education Culture Sports Science and Technology with Grant-in-Aid for Young Scientists(B) 

主　　题：magnesium alloy forging forgeability heat treatment counter force finite element simulation 

摘      要：In order to realize cold forging of magnesium alloys in practical application,some methods for ductility improvement of a commercial wrought AZ31B magnesium alloy(Mg-3%Al-1%Zn,mass fraction) at room temperature were *** effects of heat treatment before forging and hydrostatic pressure during forging on the ductility were investigated in cold upsetting and cup ***-temperature annealing was effective to reduce the degree of the texture anisotropy of the specimen,and it was found that the forging limit of the annealed specimen was improved in cold *** the other hand,cold cup forging of the annealed specimen was carried out with applying counter *** applying counter pressures of 100-200 MPa during forging,the critical punch stroke for forging limit of the specimen without crack was improved by 25%in punch stroke.