不同状态下AZ31镁合金板材V形弯曲性能研究  

V-bending properties of AZ31 Mg alloy sheets in different conditions

作　　者：李欣[1] 肖峰[1] 权高峰[2] 杨豆豆 

机构地区：[1]四川工程职业技术学院,四川德阳618000 [2]西南交通大学材料科学与工程学院,四川成都610031

出　　处：《兵器材料科学与工程》2015年第3期109-111,共3页Ordnance Material Science and Engineering

摘　　要：采用具有不同弯曲半径的V形槽弯曲模具对不同状态、不同厚度的AZ31镁合金板材进行系列弯曲试验,测算AZ31镁合金弯曲回弹量,分析板厚和相对弯曲半径对回弹的影响。研究表明:在凸模弯曲半径r不变时,板带厚度越大,回弹角越小;在板厚一定时,相对弯曲半径r/t越大,回弹角越大;厚度较小板带的回弹角变化幅度受弯曲半径的影响比厚度较大板带的更大;热处理态板材的弯曲成形性能优于冷轧态板材。A series tests were carried out on AZ31 Mg alloy sheets in different thickness and different conditions,using V-bending die with different bending radius. The bending springback was calculated. The influence of thickness and relative bending radius on springback was analyzed. The results show that when the bending radius is unchanged,the thicker the sheet,the smaller the springback;when the sheets thickness is unchanged,the greater the relative bending radius,the greater the springback. The sheets with smaller thickness are influenced more than that with greater thickness by bending radius. Bending performance of heat-treated sheets is better than that of the cold-rolled sheets of AZ31 Mg alloy.

关 键 词：AZ31镁合金 V形弯曲 回弹 板厚 相对弯曲半径 

分 类 号：TG146.2[一般工业技术—材料科学与工程]