Ti/Al双金属三通管件冷成形及热处理工艺  

Cold de formation and heat treatment process of Ti/Al bimetallic tee pipe fitting

作　　者：张立伍[1] 陶杰[1] 郭训忠[1] 李鸣[2] 孙显俊[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016 [2]江苏华阳金属管件有限公司,江苏镇江212400

出　　处：《金属热处理》2010年第8期65-69,共5页Heat Treatment of Metals

基　　金：江苏省重大成果转化专项基金(BA2006067)资助

摘　　要：采用多道次液压胀形工艺制备了Ti/Al双金属三通管件。研究了内压力对Ti/Al双金属三通管件胀形性能的影响,建立了双金属三通管件液压胀形的内压力公式,对双金属管液压胀形有很好的指导作用。研究了Ti/Al双金属管爆炸焊接后和三通管件胀形过程中的热处理工艺,并制定相应的热处理工艺。检测了Ti/Al双金属三通管件的支管高度、壁厚分布以及界面结合情况。经过三次胀形成形,成功制备了内外层壁厚分布均匀,支管高度合格,高质量的Ti/Al双金属T型三通管件。Multi-hydroforming process was adopted in preparing Ti/Al bimetallic tee pipe fitting.The effect of inner pressure on the forming performance was studied,and a internal pressure formula was created for bimetallic tee pipe fitting hydroforming.The experimental tests prove that the formula have a good guide action on practise hydroforming of bimetallic tee pipe fitting.Furthermore,the heat treatment process of explosive welded Ti/Al bimetallic pipe and tee pipe fitting were investigated,and the corresponding heat treatment process was put forward.Finally,the height of branch pipe,thickness distribution,and interfacial bonding of Ti/Al bimetallic tee pipe fitting were inspected.The results show that a highly qualified Ti/Al bimetallic tee pipe fitting with uniform thickness profile in both inside and outside layer and a qualified branch were obtained through three-step hydroforming process.

关 键 词：Ti/Al双金属管 三通管件 液压胀形 热处理 

分 类 号：TG162.79[金属学及工艺—热处理]