模具型面及冲头对304不锈钢三通成形效果影响研究  

Influence of Die Surface and Punch Style on Forming Effects of SS304 T-shapes by Hydroforming

作　　者：郭训忠[1] 陶杰[1] 李鸣[2] 

机构地区：[1]南京航空航天大学,南京210016 [2]江苏华阳金属管件有限公司,镇江212400

出　　处：《中国机械工程》2010年第15期1875-1878,1889,共5页China Mechanical Engineering

基　　金：江苏省重大成果转化专项基金资助项目(BA2006067);江苏省博士生创新基金资助项目(CX09B-077Z)

摘　　要：利用数值模拟研究了不同形式模具型面及冲头对采用液压胀形工艺制备的三通管件成形质量的影响,并研究了不同成形压力加载路径对应的成形效果。根据数值模拟结果,采用新型润滑涂层及相应的成形装置进行了管件冷成形实验。在支管高度、壁厚减薄率分布方面,管件实验结果与模拟结果非常一致。研究结果表明,采用较优的模具型面及冲头可以有效提高三通管件的成形质量。The effects of die surface and punch on the forming quality of T-shapes by hydroforming were investigated by means of the numerical simulation. The forming effects of different loading paths in the process were investigated. Subsequently, a practical hydroforming was performed based on the simulation results with the aid of special lubrication coatings. It is obviously indicated that the simulation results agree well with the experimental ones in protrusion height and wall thickness distribution. The results show that the better die face and the punch can improve the quality of T-shapes effectively.

关 键 词：304不锈钢 三通管件 液压胀形 数值模拟 

分 类 号：TG386.43[金属学及工艺—金属压力加工]