摘要
针对现有弯头制造中存在的问题 ,提出了用环壳液压胀形工艺制造弯头的方法 ,分析了环壳的应力特点 ,并给出了其最后的成形压力 .通过实验研究了环壳胀形过程中位移、应变的变化规律及成形后壳体的几何尺寸 ,并对其成形过程中的起皱进行了分析 .研究表明用液压液压胀形工艺制作弯头是可行的 .
A new hydroforming process for manufacturing elbow pipes was proposed to overcome difficulties in manufacturing large elbow pipes with conventional technologies. The stresses in a toroidal shell are analyzed and the final hydroforming pressure is given. The displacement, strain distribution, wrinkling and cross section profile variation of the toroidal shell during hydroforming process are discussed. The dimensions of the formed toroidal shell are measured. It is shown experimentally that manufacturing of elbow pipes with integrally hydroforming process is feasible.
出处
《材料科学与工艺》
EI
CAS
CSCD
1999年第S1期48-51,共4页
Materials Science and Technology
基金
国家自然科学基金!资助项目 (599750 2 2 )
关键词
液压胀形
弯头
环壳
hydroforming
elbow pipe
toroidal shell
