摘要
从不锈钢焊管整体性能角度出发,提出使用管液压胀形试验来评价焊缝质量对管件液压成形的影响。利用激光照射焊缝部位来改变焊缝材料性能,以获得不同状态的焊管。结合有限元和试验,分析了不同焊缝状态下焊管液压胀形的具体表现,提出了评价焊缝质量的依据。整个过程操作简单,结果直观可靠,为判定焊管焊缝成形性能的优劣提供了很好的试验手段和判定依据。
From the point of the whole performance, tube hydraulic bulging test was used to estimate the weld line performance of the stainless steel in tube hydroforming. With the help of laser, different states of the weld line was achieved and analyzed. Then, a standard of estimating the weld line was constructed based on FEM and test. Using tube hydraulic bulging test to test the weld line is simple and strong that it is a good guide to produce the welding stainless steel of good quality.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2008年第9期1115-1118,共4页
China Mechanical Engineering
基金
江苏省自然科学基金资助项目(BK2002096)
关键词
管液压成形
不锈钢焊管
焊缝
材料硬化指数
tube hydroforming
welding stainless steel tube
weld line
material hardening exponent
