Burn through is the main problem of longitudinalseamwelding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
小直径超薄壁管纵缝焊接的主要问题是烧穿，解决这个问题的关键是严格控制焊接接头的装配质量及焊接工艺。
2
The impacts of transverse and longitudinal shrinkage of weldingseam on underframe positioning.
以及焊缝横向、纵向收缩对底架定位的影响。
3
According to elastic theory, this paper gives quantitative answers of stresses and deformations caused by the lateral contraction of longitudinalweldingseam on the thin wall's cylinder.