摘要
讨论了激光技术和激光焊接及激光-MAG复合焊接技术及其在造船业中的最新进展,简要对比了筋板结构的激光焊接和激光-MAG复合焊接的特点,并介绍了英国焊接研究所(TWI)在造船业采用激光焊接技术的研究进展。所有的工作经验表明,使用光纤传输的Nd:YAG激光在造船业筋板结构焊接中有巨大的应用前景。相对于自熔激光焊接而言,激光-MAG复合焊接制造带筋钢结构有几个方面的优点:焊缝成形好,焊接生产率高,装配间隙的容许误差较大。在焊接过程中,监测传感器有助于检测诱发焊接缺陷产生的各种因素。
The recent development in laser technologies and applications of laser welding and hybrid laser-MAG welding in shipbuilding are discussed.The characteristics of laser welding and hybrid laser-MAG welding for welding stiffened structures were briefly compared.Research and development work carried out for ship building applications at TWI was briefly introduced.These work demonstrated that the fibre delivered Nd:YAG lasers have great potential for welding stiffened structures for shipbuilding industry.Hybrid laser-MAG welding has advantages over autogenous laser welding for welding stiffened steel structures in terms of the preferred weld profile,high productivity and great tolerance to gaps.In process monitoring sensors could help to detect factors inducing weld imperfections during welding.
出处
《焊接》
北大核心
2007年第5期31-38,共8页
Welding & Joining
关键词
船用钢结构
激光-MAG复合焊接
筋板
steel structures for shipbuilding,hybrd laser-MAG welding,stiffened panel
