Welding Thick Steel Plates with Fibre Lasers and GMAW
Welding Thick Steel Plates with Fibre Lasers and GMAW
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DOI：
10.1007/bf03263489
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发表时间：
2010-03
影响因子：
2.1
通讯作者：
F. Vollertsen;S. Grünenwald;M. Rethmeier;A. Gumenyuk;U. Reisgen;S. Olschok
中科院分区：
文献类型：
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作者：
F. Vollertsen;S. Grünenwald;M. Rethmeier;A. Gumenyuk;U. Reisgen;S. Olschok
介绍了一项关于高厚度碳钢激光焊接性的合作研究项目的结果。这包括16 mm和20 mm厚板的单道和多道焊接，以及可接受公差的调查，即间隙可桥接性和边缘错位。在焊接实验中，使用了8kW、20kW激光功率的光纤激光器和不同的GMAW工艺。使用20kW光纤激光器，16 mm厚的板材可以单道焊接，20 mm需要进行接缝准备或材料预热。对于8kW激光功率的多道焊，采用了宽根面(Y形坡口)的单一V形对接接头的焊接准备。根部焊道始终采用混合工艺，填充焊道采用混合工艺以及产生最佳效果的GMAW工艺。
The results of a collaborative research project on laser beam weldability of carbon steels of high sheet thickness are presented. That includes single and multiple pass welding of 16 mm and 20 mm thick plates, as well as the investigation of acceptable tolerances i.e. gap bridgeability and edge misalignment. For the welding experiments fibre lasers with 8 kW, 20 kW laser power and different GMAW-techniques were used in various applications. With the 20 kW fibre laser 16 mm plates could be welded with a single pass, 20 mm required a seam preparation or alternatively preheating of the material. For multi pass welding with 8 kW laser power a joint preparation with a single V-butt joint with a broad root face (Y-groove) was applied. The root pass was always welded with a hybrid process, the filler passes with a hybrid process as well as a GMAW process which produced the best results.