摘要
采用10 kW光纤激光器对厚度10 mm的AH36船用钢进行了激光电弧复合焊试验研究,并与同材料的MAG焊进行对比,分别从焊缝成型、焊缝截面形貌、焊接接头力学性能、样件焊接变形、效率以及成本等多方面进行分析。试验结果表明:选择适当的送丝速度,MAG焊及激光电弧复合焊可分别得到具有良好焊缝成型及截面形貌的焊缝,焊缝强度均大于母材强度。对于同等板厚同等长度的焊缝,激光电弧复合焊的变形量仅为MAG焊的50%左右。复合焊的焊接效率优势更明显,可达到MAG焊效率的5倍。复合焊的焊材成本仅为MAG焊的21%,气体成本约为MAG焊的42%,设备成本在同等效率下的差距较小。从长远的使用前景来看,激光电弧复合焊的优势远远大于MAG焊。
A 10 kW fiber laser was used to conduct the experimental study on laser-arc hybrid welding with 10 mm AH36 marine steel in this paper. Which was also compared with MAG welding on the same material, and was analyzed from aspects of weld molding, weld section morphology, welded joint mechanical properties, welding deformation, efficiency and cost. The results show that MAG welding and laser-arc hybrid welding both can acquire good weld molding and cross-section morphology by selecting the appropriate wire feeding speed, and the weld strength is also greater than the base material. The deformation of laser-arc hybrid welding is only about 50% of MAG on the same thickness and length welds.The welding efficiency advantage of laser-arc hybrid welding is more obvious, which can be 5 times as much as MAG welding. The welding material cost of hybrid welding is only 21% of MAG welding, gas cost is about 42% of MAG welding, the difference of equipment cost is becoming smaller with the same efficiency. In the long run, the advantage of laser-arc hybrid welding is much greater than MAG welding.
作者
周丹
郭计山
喻亮
祁小勇
熊大辉
叶兵
Zhou Dan;Guo Jishan;Yu Liang;Qi Xiaoyong;Xiong Dahui;Ye Bing(Hubei Key Lab of Laser Advanced Manufacture Technology,Wuhan Huagong Laser Engineering Co.,Ltd.,Wuhan,Hubei 430223,China;State Key Laboratory of Roll Composite Materials Xingtai City,Sinosteel Xingtai Machinery&Mill Roll Co.,Ltd.,Xingtai,Hebei 054025,China)
出处
《应用激光》
CSCD
北大核心
2021年第1期99-106,共8页
Applied Laser
基金
国家重点研发计划增材制造与激光制造专项(2018YFB1107305)。
关键词
激光电弧复合焊
MAG焊
送丝速度
船用钢
效率
成本
laser-arc hybrid welding
MAG welding
wire feeding speed
marine steel
efficiency
cost