三丝CO2双边角焊全因子试验设计

影响三丝高速CO2双边角焊焊缝成形参数的因素众多,在试验中应集中在影响较大的焊接参数研究.文中以影响其主要的两个焊接参数,即焊接功率和焊接速度为研究对象,建立两因素三水平的全因子工艺试验设计,分析焊接参数对焊缝成形参数的影响.结果表明,下脚长、上脚长和焊缝凸度均受焊接功率和焊接速度的主效应影响,而与交叉效应无关.上脚长的预测范围大约为4mm,下脚长的预测范围大约为2.5mm,而焊缝凸度的预测范围大约为2.5 mm.

Full factorial design on triple-electrode high speed CO2 fillet welding on double sides

Multi-parameters have impact on the weld geometry during triple-electrode high speed CO₂ welding. All the parameters cannot be considered at one time. Therefore,the main parameters should be studied during the welding process. In this paper,two kinds of factors such as welding power and welding speed of three levels were studied to predict the weld geometry parameters by statistical method. The results show that the horizontal leg length,vertical leg length and the convexity degree are affected by the main effect. The predicted value of vertical leg length is 4 mm,the horizontal leg length is 2.5 mm, and the convexity degree is 2.5 mm.