Development of sensitivity model for the prediction of bead geometry in underwater flux-cored arc welding
Underwater wet welding is widely applied in offshore engineering. Because the weld bead geometry plays an important role in determining the mechanical properties of a wet welding joint, we have investigated the influences of welding parameters on the weld bead width, penetration and reinforcement in underwater wet flux-cored arc welding (FCAW). A sensitivity model has been developed in this paper to predict the bead geometry and evaluate the influences of welding parameters, such as welding current, voltage, travel speed, contact-tube to workpiece distance (CTWD) and water depth, on bead geometry quantitatively. Orthogonal experiments of underwater wet FCAW are conducted in the hyperbaric chamber at the water depth from 0.1 to 60 meters. The conclusions of this paper can be optimized to provide theoretical guidance for underwater wet FCAW process and provide a guideline to improve the welding quality.
Underwater welding Bead geometry Sensitivity analysis FCAW
Shi Yonghua Zheng Zepei Huang Jin
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
国际会议
济南
英文
1-10
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）