期刊
MATERIALS AND MANUFACTURING PROCESSES
卷 29, 期 8, 页码 996-1003出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10426914.2014.901527
关键词
GMAW; GTAW; Shielding gas mixtures; Weld parameter
Gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) are extensively used in the areas requiring high-speed welds, higher weld quality finishes, and superior strength properties. In this experimental study, the influence of shielding gas composition on the mechanical properties of austenitic stainless steel 316L was investigated. The selection of shielding gases and current intensities is the major concern to achieve the intended properties of the weld metal. The influence of four various shielding gas compositions was studied in this work. It was carried out in both GMAW and GTAW for 3 and 6mm thick plates. Optimization of shielding gas mixtures, current intensities, flow rates, and welding speed is required to automate the process and to improve the overall efficiency of the weld process. Mechanical properties are analyzed for GTAW and GMAW specimens. The obtained results prove that the tensile strength, hardness, and impact strength are higher for GTAW weld specimens compared to GMAW weld specimens. Further by decreasing the percentage of CO2, the tensile strength and hardness values give the superior results.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据