... September 22, 2014; published online November 26, 2014. Assoc. Editor: Wei Li. 14 06 2013 22 09 2014 26 11 2014 In addition to electromagnetic attraction between the arcs in Tandem Pulsed gas metal arc welding (GMAW), arc interruptions, mostly in the trailing arc at low mean...

...ZhenZhou Wang; YuMing Zhang; XiaoJi Ma The reflection of projected laser lines may be used to determine the three-dimensional geometry of the reflecting weld pool surface. However, for gas metal arc welding (GMAW), the transfer of the droplets into the weld pool makes the weld pool surface highly...

...H. Guo; J. Hu; H. L. Tsai A three-dimensional mathematical model and numerical techniques were developed for simulating a moving gas metal arc welding process. The model is used to calculate the transient distributions of temperature and velocity in the weld pool and the dynamic shape of the weld...

... Frequency in Pulsed Current Gas Tungsten Arc Welding of Al-Lithium Alloy Steels ,” Mater. Sci. Technol. 0267-0836 , 14 , pp. 61 – 66 . Senthil Kumar , T. , Balasubramanian , V. , and Sanavullah , M. Y. , 2005 , “ Effect of Pulsed Current TIG Welding Parameters on Tensile Properties...

...Hua-Jun Zhang; Guang-Jun Zhang; Chun-Bo Cai; Hong-Ming Gao; Lin Wu Control welding residual stress and distortion is extremely important in manufacturing industry. Double-sided double arc welding (DSDAW), which can control residual stress and angular distortion, is developed. Because arc distance...

...U. Ersoy; E. Kannatey-Asibu; S. J. Hu A lumped parameter dynamical model is developed to describe the metal transfer for gas metal arc welding in the globular mode. The oscillations of molten drop are modeled using a mass-spring-damper system with variable mass and spring coefficient. An analytical...

...Kehai Li; YuMing Zhang Gas metal arc welding (GMAW) is the most widely used process for metal joining because of its high productivity and good quality, but analysis shows that the fundamental characteristic restricts conventional GMAW from further increasing the welding productivity. A novel GMAW...

... on the structural response and the development of an automatic control algorithm for the dynamic thermal tensioning process. A thermomechanical finite element model was used to study preheating effects in a gas metal arc welding process. A model predictive strategy was adopted for automatic distortion control...

...Wei Lu; Y. M. Zhang; John Emmerson Practical welding control systems require durable/compact sensors to sense the welding process and appropriate control algorithms to produce smooth welds. A novel arc welding sensor, referred to as nontransferred plasma charge sensor, which requires no additional...

...Guo Xu; William W. Schultz; Elijah Kannatey-Asibu, Jr. A numerical model is developed to simulate the short-circuiting metal transfer process during gas metal arc welding (GMAW). The energy equation and the Marangoni convection are considered for the first time in analyzing the short-circuiting...

... of weld pool in single-pass arc welding. In order to obtain quality welds, this model will determine the effect of arc length on the formation of weld. Furthermore, the effects of welding parameters on the Gaussian heat source parameters (arc efficiency and heat distribution parameter) are also studied...

... significantly improve welding productivity for such applications by reducing the number of passes. However, its competitiveness in comparison with traditional arc welding is weakened by its high cost, strict fit-up requirement, and difficulty in welding large structures. In this work, a different method...

...Bing Zheng; Radovan Kovacevic Gas metal arc welding (GMAW) of steel in argon-rich shielding usually features free-metal transfer and short-circuiting metal transfer. Projected spray transfer in one droplet per pulse (ODPP) mode in combination with the droplet detachment feedback control is one...

...P. J. Li; Y. M. Zhang This work aims to improve the measurement accuracy of arc length using the arc light at a particular wavelength during gas tungsten arc welding (GTAW) with argon shield. To this end, the effects of welding parameters on spectral distributions were studied. To verify...