SYNTHESIS AND UTILIZATION OF POLY (METHYLMETHACRYLATE) NANOCOMPOSITES BASED ON MODIFIED MONTMORILLONITE




Effects of Welding Speed and Pulse Frequency on Surface Depression in Variable Polarity Gas Tungsten Arc Welding of Aluminum Alloy

A three-dimensional (3D) numerical model with the volume of fluid method is developed for high-speed variable polarity gas Sectional Sofas tungsten arc welding (VP-GTAW) of aluminum alloys.It predicts the thermal flow field in the weld pool, the weld pool surface deformation, and solidified bead geometry during VP-GTAW in successive welding passes.

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