Table of ContentsToggleQuick Answer: What Causes Wormhole Defects in FSW?What Is a Wormhole Defect in Friction Stir Welding?How FSW Wormholes FormWormhole Defects vs. Other FSW DefectsMain Causes of Wormhole Defects in FSWInsufficient Heat InputPoor Material Flow Around the ToolIncorrect Tool Penetr
Choosing the right friction stir welding parameters for aluminum is essential for controlling heat input, material flow, penetration, and weld strength. Among the most important FSW parameters are tool rotation speed, travel speed, and axial force, but the optimal settings vary with aluminum alloy,
FSW has inherent advantages in the lightweighting of rail transit vehicles, particularly in vehicle structures such as body panels, roofs, and floors. It reduces the use of rivets, lowers weight, and enhances structural strength and fatigue performance, meeting the stringent weight and strength requ
