Humping -
Factors like the recoil pressure of the laser and fast solidification rates can trap these liquid accumulations before they can level out, resulting in the permanent wavy structure. Suppression and Control
Researchers have developed several features and strategies to prevent or manage humping: humping
When melt velocity significantly exceeds the welding speed, the weld groove cannot be filled instantly. This causes the melt stream to deflect upwards, initiating a hump. Factors like the recoil pressure of the laser
In the context of industrial manufacturing, is a specific surface defect where periodic, bead-like protuberances (humps) form along a weld seam or a 3D-printed track. This occurs when high-speed processes, such as laser powder bed fusion or arc welding, exceed certain velocity and power thresholds. How Humping Develops In the context of industrial manufacturing, is a
Humping is primarily driven by fluid dynamics and thermal instabilities within the molten pool:
Often explained by the Rayleigh instability model , the elongated melt pool behaves like an unstable cylindrical fluid jet, where surface tension causes it to collapse into individual droplets or "humps".