𝗟𝗮𝘀𝗲𝗿 𝗯𝗲𝗮𝗺 𝘀𝗵𝗮𝗽𝗶𝗻𝗴 𝗶𝘀 𝗿𝗲𝗱𝗲𝗳𝗶𝗻𝗶𝗻𝗴 𝗵𝗼𝘄 𝗺𝗲𝗹𝘁 𝗽𝗼𝗼𝗹 𝗱𝘆𝗻𝗮𝗺𝗶𝗰𝘀 𝗮𝗿𝗲 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗱 𝗶𝗻 𝗟𝗣𝗕𝗙

There has been growing momentum around laser beam shaping in LPBF, as it introduces new possibilities for controlling melt pool behavior beyond conventional tuning of laser power and scan speed.

Traditional Gaussian beams concentrate energy at the center, often resulting in steep thermal gradients, strong recoil pressure, and a narrow process window—conditions that can promote keyholing and spatter.

By spatially redistributing energy using top-hat, ring, multi-spot, or dynamically shaped beams, recent studies demonstrate improved melt pool stability, reduced peak temperatures, and more uniform heat distribution. These effects directly influence Marangoni flow, keyhole stability, porosity formation, microstructure evolution, and residual stress.

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While the benefits remain material-dependent and introduce added optical complexity, beam shaping marks a clear transition in LPBF from parameter tuning to intentional energy distribution engineering, especially as systems move toward higher power and productivity.

In this context, AM PravaH® plays a critical role by combining high-fidelity multiphysics simulations with customizable laser beam profiles. This enables systematic evaluation of beam–melt pool interactions and provides actionable insights for achieving robust process windows and improved part quality.