In Powder Bed Fusion (PBF), specifically Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM), the laser scan speed ( , measured in mm/s) is a cornerstone process parameter.
In Powder Bed Fusion (PBF), specifically Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM), the laser scan speed (, measured in mm/s) is a cornerstone process parameter. It dictates the rate at which the concentrated thermal energy source traverses the powder bed. The scan speed directly controls the interaction time between the laser beam and the material, thereby defining the thermodynamics of the melt pool, solidification kinetics, and the resulting microstructural evolution.
When the laser beam irradiates the metal powder, it creates a localized molten zone known as the melt pool. The geometry, stability, and temperature distribution of this melt pool are governed by the balance of heat input (from the laser) and heat dissipation (via conduction through the solidified part and surrounding powder, radiation, and convection).
EOSPRINT utilizes advanced exposure strategies to distribute thermal energy across the layer, minimizing localized heat accumulation and residual stresses. The execution of these strategies relies on the precise coordination of the laser and the galvo scanning mirrors.
| Category | EOSPRINT |
|---|---|
| Library | CAM library |
Engineer, author of The Big Book of 3D Printing and additive manufacturing expert