Nov 16, 2023 · We propose a trajectory optimization-based layer-to-layer controller that adjusts the laser power input to the next layer to track a desired melt pool depth.
Detailed numerical case studies demonstrate successful regulation of the melt pool depth on brick and overhang geometries and provide first of its kind results ...
Oct 6, 2024 · In this work, we investigate closed-loop control of the melt pool dimensions in a 2-D laser powder bed fusion (LPBF) process.
Model-based feedforward control of laser powder bed fusion additive manufacturing · A Layer-to-layer Control-Oriented Model for Selective Laser Melting · On-line ...
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This paper detailed a method and algorithm for controlling laser power in an LPBF process based on locally varying relative proportion of solid or powder ...
This work identifies sources of error in melt pool characterization tests that are frequently employed to study processing parameters in laser powder bed ...
The coaxial melt pool (CMP) imaging follows the laser movement. The melt pool is imaged at a rate of 10 000 frames per second with a pixel pitch of 8 μm.
Powder Bed Fusion (PBF) is a powder-bed additive manufacturing technique where a laser beam or an electron beam fuses metal powder layer by layer from a sliced ...
Sep 8, 2023 · This paper uses a Short-Wave Infrared (SWIR) camera to record the temperature history for parts manufactured with Laser Powder Bed Fusion (LPBF) ...
Aug 20, 2023 · Cameras used in in-situ melt pool monitoring can produce thousands of melt pool images in just a single layer of a LPBF part; the large human ...