Laser Powder Bed Fusion Process and Structure Data Set for Process Model Validations

Abstract

This work reports the measurement of laser powder bed fusion (PBF) process input signals, output signals, and structural data for a set of eight IN 718 samples. Data from multiple samples imparts statistical replicability to the measurements. The input signals are the real-time PBF laser position commands, power commands, and the beam radius set point. The output signals are thermographic videos from coaxial and off-axis infrared cameras, and temperature measurements from thermocouples embedded in the samples. The structural data are optical micrographs of all built surfaces. Data are collected for three testing regimes: First, the laser rasters over the samples under conditions that do not induce melting. Second, the laser rasters over the samples with conditions that induce melting. Lastly, five layers of IN 718 are built atop the samples. The main result is an open and comprehensive data set, comprising both raw and processed signal data, for validating PBF process and structure models.