TY  - JOUR
A1  - Eichler, Fabian
A1  - Balc, Nicolae
A1  - Bremen, Sebastian
A1  - Nink, Philipp
T1  - Investigation of laser powder bed fusion parameters with respect to their influence on the thermal conductivity of 316L samples
JF  - Journal of Manufacturing and Materials Processing
N2  - The thermal conductivity of components manufactured using Laser Powder Bed Fusion (LPBF), also called Selective Laser Melting (SLM), plays an important role in their processing. Not only does a reduced thermal conductivity cause residual stresses during the process, but it also makes subsequent processes such as the welding of LPBF components more difficult. This article uses 316L stainless steel samples to investigate whether and to what extent the thermal conductivity of specimens can be influenced by different LPBF parameters. To this end, samples are set up using different parameters, orientations, and powder conditions and measured by a heat flow meter using stationary analysis. The heat flow meter set-up used in this study achieves good reproducibility and high measurement accuracy, so that comparative measurements between the various LPBF influencing factors to be tested are possible. In summary, the series of measurements show that the residual porosity of the components has the greatest influence on conductivity. The degradation of the powder due to increased recycling also appears to be detectable. The build-up direction shows no detectable effect in the measurement series.
KW  - Additive manufacturing
KW  - LPBF
KW  - SLM
KW  - Thermal conductivity
KW  - 316L
Y1  - 2024
U6  - https://doi.org/10.3390/jmmp8040166
SN  - 2504-4494
N1  - Corresponding author: Fabian Eichler
VL  - 8
IS  - 4
PB  - MDPI
CY  - Basel
ER  -