Abstract
Laser powder bed fusion (LPBF) enables tool makers to design tools with complex geometries and internal features. To exploit the possibilities provided by LPBF it is necessary to understand how the processing parameters influences the properties of the end-product. This study investigates the effect of laser scan speed on relative density and tensile properties of 18Ni300 in the as-built condition. The results show that there is a relatively wide processing window which gives satisfactory relative density and tensile properties. Furthermore, it was shown that the scan speed which produced the highest relative density in this study did not provide satisfactory tensile properties, indicating that processing parameters can not be established based on relative density measurements alone.
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Acknowledgements
The authors would like to thank SINTEF Industry, Oslo, Norway for performing the relative density analysis. This work is funded in part by the Norwegian Research Council through grant number 248243, and by the TROJAM project in the INTERREG A/ENI program.
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Hovig, E.W., Sørby, K. (2020). Influence of Laser Scan Speed on the Relative Density and Tensile Properties of 18Ni Maraging Steel Grade 300. In: Wang, Y., Martinsen, K., Yu, T., Wang, K. (eds) Advanced Manufacturing and Automation IX. IWAMA 2019. Lecture Notes in Electrical Engineering, vol 634. Springer, Singapore. https://doi.org/10.1007/978-981-15-2341-0_58
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DOI: https://doi.org/10.1007/978-981-15-2341-0_58
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