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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Puukko, Pasi
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Topics
Publications (10/10 displayed)
- 2020On the effect of shielding gas flow on porosity and melt pool geometry in laser powder bed fusion additive manufacturingcitations
- 2019Selective laser melting raw material commoditization : impact on comparative competitiveness of additive manufacturingcitations
- 2018The Effect of L-PBF Process Parameters on Surface Quality and Mechanical Properties of H13 Hot Work Tool Steel
- 2018Design and Verification of a Wireless Readout System for Integrated Motor Axle Condition Monitoringcitations
- 2018Industrialization of hybrid and additive manufacturing - Implementation to Finnish industry (HYBRAM)
- 2017Feasibility of selective laser melting process in manufacturing of digital spare parts
- 2017Circular Economy Concept In Additive Manufacturing
- 2016Component scale process model for metal additive manufacturing
- 2015Additive manufacturing of spare part supported by digital design concept
- 2010Model analysis of a multilayer curtain coating
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document
The Effect of L-PBF Process Parameters on Surface Quality and Mechanical Properties of H13 Hot Work Tool Steel
Abstract
Metal parts produced by Additive Manufacturing (AM) technologies typically suffer from poor surface quality, i.e. high surface roughness and porosity. Improving the surface quality could enable the manufacturing of components with little to no surface machining. In this research, we studied the effect of Laser Powder Bed Fusion (L-PBF) process parameters on the porosity and mechanical properties of H13 hot work tool steel. Optimized values for the core and border contour parameters were determined with a Design of Experiments approach using varying scanning speed, laser power and hatch distance parameters. The optimized process parameters were used to print samples for characterization. The experiments included microscopy analyses, surface roughness measurements and tensile testing. For comparison, some of the tensile specimens were machined to eliminate the effect of possible surface defects on the mechanical properties. The results suggest that a significant improvement in mechanical properties is achievable with optimized parameters.