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Manufacture of designed porosities using pulsed laser powder bed fusion

Research output: Contribution to conference › Paper › Research › peer-review

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Abstract

Laser powder bed fusion is used to build products for medical, aerospace, and automotive industries due to the capability of this process in manufacturing complex geometries. An experimental study is carried out to characterize micro-lattices manufactured using a modulated pulsed wave (PW) laser as opposed to conventional laser powder bed fusion processes that use a continuous wave (CW) laser. PW promises smaller grains (as compared to CW) in the microstructure of parts, improved strength, and a more uniform melt pool with higher control of energy deposition which provides improved feature accuracy as well as surface topography. Lattice structures are particularly advantageous for lightweight components by designing void spaces. Micro-features can be efficiently characterized under a microscope but at the expense of a component. The designed porosities are characterized by using X-ray computed tomography and validated.
Original languageEnglish
Publication date2023
Number of pages4
Publication statusPublished - 2023
EventJoint Special Interest Group meeting between euspen and ASPE
Advancing Precision in Additive Manufacturing
- KU Leuven, Leuven, Belgium
Duration: 19 Sept 2023 → 21 Sept 2023

Conference

ConferenceJoint Special Interest Group meeting between euspen and ASPE
Advancing Precision in Additive Manufacturing
LocationKU Leuven
Country/TerritoryBelgium
CityLeuven
Period19/09/2023 → 21/09/2023

Keywords

  • Laser powder bed fusion
  • metal additive manufacturing
  • Lattice structures
  • X-ray computed tomography
  • Pulsed laser

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