Towards material and process agnostic features for the classification of pore types in metal additive manufacturing

Autor: Mathieu Vandecasteele, Rob Heylen, Domenico Iuso, Aditi Thanki, Wilfried Philips, Ann Witvrouw, Dries Verhees, Brian G. Booth

Publikováno v: Materials & Design, Vol 227, Iss , Pp 111757- (2023)

The manufacturing of metal parts via powder-bed fusion is often still facing quality issues due to microstructural porosity. Minimizing this porosity remains a priority and requires the optimization of printing process parameters. While the analysis

Externí odkaz: https://doaj.org/article/44ce176f1a66459f9327864817b5f4df

Off-axis high-speed camera-based real-time monitoring and simulation study for laser powder bed fusion of 316L stainless steel

Autor: Aditi Thanki, Carlos Jordan, Brian G. Booth, Dries Verhees, Rob Heylen, Mariam Mir, Abdellatif Bey-Temsamani, Wilfried Philips, Ann Witvrouw, Han Haitjema

In-situ monitoring and post-process metrology form a basis to better understand the fundamental physics involved in the Laser Powder Bed Fusion (LPBF) process and ultimately to determine its stability. By utilizing high-speed imaging, various process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c804f9840ae3c363f717dac89845552
https://doi.org/10.21203/rs.3.rs-2081606/v1

Stylus tip radius and wear estimation using the Rsk or the Rp and Rv parameter of a sine wave (Type C1) standard

Autor: Aditi Thanki, Han Haitjema

Publikováno v: Surface Topography: Metrology and Properties. 10:015025

Determination of the stylus tip radius and its wear or damage is a classical problem in tactile surface topography measurements. The determination of the stylus geometry may be tedious and inconvenient, therefore we looked for an easily applicable me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f561692c667cad3a5afc45d516c7fe67
https://doi.org/10.1088/2051-672x/ac5702

Study of keyhole-porosities in selective laser melting using X-ray computed tomography

Autor: Raya Mertens, Gabriel Probst, Ann Witvrouw, Aditi Thanki, Wim Dewulf, Louca Goossens, Shoufeng Yang

Publikováno v: EasyChair Preprints.

The occurrence of keyhole porosity in selective laser melting (SLM) has so far not been quantified systematically using X-ray computed tomography (X-CT). In this study, keyhole porosity in selective laser molten Ti-6Al-4V grade 23 parts was analyzed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e585f7d3fad491e9f09c3046c21fb74
https://doi.org/10.29007/3qvj

Keyhole-induced porosities in Laser-based Powder Bed Fusion (L-PBF) of Ti6Al4V: High-fidelity modelling and experimental validation

Autor: Aditi Thanki, Jesper Henri Hattel, Jesper Thorborg, Mohamad Bayat, Ann Witvrouw, Sankhya Mohanty, Niels Skat Tiedje, Shoufeng Yang

Publikováno v: Additive Manufacturing
Bayat, M, Thanki, A, Mohanty, S, Witvrouw, A, Yang, S, Thorborg, J, Skat Tiedje, N & Hattel, J H 2019, ' Keyhole-induced porosities in Laser-based Powder Bed Fusion (L-PBF) of Ti6Al4V: High-fidelity modelling and experimental validation ', Additive Manufacturing, vol. 30, 100835 . https://doi.org/10.1016/j.addma.2019.100835

Metal additive manufacturing, despite of offering unique capabilities e.g. unlimited design freedom, short manufacturing time, etc., suffers from raft of intrinsic defects. Porosity is of the defects which can badly deteriorate a part’s performance

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d74c023b1453bb3ea35cd907cf419b8
https://doi.org/10.1016/j.addma.2019.100835