Defects and anomalies in powder bed fusion metal additive manufacturing

A Mostafaei, C Zhao, Y He, SR Ghiaasiaan… - Current Opinion in Solid …, 2022 - Elsevier
Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …

[HTML][HTML] Holistic computational design within additive manufacturing through topology optimization combined with multiphysics multi-scale materials and process …

M Bayat, O Zinovieva, F Ferrari, C Ayas… - Progress in Materials …, 2023 - Elsevier
Additive manufacturing (AM) processes have proven to be a perfect match for topology
optimization (TO), as they are able to realize sophisticated geometries in a unique layer-by …

Topology optimization for metal additive manufacturing: current trends, challenges, and future outlook

O Ibhadode, Z Zhang, J Sixt, KM Nsiempba… - Virtual and Physical …, 2023 - Taylor & Francis
Metal additive manufacturing is gaining immense research attention. Some of these
research efforts are associated with physics, statistical, or artificial intelligence-driven …

[HTML][HTML] Fatigue damage process of additively manufactured 316 L steel using X-ray computed tomography imaging

JN Dastgerdi, O Jaberi, H Remes, P Lehto… - Additive …, 2023 - Elsevier
Failure under cyclic loading in the presence of manufacturing defects is a substantial risk for
additively manufactured (AM) metal components. This study aims to clarify the correlation …

SmartScan: An intelligent scanning approach for uniform thermal distribution, reduced residual stresses and deformations in PBF additive manufacturing

KS Ramani, C He, YL Tsai, CE Okwudire… - Additive …, 2022 - Elsevier
Parts produced by laser or electron-beam powder bed fusion (PBF) additive manufacturing
are prone to residual stresses, deformations, and other defects linked to non-uniform …

Challenges in topology optimization for hybrid additive–subtractive manufacturing: A review

J Liu, J Huang, Y Zheng, S Hou, S Xu, Y Ma… - Computer-Aided …, 2023 - Elsevier
Hybrid additive–subtractive manufacturing (HASM) is a revolutionary technique that
fabricates complex-shaped parts in high precision. One setup to finish complicated …

Simultaneous optimization of hatching orientations and lattice density distribution for residual warpage reduction in laser powder bed fusion considering layerwise …

A Takezawa, H Guo, R Kobayashi, Q Chen, AC To - Additive Manufacturing, 2022 - Elsevier
The reduction in the residual warpage generated via fabrication is an emerging issue in
metals' laser powder bed fusion additive manufacturing (AM). One solution from a design for …

Numerical investigation on the effect of residual stresses on the effective mechanical properties of 3D-printed TPMS lattices

N Ahmed, I Barsoum, RK Abu Al-Rub - Metals, 2022 - mdpi.com
The layer-by-layer process of additive manufacturing (AM) is known to give rise to high
thermal gradients in the built body resulting in the accumulation of high residual stresses. In …

An intelligent scanning strategy (SmartScan) for improved part quality in multi-laser PBF additive manufacturing

C He, KS Ramani, CE Okwudire - Additive Manufacturing, 2023 - Elsevier
To enable faster production and/or the manufacture of large parts, multi-laser powder bed
fusion (PBF) systems are increasingly being adopted in practice. There is also research …

Effect of scanning strategy on microstructure and texture evolution in a selective laser melted Al-33Cu eutectic alloy

RJ Vikram, SA Gokulnath, KG Prashanth… - Journal of Alloys and …, 2023 - Elsevier
Laser-based powder-bed fusion (LPBF)/Selective laser melting (SLM) was used to fabricate
a eutectic composition of Al-33Cu alloys in-situ. Different scan strategies (1× 1, 2× 2, 3× 3 …