Parametric simulations for residual stresses and distortions of Inconel 625 fabricated by laser powder bed fusion additive manufacturing

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Poyraz, Özgür and Yasa, Evren and Tunç, Lütfi Taner and Kilicay, Koray (2021) Parametric simulations for residual stresses and distortions of Inconel 625 fabricated by laser powder bed fusion additive manufacturing. Journal of Additive Manufacturing Technologies, 1 (2). ISSN 2749-3229

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Abstract

Developments related to the laser powder bed fusion (L-PBF) expanded the application area of the additive manufacturing (AM) for metal alloys, and increased the variety of machines and materials. On the other hand, this increase exposed the need for process development to adapt new materials and shapes with acceptable metallurgical, mechanical and geometrical attributes. In recent years, researchers have sought to reduce the development costs by decreasing these process development needs for some requirements. Among these, modeling and simulations for residual stresses and distortions are common practices. Dedicated software for these applications provided remarkable savings in computational times. Nevertheless, it is still necessary to pay attention to dedicated software, due to the fact that they might have some assumptions which are unknown to the end users. This study provides an in-depth investigation of Simufact Additive software based on L-PBF of Inconel 625 alloy. In this regard, thermo-mechanical simulations were performed by comparing the results with experimental data. Simulation set-ups were fine-tuned according to comparisons, and parametric analyses were conducted. The laser power and scanning speed were found to be the most influential parameters on the resulting residual stresses.
Item Type: Article
Subjects: T Technology > TS Manufactures
T Technology > TS Manufactures > TS0200 Metal manufactures. Metalworking
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Industrial Engineering
Faculty of Engineering and Natural Sciences
Depositing User: Lütfi Taner Tunç
Date Deposited: 23 Sep 2022 14:57
Last Modified: 23 Sep 2022 14:57
URI: https://research.sabanciuniv.edu/id/eprint/44449

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