In the laser powder bed fusion process, the melting-solidification characteristics of 316L stainless steel have a great effect on the workpiece quality. In this paper, a multi-physics model was constructed using the finite volume method (FVM) to simulate the melting-solidification process of a 316L powder bed via laser powder bed fusion. In this physical model, the phase change process, the influence of temperature gradient on surface tension of molten pool, and the influence of recoil pressure caused by the metal vapor on molten pool surface were considered. Using this model, the effects of laser scanning speed, hatch space, and laser power on temperature distribution, keyhole depth, and workpiece quality were studied. This study can be used to guide the optimization of process parameters, which is beneficial to the improvement of workpiece quality.
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Univ Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, ItalyUniv Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, Italy
Ponticelli, Gennaro Salvatore
Venettacci, Simone
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Univ Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, ItalyUniv Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, Italy
Venettacci, Simone
Giannini, Oliviero
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Univ Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, ItalyUniv Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, Italy
Giannini, Oliviero
Guarino, Stefano
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Univ Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, ItalyUniv Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, Italy
Guarino, Stefano
Horn, Matthias
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Univ Appl Sci Mittweida, Laserinst Hsch Mittweida, Technikumpl 17, D-09648 Mittweida, GermanyUniv Rome Niccolo Cusano, Dept Engn, Via Don Carlo Gnocchi 3, I-00166 Rome, Italy
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King Abdulaziz City Sci & Technol, Ctr Excellence Adv Mat & Mfg, POB 6086, Riyadh 11442, Saudi Arabia
King Abdulaziz City Sci & Technol, Adv Mfg Technol Inst, POB 6086, Riyadh 11442, Saudi Arabia
King Abdulaziz City Sci & Technol, Adv Mat Technol Inst, POB 6086, Riyadh 11442, Saudi ArabiaKing Abdulaziz City Sci & Technol, Ctr Excellence Adv Mat & Mfg, POB 6086, Riyadh 11442, Saudi Arabia
Kurdi, Abdulaziz
Tabbakh, Thamer
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King Abdulaziz City Sci & Technol, Microelect & Semicond Inst, POB 6086, Riyadh 11442, Saudi ArabiaKing Abdulaziz City Sci & Technol, Ctr Excellence Adv Mat & Mfg, POB 6086, Riyadh 11442, Saudi Arabia
Tabbakh, Thamer
Basak, Animesh Kumar
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Univ Adelaide, Adelaide Microscopy, Adelaide, SA 5005, AustraliaKing Abdulaziz City Sci & Technol, Ctr Excellence Adv Mat & Mfg, POB 6086, Riyadh 11442, Saudi Arabia
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Univ Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA
Kim, Changgong
Yin, Houshang
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Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA
Yin, Houshang
Shmatok, Andrii
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Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA
Shmatok, Andrii
Prorok, Barton C.
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Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA
Prorok, Barton C.
Lou, Xiaoyuan
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Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA
Lou, Xiaoyuan
Matlack, Kathryn H.
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Univ Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USAUniv Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA