TY - CONF
T1 - A strategy to determine the optimal parameters for producing high density part in selective laser melting process
AU - Tran, Hong Chuong
AU - Lo, Yu Lung
AU - Le, Trong Nhan
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided to this study by the Ministry of Science and Technology of Taiwan under Grant Nos. MOST 105-2218-E-006-015 and MOST 107-2218-E-006-051. The research was also supported in part by the Ministry of Education, Taiwan, Headquarters of University Advancement through funding to the Intelligent Manufacturing Research Center (iMRC), National Cheng Kung University (NCKU).
Publisher Copyright:
© Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019. All rights reserved.
PY - 2019
Y1 - 2019
N2 - Finding the processing conditions which can produce high density components using Selective Laser Melting (SLM) technique based on trial-and-error is costly and time consuming. With a given SLM machine characteristics (e.g., laser power, scanning speed, laser spot size and laser type), powder material and powder size distribution, the present study proposes an approach to reduce the time and cost in searching optimal parameters for fabricating fully dense parts. The proposed method include several simulation models which are powder bed simulation, Monte Carlo ray tracing simulation, Finite Element Heat Transfer simulation and surrogate modeling. These simulation models are employed to find the viable processing parameters to produce high density component. The experimental results show that the proposed methods results in a maximum component density of 99.97%, an average component density of 99.89% and a maximum standard deviation of 0.03%.
AB - Finding the processing conditions which can produce high density components using Selective Laser Melting (SLM) technique based on trial-and-error is costly and time consuming. With a given SLM machine characteristics (e.g., laser power, scanning speed, laser spot size and laser type), powder material and powder size distribution, the present study proposes an approach to reduce the time and cost in searching optimal parameters for fabricating fully dense parts. The proposed method include several simulation models which are powder bed simulation, Monte Carlo ray tracing simulation, Finite Element Heat Transfer simulation and surrogate modeling. These simulation models are employed to find the viable processing parameters to produce high density component. The experimental results show that the proposed methods results in a maximum component density of 99.97%, an average component density of 99.89% and a maximum standard deviation of 0.03%.
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M3 - Paper
AN - SCOPUS:85095966021
SP - 1350
EP - 1352
T2 - 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019
Y2 - 12 August 2019 through 14 August 2019
ER -