Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing

In this study, the effects of printing parameters on the microstructure and mechanical properties of pellet extrusion printed 316L stainless steel was investigated. The investigation covers several steps which are necessary to producing parts from feedstock containing binders, namely: printing; d...

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Main Author: Lee, Yi Heng
Other Authors: Seah Leong Keey
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/176367
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author Lee, Yi Heng
author2 Seah Leong Keey
author_facet Seah Leong Keey
Lee, Yi Heng
author_sort Lee, Yi Heng
collection NTU
description In this study, the effects of printing parameters on the microstructure and mechanical properties of pellet extrusion printed 316L stainless steel was investigated. The investigation covers several steps which are necessary to producing parts from feedstock containing binders, namely: printing; debinding and sintering. This is followed by microscopy analysis, hardness, and tensile testing to evaluate the properties of the parts and the optimal parameters were determined. The printing parameters selected include infill pattern and infill density. Each parameter was varied to assess their influence on the final properties. Additionally, the debinding and sintering processes were optimized to eliminate visual surface defects. The results of this study will provide an understanding on the relationship between infill printing parameters on the properties of 316L stainless steel. Furthermore, the results will serve as a solid foundation for future advancements specific to the pellet extrusion 3D printing process.
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spelling ntu-10356/1763672024-05-18T16:54:10Z Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing Lee, Yi Heng Seah Leong Keey School of Mechanical and Aerospace Engineering Singapore Institute of Manufacturing Technology MLKSEAH@ntu.edu.sg Engineering Pellet extrusion Debinding Infill In this study, the effects of printing parameters on the microstructure and mechanical properties of pellet extrusion printed 316L stainless steel was investigated. The investigation covers several steps which are necessary to producing parts from feedstock containing binders, namely: printing; debinding and sintering. This is followed by microscopy analysis, hardness, and tensile testing to evaluate the properties of the parts and the optimal parameters were determined. The printing parameters selected include infill pattern and infill density. Each parameter was varied to assess their influence on the final properties. Additionally, the debinding and sintering processes were optimized to eliminate visual surface defects. The results of this study will provide an understanding on the relationship between infill printing parameters on the properties of 316L stainless steel. Furthermore, the results will serve as a solid foundation for future advancements specific to the pellet extrusion 3D printing process. Bachelor's degree 2024-05-16T00:49:26Z 2024-05-16T00:49:26Z 2024 Final Year Project (FYP) Lee, Y. H. (2024). Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176367 https://hdl.handle.net/10356/176367 en B392 application/pdf Nanyang Technological University
spellingShingle Engineering
Pellet extrusion
Debinding
Infill
Lee, Yi Heng
Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title_full Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title_fullStr Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title_full_unstemmed Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title_short Microstructure and mechanical properties of stainless-steel fabricated via pellet extrusion printing
title_sort microstructure and mechanical properties of stainless steel fabricated via pellet extrusion printing
topic Engineering
Pellet extrusion
Debinding
Infill
url https://hdl.handle.net/10356/176367
work_keys_str_mv AT leeyiheng microstructureandmechanicalpropertiesofstainlesssteelfabricatedviapelletextrusionprinting