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Trapped powder remo...
Trapped powder removal from sheet-based porous structures based on triply periodic minimal surfaces fabricated by electron beam powder bed fusion
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Khrapov, D. (author)
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Paveleva, A. (author)
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Kozadayeva, M. (author)
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Evsevleev, S. (author)
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Mishurova, T. (author)
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Bruno, G. (author)
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Surmenev, R. (author)
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- Koptyug, Andrey, 1956- (author)
- Mittuniversitetet,Institutionen för ingenjörsvetenskap, matematik och ämnesdidaktik (2023-),Tomsk Polytechnic University, Russia,SportsTech Research Center
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Surmeneva, M. (author)
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(creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: Materials Science & Engineering. - : Elsevier BV. - 0921-5093 .- 1873-4936. ; 862
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Electron Beam Powder Bed Fusion-manufactured (E-PBF) porous components with narrow pores or channels and rough walls or struts can be filled with trapped powder after the manufacturing process. Adequate powder removal procedures are required, especially for high-density porous structures. In the present research, sheet-based porous structures with different thicknesses based on triply periodic minimal surfaces fabricated by E-PBF were subjected to different post-processing methods, including a traditional powder recovery system for E-PBF, chemical etching and ultrasound vibration-assisted powder removal. Wall thickness, internal defects, microstructure and morphology features, powder distribution inside the specimens, mechanical properties and deformation modes were investigated. A powder recovery system could not remove all residual powder from dense structures. In turn, chemical etching was effective for surface morphology changes and subsurface layers elimination but not for powder removal, as it affected the wall thickness, considerably influencing the mechanical properties of the whole structure. The ultrasound vibration method was quite effective for the removal of residual powder from sheet-based TMPS structures and without a severe degradation of mechanical properties. Ultrasound vibration also caused grain refinement.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- Additive manufacturing
- Electron beam powder bed fusion
- Residual powder removal
- Ti6Al4V alloy
- TPMS structures
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Khrapov, D.
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Paveleva, A.
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Kozadayeva, M.
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Evsevleev, S.
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Mishurova, T.
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Bruno, G.
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show more...
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Surmenev, R.
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Koptyug, Andrey, ...
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Surmeneva, M.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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Materials Scienc ...
- By the university
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Mid Sweden University