Investigation on curing strategies for metal binder jetting with Ti-6Al-4V

Metal binder jetting is a promising manufacturing technology that holds the potential to be a future competition technology to classic laser based additive manufacturing processes. In contrast to these technologies, however, metal binder jetting is much less mature. While sintering and debinding are...

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Main Authors: Kevin Janzen, Timo Rieß, Claus Emmelmann
Format: Article
Language:English
Published: Elsevier 2025-04-01
Series:Additive Manufacturing Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772369025000064
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author Kevin Janzen
Timo Rieß
Claus Emmelmann
author_facet Kevin Janzen
Timo Rieß
Claus Emmelmann
author_sort Kevin Janzen
collection DOAJ
description Metal binder jetting is a promising manufacturing technology that holds the potential to be a future competition technology to classic laser based additive manufacturing processes. In contrast to these technologies, however, metal binder jetting is much less mature. While sintering and debinding are already well known due to the spread of metal injection molding and powder deposition by laser powder bed fusion and its related processes, the often-neglected curing step represents a major challenge in process control. This study was therefore the first comprehensive investigation into the curing of metal binder jetting green parts from Ti-6Al-4 V powder with a powder size distribution below 25 µm. It was shown that the curing step has only a minor effect on the green part quality (surface roughness and density), but at the same time has a decisive influence on the green strength. In addition, position-dependent effects for the green density were detected, which indicate insufficient curing in the outer areas of the print box.
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publishDate 2025-04-01
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spelling doaj-art-6ee1c05650204873bdbfee483f92dcf72025-08-20T03:14:49ZengElsevierAdditive Manufacturing Letters2772-36902025-04-011310027210.1016/j.addlet.2025.100272Investigation on curing strategies for metal binder jetting with Ti-6Al-4VKevin Janzen0Timo Rieß1Claus Emmelmann2Fraunhofer Research Institution for Additive Manufacturing Technologies IAPT, Am Schleusengraben 14, 21029 Hamburg, Germany; Corresponding author.Fraunhofer Research Institution for Additive Manufacturing Technologies IAPT, Am Schleusengraben 14, 21029 Hamburg, GermanyInstitute of Laser and System Technologies (iLAS), Hamburg University of Technology TUHH, Harburger Schloßstr. 28, 21079 Hamburg, GermanyMetal binder jetting is a promising manufacturing technology that holds the potential to be a future competition technology to classic laser based additive manufacturing processes. In contrast to these technologies, however, metal binder jetting is much less mature. While sintering and debinding are already well known due to the spread of metal injection molding and powder deposition by laser powder bed fusion and its related processes, the often-neglected curing step represents a major challenge in process control. This study was therefore the first comprehensive investigation into the curing of metal binder jetting green parts from Ti-6Al-4 V powder with a powder size distribution below 25 µm. It was shown that the curing step has only a minor effect on the green part quality (surface roughness and density), but at the same time has a decisive influence on the green strength. In addition, position-dependent effects for the green density were detected, which indicate insufficient curing in the outer areas of the print box.http://www.sciencedirect.com/science/article/pii/S2772369025000064Metal binder jettingCuringTitanium alloys, medical technology, process qualification
spellingShingle Kevin Janzen
Timo Rieß
Claus Emmelmann
Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
Additive Manufacturing Letters
Metal binder jetting
Curing
Titanium alloys, medical technology, process qualification
title Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
title_full Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
title_fullStr Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
title_full_unstemmed Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
title_short Investigation on curing strategies for metal binder jetting with Ti-6Al-4V
title_sort investigation on curing strategies for metal binder jetting with ti 6al 4v
topic Metal binder jetting
Curing
Titanium alloys, medical technology, process qualification
url http://www.sciencedirect.com/science/article/pii/S2772369025000064
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AT timorieß investigationoncuringstrategiesformetalbinderjettingwithti6al4v
AT clausemmelmann investigationoncuringstrategiesformetalbinderjettingwithti6al4v