Study on Geometry, Dimensional Accuracy and Structure of Parts Produced by Multi Jet Fusion
Open accessAbstract
Multi Jet Fusion (MJF) is one of the newest additive manufacturing technologies for polymer powders, introduced in recent years. This fully industrial technology is gaining big interest as it allows fast, layer-by-layer, printing process, short production cycle, and very high printing resolution. In this paper, twelve thin-walled, spherical PA12 prints were studied in terms of geometry, dimensional accuracy, and fracture surface characteristics. The various characteristic features for MJF prints were observed here for parts produced according to four various print orientations and having different thicknesses, i.e., 1, 2 or 3 mm. The study showed that MJF technology can print such difficult shapes. However, the set of parameters allowing producing parts with highest geometrical and dimensional accuracy causes at the same time some microstructural issues, like great interlayer porosity or high number of non-processed powder particles embedded in the print structure.
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Processes such as SLM exhibit porosity and structural defects, which affect component durability.
“Processes such as SLM exhibit porosity and structural defects, which affect component durability [91,92].”
From Towards Sustainability in Hydraulic Machinery Manufacturing by 3D Printing (2024) · cites this paper as [92]
Section 3.3 reports porosity and structural defects in Multi Jet Fusion (MJF) parts and says reducing porosity matters for functional properties. It does not establish these findings specifically for selective laser melting (SLM) or measure component durability. (LLM, conf=0.84)
Experimental — accuracy not yet measured
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- Authors
- Adach, M., Sokołowski, P., Piwowarczyk, T., & Nowak, K.
- Affiliations
- 3D Center Sp. z o.o., Kwiatkowskiego 4, 52-407 Wroclaw, Poland
- Wrocław University of Science and Technology (PL)
- Corresponding author
- Sokołowski, Paweł
- Venue
- Materials
- Publisher
- MDPI AG
- Published
- 2021-08-11
- Volume
- 14
- Issue
- 16
- Pages
- 4510
- ISSN
- 1996-1944 (ISSN-L)
- PMC
- PMC8398662
- OpenAlex
- W3189372706
- Cited by
- 27
- References
- 49
- Citations by year
- 2026: 6 · 2025: 7 · 2024: 6 · 2023: 4 · 2022: 4
- FWCI
- 1.14
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Materials (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Physical Sciences › Engineering › Automotive Engineering › Additive Manufacturing and 3D Printing Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Additive Manufacturing Materials and Processes
- Physical Sciences › Engineering › Mechanical Engineering › Injection Molding Process and Properties
- Keywords
- multi jet fusion, PA12, dimensional accuracy, geometry, thin-walled parts, spherical parts, printing orientation, layer thickness, fracture morphology, interlayer porosity, powder particles, polymer additive manufacturing
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