Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering
Material extrusion additive manufacturing (MEX) is a versatile technology for producing complex specimens of polymers, ceramics and metals. Highly-filled filaments composed of a binder system and a high-volume content of sinterable powders are needed to produce ceramic or metal parts. After shaping...
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MDPI AG
2021-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/16/7262 |
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| author | Joamin Gonzalez-Gutierrez Santiago Cano Josef Valentin Ecker Michael Kitzmantel Florian Arbeiter Christian Kukla Clemens Holzer |
| author_facet | Joamin Gonzalez-Gutierrez Santiago Cano Josef Valentin Ecker Michael Kitzmantel Florian Arbeiter Christian Kukla Clemens Holzer |
| author_sort | Joamin Gonzalez-Gutierrez |
| collection | DOAJ |
| description | Material extrusion additive manufacturing (MEX) is a versatile technology for producing complex specimens of polymers, ceramics and metals. Highly-filled filaments composed of a binder system and a high-volume content of sinterable powders are needed to produce ceramic or metal parts. After shaping the parts via MEX, the binder is removed and the specimens are sintered to obtain a dense part of the sintered filler particles. In this article, the applicability of this additive manufacturing process to produce copper specimens is demonstrated. The particular emphasis is on investigating the production of lightweight specimens that retain mechanical properties without increasing their weight. The effect of infill grades and the cover presence on the debinding process and the flexural properties of the sintered parts was studied. It was observed that covers could provide the same flexural strength with a maximum weight reduction of approximately 23%. However, a cover on specimens with less than 100% infill significantly slows down the debinding process. The results demonstrate the applicability of MEX to produce lightweight copper specimens. |
| first_indexed | 2024-03-10T09:02:39Z |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T09:02:39Z |
| publishDate | 2021-08-01 |
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| series | Applied Sciences |
| spelling | doaj.art-a8a19b844e804f39a27e045a9ae66ff12023-11-22T06:38:59ZengMDPI AGApplied Sciences2076-34172021-08-011116726210.3390/app11167262Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and SinteringJoamin Gonzalez-Gutierrez0Santiago Cano1Josef Valentin Ecker2Michael Kitzmantel3Florian Arbeiter4Christian Kukla5Clemens Holzer6Department of Polymer Engineering and Science, Institute of Polymer Processing, Montanuniversitaet Leoben, Otto Gloeckel-Str. 2, 8700 Leoben, AustriaDepartment of Polymer Engineering and Science, Institute of Polymer Processing, Montanuniversitaet Leoben, Otto Gloeckel-Str. 2, 8700 Leoben, AustriaCenter of Digitalisation, Research and Development, Fill GmbH, Zukunftsstraße 2, 4942 Gurten, AustriaRHP-Technology GmbH, Austrian Research and Technology Center, 2444 Seibersdorf, AustriaDepartment of Polymer Engineering and Science, Institute of Material Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Str. 2, 8700 Leoben, AustriaIndustrial Liaison Department, Montanuniversitaet Leoben, Peter Tunner-Str. 27, 8700 Leoben, AustriaDepartment of Polymer Engineering and Science, Institute of Polymer Processing, Montanuniversitaet Leoben, Otto Gloeckel-Str. 2, 8700 Leoben, AustriaMaterial extrusion additive manufacturing (MEX) is a versatile technology for producing complex specimens of polymers, ceramics and metals. Highly-filled filaments composed of a binder system and a high-volume content of sinterable powders are needed to produce ceramic or metal parts. After shaping the parts via MEX, the binder is removed and the specimens are sintered to obtain a dense part of the sintered filler particles. In this article, the applicability of this additive manufacturing process to produce copper specimens is demonstrated. The particular emphasis is on investigating the production of lightweight specimens that retain mechanical properties without increasing their weight. The effect of infill grades and the cover presence on the debinding process and the flexural properties of the sintered parts was studied. It was observed that covers could provide the same flexural strength with a maximum weight reduction of approximately 23%. However, a cover on specimens with less than 100% infill significantly slows down the debinding process. The results demonstrate the applicability of MEX to produce lightweight copper specimens.https://www.mdpi.com/2076-3417/11/16/7262additive manufacturingcopperdebindinglightweightmaterial extrusionsintering |
| spellingShingle | Joamin Gonzalez-Gutierrez Santiago Cano Josef Valentin Ecker Michael Kitzmantel Florian Arbeiter Christian Kukla Clemens Holzer Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering Applied Sciences additive manufacturing copper debinding lightweight material extrusion sintering |
| title | Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering |
| title_full | Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering |
| title_fullStr | Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering |
| title_full_unstemmed | Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering |
| title_short | Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering |
| title_sort | bending properties of lightweight copper specimens with different infill patterns produced by material extrusion additive manufacturing solvent debinding and sintering |
| topic | additive manufacturing copper debinding lightweight material extrusion sintering |
| url | https://www.mdpi.com/2076-3417/11/16/7262 |
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