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Applied Sciences
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Multi-Material Additive Manufacturing
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Multi-Material Additive Manufacturing

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Additive Manufacturing Technologies".

Deadline for manuscript submissions: closed (25 December 2022) | Viewed by 8374

Special Issue Editor

Dr. Joamin Gonzalez-Gutierrez

E-Mail Website
Guest Editor
Materials Research and Technology, Luxembourg Institute of Science and Technology, L-4940 Hautcharage, Luxembourg
Interests: development; characterization; processing and recycling of polymers; composites & biomaterials Extrusion; compounding; injection molding & additive manufacturing of polymers and composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is my pleasure to announce a new Special Issue in the Applied Science Journal.

The topic of the Issue is multi-material additive manufacturing. In recent years, additive manufacturing has been dramatically improved, and it is the technology of choice for manufacturing products with highly complex geometry, short production runs, and customizable features. The fabrication process followed in additive manufacturing lends itself to combining different materials into a single three-dimensional structure. By combining different materials into a single component, new functionality can be achieved. Materials have to be selected and modified as needed, and manufacturing technologies adjusted and improved to manufacture multi-material structures successfully.

Therefore, this Special Issue intends to contribute to the scientific community, presenting the most relevant advances in developing, processing, characterizing, and simulating the materials and processes for multi-material additive manufacturing.

Proposed topics, including, but not limited to, the following are encouraged:

  • Polymer composites and blends for multi-material additive manufacturing;
  • Continuous fiber reinforcement in additive manufacturing;
  • Direct additive manufacturing methods for multi-material fabrication;
  • Indirect additive manufacturing methods for multi-material fabrication;
  • Metal-polymer, metal-ceramic, ceramic-polymer additive manufacturing processes;
  • Simulation and experimental validation of multi-material additive manufacturing processes;
  • Simulation and experimental validation of the performance of multi-material specimens;
  • Applications of multi-material structures for 4D printing, soft robotics, electronics, manufacturing and medicine;
  • Hybrid manufacturing methods for multi-material fabrication;
  • Post-processing methods to improve the performance of multi-material specimens.

I hope to receive your high-quality research contributions and look forward to reading your valuable results.

Dr. Joamin Gonzalez-Gutierrez
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • additive manufacturing
  • biomaterials
  • metal
  • ceramics
  • polymer composites
  • polymer blends
  • powder bed fusion
  • vat photo-polymerization
  • binder jetting
  • material jetting

Published Papers (2 papers)

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Research

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17 pages, 49749 KiB  
Article
Bending Properties of Lightweight Copper Specimens with Different Infill Patterns Produced by Material Extrusion Additive Manufacturing, Solvent Debinding and Sintering
by Joamin Gonzalez-Gutierrez, Santiago Cano, Josef Valentin Ecker, Michael Kitzmantel, Florian Arbeiter, Christian Kukla and Clemens Holzer
Appl. Sci. 2021, 11(16), 7262; https://0-doi-org.brum.beds.ac.uk/10.3390/app11167262 - 06 Aug 2021
Cited by 19 | Viewed by 2881
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Multi-Material Additive Manufacturing)
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Review

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35 pages, 14884 KiB  
Review
4D Printing of Multicomponent Shape-Memory Polymer Formulations
by Muhammad Yasar Razzaq, Joamin Gonzalez-Gutierrez, Gregory Mertz, David Ruch, Daniel F. Schmidt and Stephan Westermann
Appl. Sci. 2022, 12(15), 7880; https://0-doi-org.brum.beds.ac.uk/10.3390/app12157880 - 05 Aug 2022
Cited by 20 | Viewed by 4640
Abstract
Four-dimensional (4D) printing technology, as a next-generation additive manufacturing method, enables printed objects to further change their shapes, functionalities, or properties upon exposure to external stimuli. The 4D printing of programmable and deformable materials such as thermo-responsive shape-memory polymers (trSMPs), which possess the [...] Read more.
Four-dimensional (4D) printing technology, as a next-generation additive manufacturing method, enables printed objects to further change their shapes, functionalities, or properties upon exposure to external stimuli. The 4D printing of programmable and deformable materials such as thermo-responsive shape-memory polymers (trSMPs), which possess the ability to change shape by exposure to heat, has attracted particular interest in recent years. Three-dimensional objects based on SMPs have been proposed for various potential applications in different fields, including soft robotics, smart actuators, biomedical and electronics. To enable the manufacturing of complex multifunctional 3D objects, SMPs are often coupled with other functional polymers or fillers during or before the 3D printing process. This review highlights the 4D printing of state-of-the-art multi-component SMP formulations. Commonly used 4D printing technologies such as material extrusion techniques including fused filament fabrication (FFF) and direct ink writing (DIW), as well as vat photopolymerization techniques such as stereolithography (SLA), digital light processing (DLP), and multi-photon polymerization (MPP), are discussed. Different multicomponent SMP systems, their actuation methods, and potential applications of the 3D printed objects are reviewed. Finally, current challenges and prospects for 4D printing technology are summarized. Full article
(This article belongs to the Special Issue Multi-Material Additive Manufacturing)
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