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Machines
Special Issues
Process Innovation in Digital Manufacturing
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Process Innovation in Digital Manufacturing

A special issue of Machines (ISSN 2075-1702).

Deadline for manuscript submissions: closed (31 January 2018) | Viewed by 14313

Special Issue Editor

Prof. Dr. Keng Hsu

E-Mail Website
Guest Editor
Department of Mechanical Engineering, University of Louisville, Louisville, KY 40292, USA
Interests: advanced manufacturing at multiple scales in both top-down (subtractive) and bottom-up (additive) approach; scalable nanomanufacturing process development; metal/semiconductor/metal-semicon hybrid nanomaterials for energy conversion and storage; additive manufacturing process development; engineered anisotropic materials by additive processes; meso-structure materials; metamaterials; plasmonics; solid-state electrochemistry

Special Issue Information

Dear Colleagues,

Digital manufacturing strings the aspects of design, communication in manufacturing environments, material processing, machine and process control, and evaluation and characterization together in a digital thread, and promises the reshaping of the manufacturing landscape in the foreseeable future. At the core of digital manufacturing lies what is essential to the very idea of digital manufacturing, and to any manufacturing technologies: Materials processing. It is through innovations in materials processing, digital manufacturing-and manufacturing as a whole-can see true advancements. In this Special Issue on “Process Innovation in Digital Manufacturing”, recent original research and development works in advancing materials processing and understanding material-process interaction in the context of manufacturing are assembled to provide researchers, engineers, and educators a view of recent progress in advancing the field of digital manufacturing, and in manufacturing as a whole.

Prof. Dr. Keng Hsu
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. Machines is an international peer-reviewed open access monthly 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 process monitoring;

  • Additive manufacturing closed-loop control;

  • Additive manufacturing process modeling;

  • Multi-axis additive manufacturing;

  • Multi-material additive manufacturing;

  • Multi-process additive manufacturing;

  • Hybrid additive-subtractive process integration;

  • Novel additive manufacturing processes;

  • Additive manufacturing process scale up;

  • Parallel additive manufacturing processes.

Published Papers (2 papers)

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Research

17 pages, 4950 KiB  
Article
The Setup Design for Selective Laser Sintering of High-Temperature Polymer Materials with the Alignment Control System of Layer Deposition
by Alexey Nazarov, Innokentiy Skornyakov and Igor Shishkovsky
Machines 2018, 6(1), 11; https://doi.org/10.3390/machines6010011 - 05 Mar 2018
Cited by 10 | Viewed by 7213
Abstract
This paper presents the design of an additive setup for the selective laser sintering (SLS) of high-temperature polymeric materials, which is distinguished by an original control system for aligning the device for depositing layers of polyether ether ketone (PEEK) powder. The kinematic and [...] Read more.
This paper presents the design of an additive setup for the selective laser sintering (SLS) of high-temperature polymeric materials, which is distinguished by an original control system for aligning the device for depositing layers of polyether ether ketone (PEEK) powder. The kinematic and laser-optical schemes are given. The main cooling circuits are described. The proposed technical and design solutions enable conducting the SLS process in different types of high-temperature polymer powders. The principles of the device adjustment for depositing powder layers based on an integral thermal analysis are disclosed. The PEEK sinterability was shown on the designed installation. The physic-mechanical properties of the tested 3D parts were evaluated in comparison with the known data and showed an acceptable quality. Full article
(This article belongs to the Special Issue Process Innovation in Digital Manufacturing)
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10503 KiB  
Article
Mechatronic Design for an Extrusion-Based Additive Manufacturing Machine
by Hermes Giberti, Luca Sbaglia and Marco Silvestri
Machines 2017, 5(4), 29; https://doi.org/10.3390/machines5040029 - 29 Nov 2017
Cited by 28 | Viewed by 6628
Abstract
3D printers, especially in the implementation of innovative extrusion processes which do not have a long history of development, are often built by adapting mechanical designs, drives and controls previously developed for generic machine tools. This is done through a process of choice [...] Read more.
3D printers, especially in the implementation of innovative extrusion processes which do not have a long history of development, are often built by adapting mechanical designs, drives and controls previously developed for generic machine tools. This is done through a process of choice and integration which is based principally on empirical criteria and taking into account separately the different aspects and parameters. Hereafter, we present an integrated mechatronic approach which has been adopted to design from the scratch a machine to implement the innovative metal injection moulding (MIM) technology. Its extrusion rate involves the adaptation of the generated trajectories and consequently requires “ad hoc” designs, drives and numerical controls (NC) to enable non standard acceleration (and hence torque) setpoint curves. Overall, the project resulted in an acceptable workspace volume (depending on the number of degrees of freedom of the platform) and allows one to combine the extruder flow rate, the given accuracy and the required working speed (1 m/s). The system is currently used as a test bench for exploring and optimizing the parameter space of a new MIM process. Full article
(This article belongs to the Special Issue Process Innovation in Digital Manufacturing)
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