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Applied Sciences
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Advances in Additive Manufacturing and Laser Processing
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Advances in Additive Manufacturing and Laser Processing

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

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 2921

Special Issue Editors

Dr. Shaochuan Feng

E-Mail Website
Guest Editor
School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: laser materials processing and technology; additive manufacturing of metals; analytical and computational modeling
Dr. Viboon Saetang

E-Mail Website
Guest Editor
Department of Production Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
Interests: laser material processing; micro/nanomanufacturing; machining; surface engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent decades, lasers have shown superior capabilities in materials processing. The development of advanced laser materials processing technologies, represented by femtosecond laser processing, hybrid laser processing, laser additive manufacturing (AM), etc., provide more feasible tools for micro/nano processing, high-efficiency and damage-free processing of hard materials, and highly complex structure construction, for which conventional manufacturing processes barely compete in terms of processing time or even cost. This Special Issue of Applied Sciences on "Advances in Additive Manufacturing and Laser Processing" aims to present the latest research on advanced laser materials processing technologies, especially on laser processing related to AM processes. Contributions to the roles of laser parameters in the laser-based AM processes, laser post-processing of AM surfaces, and other related technology for improving the properties of AM parts are in the scope of this Special Issue. The characterization of AM parts to reveal their metallurgical structures, damage, and changes in mechanical and chemical properties is also invited. Novel findings and applications of this topic include, but are not limited to, laser powder bed fusion, selective laser sintering, direct laser deposition, laser cladding, and modification of AM surfaces. Recent advances in additive manufacturing processes performed by other high-energy beam techniques, as well as recent advances in other advanced laser materials processing technologies, are also welcome.

Dr. Shaochuan Feng
Dr. Viboon Saetang
Guest Editors

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

  • laser materials processing
  • additive manufacturing
  • 3D printing
  • powder bed fusion
  • selective laser melting
  • direct energy deposition
  • laser cladding
  • hardening
  • multi-scale structuring

Published Papers (2 papers)

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Research

16 pages, 7721 KiB  
Article
Experimental Study on Femtosecond Laser Processing Performance of Single-Crystal Silicon Carbide
by Ru Zhang, Quanjing Wang, Qingkui Chen, Aijun Tang and Wenbo Zhao
Appl. Sci. 2023, 13(13), 7533; https://doi.org/10.3390/app13137533 - 26 Jun 2023
Viewed by 974
Abstract
Femtosecond laser processing technology offers a promising technique for the preparation of micro and nanostructures of single-crystal silicon carbide (SiC), thanks to its high precision and non-destructive processing. However, further research is needed to optimize processing parameters, as well as improve efficiency and [...] Read more.
Femtosecond laser processing technology offers a promising technique for the preparation of micro and nanostructures of single-crystal silicon carbide (SiC), thanks to its high precision and non-destructive processing. However, further research is needed to optimize processing parameters, as well as improve efficiency and quality of the process. This study conducts experiments to explore the effects of femtosecond laser ablation on single-crystal SiC. The influence and significance of parameters, such as fluence (F), repetition rate, scan speed (S), multipass scanning (c) and numerical aperture on the performance of grooves, including groove depth, groove width, heat-affected zone (HAZ) width, material removal rate (MRR) and side wall inclination angle, were studied. The results show that the influence of fluence and numerical aperture on groove depth, groove width, HAZ width, MRR and side wall inclination angle is very significant. The scan speed has a very significant effect on the groove depth, groove width, HAZ width and side wall inclination angle but has insignificant effect on the MRR. Repetition rate and multipass scanning have a very significant effect on groove depth, HAZ width, MRR and side wall inclination angle and a moderately significant effect on groove width. The experimental methods of increasing the aspect ratio and reducing the HAZ width were studied, and a significance analysis was carried out. Fluence, multipass scanning and z-layer feed have significant effects on groove depth, groove width, aspect ratio, HAZ width and MRR. The influence of polarization angle on groove depth, groove width, aspect ratio and MRR is insignificant. Full article
(This article belongs to the Special Issue Advances in Additive Manufacturing and Laser Processing)
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14 pages, 3339 KiB  
Article
An Investigation of Printing Parameters of Independent Extrusion Type 3D Print Continuous Carbon Fiber-Reinforced PLA
by Zhixin Jia, Qing Wang and Jiang Liu
Appl. Sci. 2023, 13(7), 4222; https://doi.org/10.3390/app13074222 - 27 Mar 2023
Cited by 3 | Viewed by 1459
Abstract
Fused filament fabrication (FFF) technology is highly favored by various industries as the simplest and most commonly used technology in additive manufacturing. The embedding of continuous fiber-reinforced thermoplastic composites (CFRTC) is a great help to compensate for the mechanical properties of FFF-printed specimens. [...] Read more.
Fused filament fabrication (FFF) technology is highly favored by various industries as the simplest and most commonly used technology in additive manufacturing. The embedding of continuous fiber-reinforced thermoplastic composites (CFRTC) is a great help to compensate for the mechanical properties of FFF-printed specimens. In this paper, the optimal printing parameters of printed specimens containing continuous carbon fiber-reinforced PLA were investigated by the Taguchi method, full factorial analysis, and the tensile test. Fiber printing layer thickness and fiber printing speed are significant factors. After excluding the influence of fiber overlap, the optimal printing parameters were obtained. When the thickness of the fiber printing layer is 0.05 mm, the speed of the fiber printing nozzle is 250 mm/min, and the temperature of the fiber printing nozzle is 210 °C, the maximum tensile stress of the sample is 189.52 MPa. In this paper, the maximum tensile stress of the specimen printed by different printing parameters can be doubled, which shows the influence of printing parameters on the mechanical properties of the specimen. Compared with the specimen using pure PLA printing, the increase was 703.5%. Then the failure mechanism of 3D-printed CFRTC specimens with different layer thicknesses was investigated by using microstructural morphology and tensile fracture interfacial property analysis. The influence of layer thickness parameters on the interfacial bonding force was revealed. Through analysis, it is found that the lower the thickness of the specimen printing layer, the better the interface bonding force of the specimen, and the minimum layer thickness suitable for FFF independent extrusion printer is found. Full article
(This article belongs to the Special Issue Advances in Additive Manufacturing and Laser Processing)
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