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Advances in Laser Technologies and Applications (Volume II)
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Advances in Laser Technologies and Applications (Volume II)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (10 January 2023) | Viewed by 4970
Related Special Issue: Advances in Laser Technologies and Applications in Materials (15 articles)

Special Issue Editor

Dr. Miguel Morales

E-Mail Website
Guest Editor
Centro Laser, Universidad Politecnica de Madrid, Madrid, Spain
Interests: laser processing; LIFT; laser shock processing; additive manufacturing; modeling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We have the pleasure to invite you to submit a manuscript to the forthcoming Special Issue, “Advances in Laser Technologies and Applications”, for the journal Materials (Impact Factor (2020): 3.623, JCR category rank: 17/80 (Q1) in Category "Metallurgy & Metallurgical Engineering", 152/335 (Q2) in “Materials Science, Multidisciplinary”).

Since the invention of the laser, a broad variety of laser systems with different properties (wavelength, pulse duration, repetition rate, pulse energy, etc.) has been developed, which has allowed for the processing of almost any material (from metals to glass). Laser has been established as the key tool for many material processing applications, and many times it is the only real solution available. These great properties for material processing, combined with its high flexibility and scalability, have allowed for its use in high-throughput industrial applications, and many current industrial production processes would not be possible without it.

This Special Issue covers the whole spectrum of laser material processing, ranging from novel trends in well-established industrial processing techniques (such as laser welding or laser micro processing) to fundamental research in novel applications (such as laser tissue engineering or surface functionalization). This issue will cover applications with new laser systems, new beam delivering systems (including high-speed polygon scanners, ultra-fast varifocal lenses, spatial light modulator (SLM), etc.) and new methods for monitoring and adaptive control of laser processes. In addition, fundamental research concerning the interaction between laser radiation and matter, including simulations and modeling of these processes, will also be topics of specific interest.

Dr. Miguel Morales
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. Materials 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 2600 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 processing
  • modeling
  • microprocessing
  • high throughput
  • process monitoring
  • industrial manufacturing

Related Special Issue

Published Papers (3 papers)

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Research

11 pages, 4817 KiB  
Article
Single-Shot Multi-Frame Imaging of Femtosecond Laser-Induced Plasma Propagation
by Tianyong Zhang, Baoshan Guo, Lan Jiang, Tong Zhu, Yanhong Hua, Ningwei Zhan and Huan Yao
Materials 2023, 16(8), 3264; https://doi.org/10.3390/ma16083264 - 21 Apr 2023
Cited by 2 | Viewed by 1550
Abstract
Single-shot ultrafast multi-frame imaging technology plays a crucial role in the observation of laser-induced plasma. However, there are many challenges in the application of laser processing, such as technology fusion and imaging stability. To provide a stable and reliable observation method, we propose [...] Read more.
Single-shot ultrafast multi-frame imaging technology plays a crucial role in the observation of laser-induced plasma. However, there are many challenges in the application of laser processing, such as technology fusion and imaging stability. To provide a stable and reliable observation method, we propose an ultrafast single-shot multi-frame imaging technology based on wavelength polarization multiplexing. Through the frequency doubling and birefringence effects of the BBO and the quartz crystal, the 800 nm femtosecond laser pulse was frequency doubled to 400 nm, and a sequence of probe sub-pulses with dual-wavelength and different polarization was generated. The coaxial propagation and framing imaging of multi-frequency pulses provided stable imaging quality and clarity, as well as high temporal/spatial resolution (200 fs and 228 lp/mm). In the experiments involving femtosecond laser-induced plasma propagation, the probe sub-pulses measured their time intervals by capturing the same results. Specifically, the measured time intervals were 200 fs between the same color pulses and 1 ps between the adjacent different. Finally, based on the obtained system time resolution, we observed and revealed the evolution mechanism of femtosecond laser-induced air plasma filaments, the multifilament propagation of femtosecond laser in fused silica, and the influence mechanism of air ionization on laser-induced shock waves. Full article
(This article belongs to the Special Issue Advances in Laser Technologies and Applications (Volume II))
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12 pages, 5454 KiB  
Article
Picosecond Laser Shock Micro-Forming of Stainless Steel: Influence of High-Repetition Pulses on Thermal Effects
by José Manuel López, David Munoz-Martin, Juan José Moreno-Labella, Miguel Panizo-Laiz, Gilberto Gomez-Rosas, Carlos Molpeceres and Miguel Morales
Materials 2022, 15(12), 4226; https://doi.org/10.3390/ma15124226 - 15 Jun 2022
Cited by 1 | Viewed by 1389
Abstract
A study of the peen forming of thin stainless steel metal foils (50 μm thick) using a solid-state ps-pulsed laser, emitting at a wavelength of 1064 nm was conducted. The pitch distance between consecutive laser pulses was kept constant by tuning [...] Read more.
A study of the peen forming of thin stainless steel metal foils (50 μm thick) using a solid-state ps-pulsed laser, emitting at a wavelength of 1064 nm was conducted. The pitch distance between consecutive laser pulses was kept constant by tuning the laser repetition rate from 0.4 to 10 kHz, and subsequently the scanning speed. The induced bending angle and the radius of curvature were used to measure the effect of the treatment. Their dependence on the pulse energy, the treated area, the distance between lines, and the laser repetition rate was studied. High repetition rates do not allow the sample to cool down, affecting the bending to the point of being negligible. An FEM simulation and experiments were carried out to prove that the increase in temperature due to high repetition rate can relax the stresses induced by laser peen treatment, thus preventing bending in the sample. Full article
(This article belongs to the Special Issue Advances in Laser Technologies and Applications (Volume II))
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13 pages, 5003 KiB  
Article
Influence of the Gap between Substrates in the Laser-Induced Transference of High-Viscosity Pastes
by Juan José Moreno-Labella, David Munoz-Martin, Guillermo Vallejo, Carlos Molpeceres and Miguel Morales
Materials 2021, 14(19), 5567; https://doi.org/10.3390/ma14195567 - 25 Sep 2021
Cited by 1 | Viewed by 1467
Abstract
Laser-induced forward transfer for high-viscosity—of Pa·s—pastes differ from standard LIFT processes in its dynamics. In most techniques, the transference after setting a great gap does not modify the shape acquired by the fluid, so it stretches until it breaks into droplets. In contrast, [...] Read more.
Laser-induced forward transfer for high-viscosity—of Pa·s—pastes differ from standard LIFT processes in its dynamics. In most techniques, the transference after setting a great gap does not modify the shape acquired by the fluid, so it stretches until it breaks into droplets. In contrast, there is no transferred material when the gap is bigger than three times the paste thickness in LIFT for high-viscosity pastes, and only a spray is observed on the acceptor using this configuration. In this work, the dynamics of the paste have been studied using a finite-element model in COMSOL Multiphysics, and the behavior of the paste varying the gap between the donor and the acceptor substrates has also been modeled. The paste bursts for great gaps, but it is confined when the acceptor is placed close enough. The obtained simulations have been compared with a previous work, in which the paste structures were photographed. The analysis of the simulations in terms of speed allows for predicting the burst of the paste—spray regime—and the construction of a printability map regarding the gap between the substrates. Full article
(This article belongs to the Special Issue Advances in Laser Technologies and Applications (Volume II))
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