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Selective laser melting is an AM process, in which layers of powder are melted by the irradiation of a high energy density laser beam. ... This review paper provided a wide overview of the state of the art on mechanical properties of SLM Ti-6Al-4V regarding the influence of microstructure, residual stress, and surface roughness on the …
The paper reviews the current effort being made world wide on laser surface texturing in particular. It presents the state of the art in LST and the potential of this …
State-of-the-Art Laser Spectroscopy and its Applications : Volume II. 104.8K. views. 353. authors. 51. articles. Impact. Review. November 13, 2022. Recent …
Scaling high intensity laser systems from state-of-the-art to MW-class, enabling next generation light sources. Conferences > HILAS > 2018 > HT1A > HT1A.4. High …
Santec's Laser Technology. In 1987, we released the first commercially available stand-alone external cavity tunable laser which is operational in single longitudinal mode using a semiconductor laser medium. Since then, for over 30 years, we have been continuously developing and manufacturing products to improve performance.
Spectrum of IP Therapeutic Bronchoscopy. Therapeutic bronchoscopy was the nidus for the growth of the IP field. The introduction of laser technology into the tracheobronchial tree and the advent of airway stents in the early 1990s sparked an interest among pulmonologists to gain more experience in the diagnosis and management of …
The laser power range in CWs is between 2 and 30 W, and the treatment duration varies from a few minutes to 20 min. In PW mode, laser energy is released periodically as a sequence of pulses, and the pickup power (i.e., the power level of each pulse) is higher than that of CW emitting lasers, but the average power remains equivalent.
Examples of additive manufacturing using ultrafast lasers. (a) Early work of microfabrication using two-photon polymerization (2PP) [276]. (b) 3D spiral structures fabricated by 2PP [277].
Abstract. In additive manufacturing through laser cladding, 3D objects can be deposited on various substrates through the employment of a high-power source. Depending on the deposited material and on the laser settings, a clad with height from 50 μm to 2 mm can be produced.
More recently, the selective laser sintering (SLS) technique has been investigated for oral drug-delivery applications. Thus, this article reviews the work that has been conducted on SLS 3D for the preparation of solid oral forms (SOFs) from 2017 to 2020 and discusses the opportunities and challenges for this state-of-the-art ...
Bathymetric LiDAR technology is a technology used for simultaneous data acquisition regarding the morphology of the bottom of water reservoirs and the surrounding coastal zone, realized from the air, e.g., by plane or drone. Contrary to the air topographic LiDAR, which uses an infrared wavelength of 1064 nm, bathymetric LiDAR systems …
Review of the State-of-the-Art of Laser Ablation Inductively Coupled Plasma Mass Spectrometry. Joachim Koch [email protected] and Detlef Günther [email protected] ... This paper is a review of the basic principles and recent developments of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a method for …
Selective laser melting (SLM) is a common AM technique that is based on powder-bed fusion (PBF) to process metals; however, it is currently focused only on the fabrication of macroscale and mesoscale components. This paper reviews the state of the art of the SLM of metallic materials at the microscale level.
There is some literature surveyed about the LAL process in detail; however, to justify experimental setup, a clear cut schematic illustration is presented in Fig. 2.A high purity solid target was placed at the bottom of the cell filled with an identified liquid; a laser beam was focused on the target and ablation was started [47].Therefore, the NPs …
The primary purpose of this work is a comprehensive literature review in CO 2 laser cutting of polymeric materials. The influence of parametric variation on the cut quality is also explained. Cut quality in terms of KW, SR, HAZ, dross formation, and striations formation is analyzed by optimizing cutting variables like laser power (P L ...
Laser bio-cladding is used in implants including fabrication of metal scaffolds and bio-coating on the scaffolds to improve the wear resistence and corrosion resistence of implants and to induce bone regeneration. The current state and future trend of laser bio-cladding technology are discussed. Laser bio-cladding is used in implants including …
In English, nouns can become adjectives through the process of hyphenation. Thus, the hyphenated state-of-the-art is an adjective phrase. State of the art is a noun phrase. State-of-the-art is an adjective phrase. It can be difficult to remember the difference between these phrases, since they contain the same words.
State-of-the-art of selective laser melting process: A comprehensive review - ScienceDirect. Journal of Manufacturing Systems. Volume 63, April 2022, Pages 250 …
Laser Surface Texturing „LST…. Laser surface texturing has been used for over 10 years now in the magnetic storage industry @3,4# mainly to prevent stiction during start up. This issue will not be dealt with in the present review. Instead, the potential of LST in enhancing Tribological performance during continuous operation will be described.
State of the Art and Evolution of High-Energy Laser Weapons. Posted: Jun 11, 2020 / 09:11 AM PDT. Updated: Jul 16, 2020 / 08:13 AM PDT. SHARE. An overview of the current state-of-the-art and potential evolution of megawatt class high-energy laser weapons. Implications for space vehicles in or beyond earth orbit will be …
Actual work on shock hardening, transformation hardening, remelting, alloying and cladding is reviewed, where the main focus was on scientific work from the 21st century. Original language. Undefined. Title of host publication. Proceedings of the third International WLT-conference on Lasers in Manufacturing, 14-17 June 2005, Munich, Germany.
Gei2003] is currently done at the authors institutes. This review paper is focused on the surface. properties of materials and its changes by laser. treatment, i. e. hardening and cladding, both ...
Laser spectroscopy-based techniques have the advantages of high sensitivity, non-invasiveness and in situ, real-time observation. Furthermore, these techniques such as laser spectroscopy sensing and laser spectroscopy imaging have helped to promote its applications. Therefore, this Research Topic encourages papers about the novel …
The research of a feasibility window for the process parameters is a key element to allow to build or 14th CIRP Conference on Intelligent Computation in Manufacturing Engineering, Gulf of Naples, Italy State-of-the-art of numerical simulation of laser powder Directed Energy Deposition process Mirna Poggi*, Eleonora Atzeni, Luca …
1. Introduction. The Laser-Induced Breakdown Spectroscopy (LIBS) technique is, in brief, a mix of great potential and severe limitations. It offers a strong potential for analysis in situ and in real time, not requiring a separate sampling step. Since it does not need for sample preparation, it avoids wet chemistry.
Fig. 4. (a) Synchronization of the graphitization-wave velocity ( ) with the laser-focus velocity (j) at different values of the latter Δ and (b) the optical images of a continuous (top, vf = 12 μm/s, E = 168 nJ) and broken (bottom, vf = 72 μm/s, E = 168 nJ) wires [45]. graphitized wires were formed in its bulk.
As an additive manufacturing technology, selective laser melting (SLM) can form any complex metal parts, which has unparalleled advantages compared to traditional processing methods. However, there are still some problems such as accuracy and non-repeatability to overcome to apply SLM to production practice. The high-precision …
State-of-the-art lasers at the micro level. This three-square-millimeter filter chip can take the output of low-cost lasers and convert it such that it has the same frequency noise as bigger and ...
The laser etched depth was 20–100 nm. The tip/sample distance was regulated by a tuning-fork-based shear-force feedback. Typical writing speed is 8–12 μm/s. In the coupled laser and NSOM nano-fabrication technique, the probe-to-sample distance is a critical parameter to control both the nano-feature size and shape.
A DF is a state-of-the-art manufacturing facility that uses innovative technologies, including automation, artificial intelligence (AI), the Internet of Things, additive manufacturing (AM), SM, hybrid manufacturing (HM), sensors for real-time feedback and control, and a DT, to streamline and improve manufacturing operations.,This study presents ...