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Journal articles on the topic 'Laser melting deposition'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Seto, Naoki, and Hiroshi Sato. "Deposition Conditions for Laser Formation Processes with Filler Wire." International Journal of Automation Technology 10, no. 6 (2016): 899–908. http://dx.doi.org/10.20965/ijat.2016.p0899.

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Recently, studies on three-dimensional (3D) formation technology, which is capable of forming components directly, have become increasingly popular as a part of additive manufacturing technologies. However, a very limited amount of information has been published about its processing conditions or settings. In this study, we have prototyped a wire-feeding type 3D laser deposition equipment to publish information about adjusting the deposition conditions and examining the deposition characteristics, which can be used as a reference by engineers who carry out 3D formations. We hope that this stud

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2

Zheng, Huadong, Caidong Wang, Zhigen Fei, Lumin Chen, and Yan Cheng. "Robot posture generation method for laser melting deposition." Industrial Robot: the international journal of robotics research and application 47, no. 6 (2020): 859–66. http://dx.doi.org/10.1108/ir-04-2020-0069.

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Purpose This paper aims to provide a posture generation method of robot deposition paths based on intersection topology, which is helpful to contribute to improving the flexibility and deposition capability of the deposition system. Design/methodology/approach Via the geometry information and normal vector information of the stereolithography (STL) model, the intersecting edge information is generated and the topological relationship of the model is established. Through the removal of redundant points for the STL model and the sort of robot path points, the position information of robot path p

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3

Soane, Nicholas, Andrew Cockburn, Martin Sparkes, and William O’Neill. "Deposition of Self-Lubricating Coatings via Supersonic Laser Deposition (SLD)." Coatings 12, no. 6 (2022): 760. http://dx.doi.org/10.3390/coatings12060760.

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This paper describes the use of Supersonic Laser Deposition (SLD) to manufacture nickel/graphite composite coatings on titanium and aluminium substrates. Laser heating is critical for depositing coatings containing up to 13.3 vol% graphite. For a given feedstock composition, the resulting graphite content and average size of the graphite particles retained in the coating increases with laser power, until substrate melting occurs. The effect of the powder type, feedstock composition, and process conditions on coating structure is characterized. The friction and wear behaviour of selected coatin

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Yingchun, Guan, Zhou Wei, Zheng Hongyu, Li Zhongli, Seng Hwee Leng, and Hong Minghui. "Analysis of selective vaporization behavior in laser melting of magnesium alloy by plume deposition." Laser and Particle Beams 32, no. 1 (2013): 49–54. http://dx.doi.org/10.1017/s0263034613000608.

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AbstractLaser surface melting is one of the most important processes in laser material processing. Selective vaporization of alloying elements in laser melting offers fundamental understanding of laser processing on metallic alloys. This work provides linkage between laser melting and material properties using secondary ion mass spectrometry (SIMS) for tiny vaporized species in laser-generated plume and energy dispersive spectroscopy (EDS) for solid solution range in molten pool, both qualitatively and quantitatively (up to hundreds of micron). Silicon wafer was used to collect the generated p

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Wu, Yongjian, Jian Zhou, Yan Wen, and Lechun Xie. "Investigation on Transport Phenomena and Molten Pool Dynamics During Laser Melting Deposition of Ti-6Al-4V." Journal of Physics: Conference Series 2795, no. 1 (2024): 012021. http://dx.doi.org/10.1088/1742-6596/2795/1/012021.

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Abstract The physical phenomena involved in laser melting deposition are extremely complex, including solid-liquid phase transition, gas-liquid interface coupling, the Marangoni effect, and others factors. A novel multiphase model is proposed to describe the evolution of gas-liquid-solid interface during the laser melting deposition process of Ti-6Al-4V. Based on the volume of fluid (VOF) method, a volume fraction gradient method is introduced to accurately track the motion of the free surfaces. The model can simulate alterations in temperature and flow fields during deposition, predict the ge

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Tsvetkova, E., K. Bazaleeva, A. Smirnov, and I. Chekin. "Nitriding of martensitic steel after laser melting deposition." Journal of Physics: Conference Series 1109 (November 2018): 012054. http://dx.doi.org/10.1088/1742-6596/1109/1/012054.

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7

Zheng, G., R. Laqua, P. Rey, et al. "Influence of nanoparticles on melting and solidification during a Directed Energy Deposition process analysed by simulation." IOP Conference Series: Materials Science and Engineering 1274, no. 1 (2023): 012017. http://dx.doi.org/10.1088/1757-899x/1274/1/012017.

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Abstract Additive Manufacturing is a strategic tool for industrial applications. When large size structural parts are targeted, high deposition rates are important and Directed Energy Deposition (DED) is a preferred technique. A metal wire is melted by laser light and deposit on a substrate or already solidified material. Due to the small size of the melting zone, a detailed experimental analysis of the process is very difficult and simulation is an important tool to understand the manufacturing process and the influence of process and material parameter. Here the influence of the nanocomposit

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8

Jiang, Wenbiao, M. Grant Norton, Lancy Tsung, and J. Thomas Dickinson. "Pulsed-laser deposition of polytetrafluoroethylene." Journal of Materials Research 10, no. 4 (1995): 1038–43. http://dx.doi.org/10.1557/jmr.1995.1038.

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Thin films of polytetrafluoroethylene have been deposited on amorphous substrates by the pulsed-laser deposition technique. By transmission electron microscopy, the polymer films were shown to consist of both amorphous and crystalline components. The data for the crystalline component are consistent with it being highly ordered with the long helical molecular chains aligned parallel to the film substrate interface plane. The fraction of crystalline material in the films was found to be related to the substrate temperature during deposition with the maximum amount of crystalline material occurr

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9

Lee, S. H., T. D. Kil, S. W. Han, and Y. H. Moon. "Effect of Powder Morphology on the Deposition Quality for Direct Laser Melting." Transactions of Materials Processing 25, no. 3 (2016): 195–202. http://dx.doi.org/10.5228/kstp.2016.25.3.195.

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10

Chioibasu, Diana, Alexandru Achim, Camelia Popescu, et al. "Prototype Orthopedic Bone Plates 3D Printed by Laser Melting Deposition." Materials 12, no. 6 (2019): 906. http://dx.doi.org/10.3390/ma12060906.

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Laser melting deposition is a 3D printing method usually studied for the manufacturing of machine parts in the industry. However, for the medical sector, although feasible, applications and actual products taking advantage of this technique are only scarcely reported. Therefore, in this study, Ti6Al4V orthopedic implants in the form of plates were 3D printed by laser melting deposition. Tuning of the laser power, scanning speed and powder feed rate was conducted, in order to obtain a continuous deposition after a single laser pass and to diminish unwanted blown powder, stuck in the vicinity of

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11

Mahmood, Muhammad Arif, Asif Ur Rehman, Fatih Pitir, Metin Uymaz Salamci, and Ion N. Mihailescu. "Laser Melting Deposition Additive Manufacturing of Ti6Al4V Biomedical Alloy: Mesoscopic In-Situ Flow Field Mapping via Computational Fluid Dynamics and Analytical Modelling with Empirical Testing." Materials 14, no. 24 (2021): 7749. http://dx.doi.org/10.3390/ma14247749.

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Laser melting deposition (LMD) has recently gained attention from the industrial sectors due to producing near-net-shape parts and repairing worn-out components. However, LMD remained unexplored concerning the melt pool dynamics and fluid flow analysis. In this study, computational fluid dynamics (CFD) and analytical models have been developed. The concepts of the volume of fluid and discrete element modeling were used for computational fluid dynamics (CFD) simulations. Furthermore, a simplified mathematical model was devised for single-layer deposition with a laser beam attenuation ratio inhe

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12

Mihai, S., D. Chioibasu, A. C. Popescu, et al. "Obtaining Metal-Ceramic Layers by Laser Cladding using Alumina Powder Mixtures." Annals of Dunarea de Jos University of Galati Fascicle XII Welding Equipment and Technology 35 (December 13, 2024): 25–35. https://doi.org/10.35219/awet.2024.02.

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In the paper a comparative analyse of laser cladding behaviour of metal-ceramic powder mixture was studied. The use of In718 alloy as a matrix material, with a lower melting range than SS304, allowed the reduction of the overheating of the cladding layer, for the same values of the laser deposition parameters. At the same time, the greater fluidity of the In718 alloy led to an increase in the width of the cladded layer compared to the SS304 alloy. The use of spherical alumina particles led to the improvement of the appearance and adhesion to the substrate of the laser deposited layers. The a

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13

Sing, Swee Leong, Wai Yee Yeong, Florencia Edith Wiria, et al. "Direct selective laser sintering and melting of ceramics: a review." Rapid Prototyping Journal 23, no. 3 (2017): 611–23. http://dx.doi.org/10.1108/rpj-11-2015-0178.

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Purpose This paper aims to provide a review on the process of additive manufacturing of ceramic materials, focusing on partial and full melting of ceramic powder by a high-energy laser beam without the use of binders. Design/methodology/approach Selective laser sintering or melting (SLS/SLM) techniques are first introduced, followed by analysis of results from silica (SiO2), zirconia (ZrO2) and ceramic-reinforced metal matrix composites processed by direct laser sintering and melting. Findings At the current state of technology, it is still a challenge to fabricate dense ceramic components dir

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14

Su, Pengsheng, Hao Yang, Linping Zhang, Yuewen Zhai, Yuhan Ge, and Xiaozhi Yang. "The research on the geometrical characteristics and microstructure of the cladding track of DZ125L Nickel-based alloy deposited by laser metal direct deposition." Journal of Physics: Conference Series 2819, no. 1 (2024): 012026. http://dx.doi.org/10.1088/1742-6596/2819/1/012026.

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Abstract This study investigates how variations in laser power, scanning speed, defocusing amount, and powder feeding impact the geometrical characteristics and microstructure of DZ125L nickel-based superalloy. The results show that the weld pool size increases with the rise of laser power, but higher laser power will increase the tendency of hot crack defects. With the increase of positive defocusing, the melting height and depth decrease, but the melting width rises first, then decreases and increases finally. The increase in scanning speed leads to the reduction in melting width and height,

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15

Ma, Ruixin, Zhanqi Liu, Wenbo Wang, Guojian Xu, and Wei Wang. "Laser deposition melting of TC4/TiAl functionally graded material." Vacuum 177 (July 2020): 109349. http://dx.doi.org/10.1016/j.vacuum.2020.109349.

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16

Li, Zeng Qiang, Jun Wang, and Qi Wu. "Molecular Dynamics Simulation of the Ablation Process in Ultrashort Pulsed Laser Machining of Polycrystalline Diamond." Advanced Materials Research 500 (April 2012): 351–56. http://dx.doi.org/10.4028/www.scientific.net/amr.500.351.

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The mechanism of ultrashort pulsed laser ablation of polycrystalline diamond (PCD) is investigated using molecular dynamics simulation. The simulation model provides a detailed atomic-level description of the laser energy deposition to PCD specimens and is verified by an experiment using 300 fs laser irradiation of a PCD sample. It is found that grain boundaries play an important role in the laser ablation. Melting starts from the grain boundaries since the atoms in these regions have higher potential energy and are melted more easily than the perfect diamond. Non-homogeneous melting then take

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17

Mukin, D. V., Sergei Yu Ivanov, Ekaterina A. Valdaitseva, Gleb A. Turichin, and Alexander E. Beniash. "An Analytical Model for Filler Wire Heating and Melting during Wire Feed Laser Deposition." Key Engineering Materials 822 (September 2019): 431–37. http://dx.doi.org/10.4028/www.scientific.net/kem.822.431.

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Additive technologies, in particular, wire-feed laser deposition, can significantly reduce the production cycle of manufacturing large-sized parts or parts of complex shape due to partial or complete elimination of technological operations such as casting, machining and welding. The aim of the work is to develop an analytical model of heating and melting of the filler wire during wire-feed laser deposition. The heat conduction problem was solved by the functional-analytical methods. The practical effectiveness of the functional-analytical methods with respect to computational time is several o

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18

Bruzzo, Francesco, Guendalina Catalano, Ali Gökhan Demir, and Barbara Previtali. "Surface finishing by laser re-melting applied to robotized laser metal deposition." Optics and Lasers in Engineering 137 (February 2021): 106391. http://dx.doi.org/10.1016/j.optlaseng.2020.106391.

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19

Rolink, Gesa, Sabrina Vogt, Lucia Senčekova, Andreas Weisheit, Reinhart Poprawe, and Martin Palm. "Laser metal deposition and selective laser melting of Fe–28 at.% Al." Journal of Materials Research 29, no. 17 (2014): 2036–43. http://dx.doi.org/10.1557/jmr.2014.131.

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Ur Rehman, Asif, Muhammad Arif Mahmood, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, and Ion N. Mihailescu. "Mesoscopic Computational Fluid Dynamics Modelling for the Laser-Melting Deposition of AISI 304 Stainless Steel Single Tracks with Experimental Correlation: A Novel Study." Metals 11, no. 10 (2021): 1569. http://dx.doi.org/10.3390/met11101569.

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For laser-melting deposition (LMD), a computational fluid dynamics (CFD) model was developed using the volume of fluid and discrete element modeling techniques. A method was developed to track the flow behavior, flow pattern, and driving forces of liquid flow. The developed model was compared with experimental results in the case of AISI 304 stainless steel single-track depositions on AISI 304 stainless steel substrate. A close correlation was found between experiments and modeling, with a deviation of 1–3%. It was found that the LMD involves the simultaneous addition of powder particles that

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21

Rizwan, Muhammad, and Rafi Ullah. "Microstructural evolution along the build height of laser melting deposited TA15 alloy." Journal of Physics: Conference Series 2076, no. 1 (2021): 012049. http://dx.doi.org/10.1088/1742-6596/2076/1/012049.

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Abstract This study emphasizes the TA15 alloy microstructural distribution fabricated by the laser melting deposition (LMD) technique. The motivation of the study is to analyze the microstructural features, such as grain or laths thickness, phase fraction, and porosity occurrence in the different regions along the build height, due to the complex thermal-solidification history during the laser melting deposition. During laser deposition of titanium alloy, the laser beam forms a melt pool, where the near-α and α+β alloys transform into a single β-phase, followed by rapid solidification. This pr

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Ma, Liang, Xiangwei Kong, Jingjing Liang, et al. "Thermal and Mechanical Variation Analysis on Multi-Layer Thin Wall during Continuous Laser Deposition, Continuous Pulsed Laser Deposition, and Interval Pulsed Laser Deposition." Materials 15, no. 15 (2022): 5157. http://dx.doi.org/10.3390/ma15155157.

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Direct laser deposition (DLD) is widely used in precision manufacturing, but the process parameters (e.g., laser power, scanning patterns) easily lead to changes in dimensional accuracy and structural properties. Many methods have been proposed to analyze the principle of distortion and residual stress generation, but it is difficult to evaluate the involvement of temperature and stress in the process of rapid melting and solidification. In this paper, a three-dimensional finite element model is established based on thermal–mechanical relationships in multilayer DLD. Differences in temperature

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23

Hubler, Graham K. "Pulsed Laser Deposition." MRS Bulletin 17, no. 2 (1992): 26–29. http://dx.doi.org/10.1557/s0883769400040586.

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Research on materials grown by pulsed laser deposition, or PLD, has experienced phenomenal growth since late 1987 when T. Venkatesan (one of the authors for this issue) and co-workers pointed out that extreme nonequilibrium conditions created by pulsed laser melting of YBaCuO allowed in-situ preparation of thin films of this high transition temperature (Tc) superconducting material. Since then, PLD has emerged as the primary means for high throughput deposition of high-quality superconducting thin films for research and devices. This probably came as no surprise to J.T. Cheung (another of this

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Chokshi, Avnish, Rajdeep Singh Devra, N. Rahul, Madhu Vadali, and Soumyadip Sett. "Wettability patterning of titanium surfaces through pulsed laser melting for enhanced condensation heat transfer." Journal of Physics: Conference Series 2766, no. 1 (2024): 012144. http://dx.doi.org/10.1088/1742-6596/2766/1/012144.

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Abstract Wettability engineering of different surfaces has been in the spotlight for the last few decades for enhanced condensation heat transfer in various applications. In this study, we experimentally investigated the water vapor condensation on a wettability-tailored Titanium-based (Ti-6Al-4V) grade 5 alloy. We utilize the microsecond laser to texture the surface by melting at various scanning speeds to realize a wide range of scalable surface structures. We further render these surfaces hydrophobic through chemical vapor deposition of silane at atmospheric pressure. Further water vapor co

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Rajput, Deepak, Lino Costa, Kathleen Lansford, George M. Murray, and WilliamH Hofmeister. "Laser-Assisted Deposition of Transition Metal Coatings on Graphite." REVIEWS ON ADVANCED MATERIALS SCIENCE 57, no. 2 (2018): 158–66. http://dx.doi.org/10.1515/rams-2018-0060.

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Abstract This paper reports the deposition of transition metal coatings on graphite by laser melting a pre-placed layer of powder particles using a continuous wave (CW) laser. Titanium, zirconium, and niobium coatings were successfully deposited on semiconductor grade graphite plates using the laser induced surface improvement (LISI) approach. The coatings produced were characterized using scanning electron microscope, energy dispersive spectrometry, X-ray diffraction, microhardness testing, and secondary ion mass spectrometry. Results show the formation of crack-free and dense transition meta

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Wang, Xiuhu. "Research Progress and Current Situation of Laser Additive Technology." Academic Journal of Science and Technology 2, no. 1 (2022): 186–88. http://dx.doi.org/10.54097/ajst.v2i1.984.

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Laser additive technology additive manufacturing is a manufacturing method that realizes the combination of precise "shape control" of complex structure and high-performance "controllability". After rapid solidification, it forms a surface coating or matrix structure with very low dilution. Such surface coating or structure can effectively combine metallurgical technology, and can improve the wear resistance, corrosion resistance, heat resistance, oxidation resistance and other properties of the surface of the matrix material, or in manufacturing. At present, laser additive manufacturing is wi

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Yelistratov, A. P. "Peculiarities of laser cladding with feeding of the filler tape." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 3 (October 5, 2018): 95–100. http://dx.doi.org/10.21122/1683-6065-2018-3-95-100.

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Semiconductor laser has some features that make it an efficient tool for surface treatment of metals, in particular for surface strengthening. It provides high enough concentration of energy in the heat spot, possibility to adjust process parameters in wide range. Insignificant, compare to other types of laser, energy density eliminates an extensive penetration and internal melting of the metal, which is very important for surface treatment and for the wear resistant covering.Method of metal layers deposition by feeding a metal strip and its melting by laser beam was developed. Metallurgical p

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Kolobov, Yu R., A. N. Prokhorov, S. S. Manokhin, A. Yu Tokmacheva-Kolobova, D. I. Serebryakov та V. V. Afanasiev. "Comparative study of structural phase condition and mechanical properties of Ni–Cr(X) и Fe–Cr(Х) heat-resistant alloys obtained using additive technologies". Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings), № 3 (16 вересня 2018): 76–86. http://dx.doi.org/10.17073/1997-308x-2018-3-76-86.

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The comparative study covers the features of formation, thermal stability of structure and mechanical properties of heatresistant Ni and Fe based alloys obtained using additive technologies (AT) by direct metal laser sintering, selective laser melting. It is found that alloys obtained by direct metal laser sintering have a cellular structure formed with small pores up to 200 nm in size, in contrast to alloys obtained by selective laser melting having elements with a globular and lamellar morphology and not completely melted areas as well as large pores about 5 μm in size. The study reveals a p

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Feng, Aixin, Chunlun Chen, Chengmeng Wu, Yacheng Wei, and Yu Wang. "Modeling of Laser Melting Deposition Equipment Based on Digital Twin." Metals 12, no. 2 (2022): 169. http://dx.doi.org/10.3390/met12020169.

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With the rapid development of new-generation information technologies such as big data, cloud computing, Internet of Things, and mobile internet in traditional manufacturing, the development of intelligent manufacturing (IM) is accelerating. Digital twin is an important method to achieve the goal of IM, and provides an effective means for the integrated development of design and manufacturing (R & M). In view of the problems of long installation and debugging cycles, and process parameters requiring multiple trial and error in the research and development (R & D) process of laser melti

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Li, Huidong, Yelin Xia, Min Xie, Chuan Shi, and Jianbo Lei. "Graphene nanoplatelets reinforced NiCu composite manufactured by laser melting deposition." Journal of Alloys and Compounds 929 (December 2022): 167261. http://dx.doi.org/10.1016/j.jallcom.2022.167261.

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Mahmood, Muhammad Arif, Andrei C. Popescu, and Ion N. Mihailescu. "Metal Matrix Composites Synthesized by Laser-Melting Deposition: A Review." Materials 13, no. 11 (2020): 2593. http://dx.doi.org/10.3390/ma13112593.

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Metal matrix composites (MMCs) present extraordinary characteristics, including high wear resistance, excellent operational properties at elevated temperature, and better chemical inertness as compared to traditional alloys. These properties make them prospective candidates in the fields of aerospace, automotive, heavy goods vehicles, electrical, and biomedical industries. MMCs are challenging to process via traditional manufacturing techniques, requiring high cost and energy. The laser-melting deposition (LMD) has recently been used to manufacture MMCs via rapid prototyping, thus, solving the

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Liu, Qi, Yudai Wang, Hang Zheng, Kang Tang, Huaixue Li, and Shuili Gong. "TC17 titanium alloy laser melting deposition repair process and properties." Optics & Laser Technology 82 (August 2016): 1–9. http://dx.doi.org/10.1016/j.optlastec.2016.02.013.

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Sun, Jin, and Singare Sekou. "Investigation on the Process Characteristics of Laser Cladding Fabrication Using 45 Carbon Steel Wire." Advanced Materials Research 499 (April 2012): 147–51. http://dx.doi.org/10.4028/www.scientific.net/amr.499.147.

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This study investigates the effect of wire feeding direction, angle, wire feeding speed, laser scanning speed and laser power in a high power Nd:YAG laser direct metal deposition process for single and multilayered clad/parts. The lap cladding experiment using 500 W Nd:YAG laser is designed to study the best lap rate of 45 carbon steel. The microstructure and micro hardness of the melting track shows that dense metal microstructure can be obtained using laser cladding.

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Assefa, Tadesse A., Yue Cao, Soham Banerjee, et al. "Ultrafast x-ray diffraction study of melt-front dynamics in polycrystalline thin films." Science Advances 6, no. 3 (2020): eaax2445. http://dx.doi.org/10.1126/sciadv.aax2445.

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Melting is a fundamental process of matter that is still not fully understood at the microscopic level. Here, we use time-resolved x-ray diffraction to examine the ultrafast melting of polycrystalline gold thin films using an optical laser pump followed by a delayed hard x-ray probe pulse. We observe the formation of an intermediate new diffraction peak, which we attribute to material trapped between the solid and melted states, that forms 50 ps after laser excitation and persists beyond 500 ps. The peak width grows rapidly for 50 ps and then narrows distinctly at longer time scales. We attrib

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Bruzzo, Francesco, Guendalina Catalano, Ali Gökhan Demir, and Barbara Previtali. "In-Process Laser Re-Melting of Thin Walled Parts to Improve Surface Quality after Laser Metal Deposition." Key Engineering Materials 813 (July 2019): 191–96. http://dx.doi.org/10.4028/www.scientific.net/kem.813.191.

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Laser metal deposition (LMD) is an additive manufacturing process highly adaptable to medium to large sized components with bulky structures as well as thin walls. Low surface quality of as-deposited LMD manufactured components with average roughness values (Ra) around 15-20μm is one of the main drawbacks that prevent the use of the part without the implementation of costly and time-consuming post-processes. In this work laser re-melting is applied right after LMD process with the use of the same equipment used for the deposition to treat AISI 316L thin walled parts. The surface quality improv

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Bai, Lin Rui, Guo Min Le, Jin Feng Li, Xue Liu, and Xiu Yan Li. "Effects of Process Parameters on Morphologies and Microstructures of Laser Melting Deposited V-5Cr-5Ti Alloys." Materials Science Forum 913 (February 2018): 227–34. http://dx.doi.org/10.4028/www.scientific.net/msf.913.227.

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V-Cr-Ti alloys are promising structural materials for future nuclear systems. In this study, a laser melting deposition process has been applied to the fabrications of V-5Cr-5Ti alloys. Laser powers of 1200W, 1400W and 1600W, scanning speeds of 400 mm/min and 600 mm/min, and scanning strategies of single directional scanning and dual directional scanning have been applied to investigate the effects on the morphologies and microstructures of formed individual deposits and thin walls. The dual directional scanning is favored for fabricating thin walls with regular shape, comparing to the single

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Angelastro, Andrea, Sabina L. Campanelli, Giuseppe Casalino, Antonio D. Ludovico, and Simone Ferrara. "A Methodology for Optimization of the Direct Laser Metal Deposition Process." Key Engineering Materials 473 (March 2011): 75–82. http://dx.doi.org/10.4028/www.scientific.net/kem.473.75.

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Direct Laser Metal Deposition (DLMD) is actually one of the most attractive techniques in the group of Material Accretion Manufacturing (MAM) processes. In fact, the DLMD technology is able to realize, to repair and restore, objects, moulds and tools, directly from the 3D CAD model in a rapid and economic way. A great variety of metals, including those very difficult to work with the conventional techniques, can be shaped in a large number of complex geometries. This technique is also well suited to produce very hard coatings. The metallic parts, which are obtained through melting coaxially fe

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Cui, X., S. Zhang, C. H. Zhang, J. Chen, J. B. Zhang, and S. Y. Dong. "A comparison on microstructure features of 24CrNiMo low alloy steel prepared by selective laser melting and laser melting deposition." Vacuum 191 (September 2021): 110394. http://dx.doi.org/10.1016/j.vacuum.2021.110394.

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Hagemann, Simon, Alexander Mattes, and Marc-André Weber. "Kostenbewertung des Laser-Pulver-Auftragsschmelzens." Zeitschrift für wirtschaftlichen Fabrikbetrieb 119, no. 7-8 (2024): 525–28. http://dx.doi.org/10.1515/zwf-2024-1103.

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Abstract Using an additively manufactured demonstrator, this article discusses the influence of production-related challenges of laser powder deposition melting on the manufacturing costs of the component. In particular, the effort required to determine a suitable manufacturing strategy must be considered in the cost calculation, as this accounts for a substantial proportion of the manufacturing costs. Neglecting this effort in the calculation can lead to considerable economic loss.

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Schaible, Jonathan, David Hausch, Thomas Schopphoven, and Constantin Häfner. "Deposition strategies for generating cuboid volumes using extreme high-speed directed energy deposition." Journal of Laser Applications 34, no. 4 (2022): 042034. http://dx.doi.org/10.2351/7.0000770.

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Extreme high-speed directed energy deposition (EHLA) is a variant of directed energy deposition (DED-LB) developed at Fraunhofer ILT in cooperation with RWTH Aachen University. Because of a powder gas jet setup that is aimed at melting particles in the laser beam before they enter the melting pool, high process speeds of up to several hundred meters per minute and a layer thickness as thin as 25 μm can be achieved. EHLA is generally applied for rotationally symmetric coating applications. In previous experiments on a prototype machine of ponticon GmbH, EHLA was used for building up dense volum

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Zhang, Kai, and Xiao Feng Shang. "Microstructure and Properties of Thin-Wall Part by Laser Metal Deposition Shaping." Materials Science Forum 675-677 (February 2011): 563–66. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.563.

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Laser additive direct deposition of metals is a new rapid manufacturing technology, which combines with computer aided design, laser cladding and rapid prototyping. The advanced technology can build fully-dense metal components directly from CAD files without a mould or tool. With this technology, a promising rapid manufacturing system called “Laser Metal Deposition Shaping (LMDS)” is being constructed and developed. Through the LMDS technology, fully-dense and near-net shaped metallic parts can be directly obtained through melting coaxially fed powder with a laser. Typically, the microstructu

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Bi, Jian, Hongxin Sun, and Yan Wen. "Research on microstructure variation of laser melting deposition Ti-6Al-4V under electroshocking treatment." Journal of Physics: Conference Series 2566, no. 1 (2023): 012095. http://dx.doi.org/10.1088/1742-6596/2566/1/012095.

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Abstract In this work, electroshocking treatment (EST) was applied to Ti-6Al-4V prepared by laser melting deposition (LMD), and the microstructure and grain size were investigated. The size of the α phase was reduced, and the content increased after the EST treatment.

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Zahiri, Saden H., Stefan Gulizia, and Leon Prentice. "An Overview of Cold Spray Additive Technology in Australia for Melt-less Manufacture of Titanium." MATEC Web of Conferences 321 (2020): 03011. http://dx.doi.org/10.1051/matecconf/202032103011.

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The difficulty in significantly reducing the cost of titanium products is partly related to the high cost of manufacturing. This includes additive manufacturing; e.g. Electron Beam Melting (EBM) and Selective Laser Melting (SLM), as well as traditional approaches that are based on a melting process. In particular, the cost of titanium powder has placed limits on the application of additive manufacturing approaches that involve melting to broader commercial applications beyond military, aerospace and implants. More than a decade ago, Australia adopted cold spray technology as a meltless additiv

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Erdakov, Ivan, Lev Glebov, Kirill Pashkeev, et al. "Effect of the Ti6Al4V Alloy Track Trajectories on Mechanical Properties in Direct Metal Deposition." Machines 8, no. 4 (2020): 79. http://dx.doi.org/10.3390/machines8040079.

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The TiAl6V4 alloy is widely used in selective laser melting and direct laser melting. In turn, works devoted to the issue of how the track stacking scheme affects the value of mechanical properties is not enough. The influence of the Ti6Al4V alloy track trajectories on the microstructure and mechanical properties during direct laser deposition is studied in this article for the first time. The results were obtained on the influence of «parallel» and «perpendicular» technique of laying tracks in direct laser synthesis. All studied samples have a microstructure typical of the hardened two-phase

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Vinnakota, Raj K., and Dentcho A. Genov. "Surface plasmon induced enhancement in selective laser melting processes." Rapid Prototyping Journal 25, no. 6 (2019): 1135–43. http://dx.doi.org/10.1108/rpj-06-2018-0146.

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Purpose Selective laser melting (SLM) is an advanced rapid prototyping or additive manufacturing technology that uses high power density laser to fabricate metal/alloy components with minimal geometric constraints. The SLM process is multi-physics in nature and its study requires development of complex simulation tools. The purpose of this paper is to study – for the first time, to the best of the authors’ knowledge – the electromagnetic wave interactions and thermal processes in SLM based dense powder beds under the full-wave formalism and identify prospective metal powder bed particle distri

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Trevisan, Francesco, Flaviana Calignano, Alberta Aversa, et al. "Additive manufacturing of titanium alloys in the biomedical field: processes, properties and applications." Journal of Applied Biomaterials & Functional Materials 16, no. 2 (2017): 57–67. http://dx.doi.org/10.5301/jabfm.5000371.

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The mechanical properties and biocompatibility of titanium alloy medical devices and implants produced by additive manufacturing (AM) technologies – in particular, selective laser melting (SLM), electron beam melting (EBM) and laser metal deposition (LMD) – have been investigated by several researchers demonstrating how these innovative processes are able to fulfil medical requirements for clinical applications. This work reviews the advantages given by these technologies, which include the possibility to create porous complex structures to improve osseointegration and mechanical properties (b

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Schneider, J., A. Seidel, J. Gumpinger, et al. "Advanced manufacturing approach via the combination of selective laser melting and laser metal deposition." Journal of Laser Applications 31, no. 2 (2019): 022317. http://dx.doi.org/10.2351/1.5096123.

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Petrat, Torsten, Robert Kersting, Benjamin Graf, and Michael Rethmeier. "Embedding electronics into additive manufactured components using laser metal deposition and selective laser melting." Procedia CIRP 74 (2018): 168–71. http://dx.doi.org/10.1016/j.procir.2018.08.071.

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Saini, Vijay Kumar, Jinoop Arackal Narayanan, Niraj Sinha, and Christ Prakash Paul. "Preliminary Parametric Investigations into Macro-Laser Polishing of Laser-Directed Energy Deposition of SS 304L Bulk Structures." Crystals 13, no. 11 (2023): 1604. http://dx.doi.org/10.3390/cryst13111604.

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The higher surface roughness of laser-directed energy deposition (LDED)-built components necessitates advanced and sustainable surface quality enhancement techniques like laser polishing. In the present work, a parametric study involving experimental investigation and numerical analysis is conducted to determine the effect of macro-laser polishing on LDED-built SS 304L structures. A thermophysical model is developed to simulate the effect of laser power and scan speed on the melt pool depth of the LDED-built samples. The simulated melt pool depth is compared with experimental results and is fo

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Kotoban, Dmitry Valerievich, Aleksey Petrovich Nazarov, and Igor Vladimirovich Shishkovsky. "Comparative Study of Selective Laser Melting and Direct Laser Metal Deposition of Ni₃Al Intermetallic Alloy." Materials Science Forum 834 (November 2015): 103–11. http://dx.doi.org/10.4028/www.scientific.net/msf.834.103.

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The Ni3Al intermetallics involve more attention because of inherent material properties especially interesting in high temperature application. In this study the Selective laser melting (SLM) and Direct laser metal deposition (DLMD) are used to manufacture the single-tracks and layers. For the comparison of the methods, the optical microscopy, SEM, XRD and EDX microelement analysis were involved. The materials show no significant differences but each SLM and DLMD have the target application.

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