Relevant bibliographies by topics / Melting process on the laser

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Melting process on the laser'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Melting process on the laser"

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Sung, M. Y., B. D. Joo, S. H. Kim, and Y. H. Moon. "Process Analysis of Melting Behaviors in Selective Laser Melting Process." Transactions of Materials Processing 19, no. 8 (December 1, 2010): 517–22. http://dx.doi.org/10.5228/kstp.2010.19.8.517.

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Hagedorn, Yves, and Felix Pastors. "Process Monitoring of Laser Beam Melting." Laser Technik Journal 15, no. 2 (April 2018): 54–57. http://dx.doi.org/10.1002/latj.201800009.

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van Belle, Laurent, and Alban Agazzi. "Inverse Thermal Analysis of Melting Pool in Selective Laser Melting Process." Key Engineering Materials 651-653 (July 2015): 1519–24. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.1519.

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The Selective Laser Melting (SLM) process of metallic powder is an additive technology. It allows the production of complex-shaped parts which are difficult to obtain by conventional methods. The principle is similar to Selective Laser Sintering (SLS) process: it consists, from an initial CAD model, to create the desired part layer by layer. The laser scans a powder bed of 40 μm thick. The irradiated powder is instantly melted and becomes a solid material when the laser moves away. A new layer of powder is left and the laser starts a new cycle of scanning. The sudden and intense phase changing involves high thermal gradients which induce contraction and expansion cycles in the part. These cycles results in irreversible plastic strains. The presence of residual stresses in the manufactured part can damage the mechanical properties, such as the fatigue life. This study focuses on the thermal and mechanical modelling of the SLM process. One of the key points of the mechanical modelling is the determination of the heat source generated by the laser in order to predict residual stresses. This work is divided in three parts. In a first part, an experimental protocol is established in order to measure the temperature variation during the process. In the second part, a thermal model of the process is proposed. Finally, an inverse method to determine the power and the shape of the heat source is developed. Experimental and computational results are fitted. The influence of several geometries of the heat source is investigated.
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Thombansen, Ulrich, Alexander Gatej, and Milton Pereira. "Process observation in fiber laser–based selective laser melting." Optical Engineering 54, no. 1 (October 8, 2014): 011008. http://dx.doi.org/10.1117/1.oe.54.1.011008.

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Sakai, Yasunori, Wataru Ichikawa, and Tomohisa Tanaka. "Novel laser melting stir process for microwelding." Manufacturing Letters 25 (August 2020): 6–9. http://dx.doi.org/10.1016/j.mfglet.2020.05.004.

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Sukumar, S., and S. P. Kar. "Parametric Analysis of Pulsed Laser Melting Process." IOP Conference Series: Materials Science and Engineering 338 (March 2018): 012009. http://dx.doi.org/10.1088/1757-899x/338/1/012009.

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7

Xiao, Hai Bing. "Research on Laser Oxidation Melting Cutting Process of Automobile Carbon Parts." Applied Mechanics and Materials 778 (July 2015): 159–63. http://dx.doi.org/10.4028/www.scientific.net/amm.778.159.

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This paper deals with the study of automobile parts laser cutting process and high power laser oxidation melting cutting technology. Laser oxidation melting cutting and perforation technology was studied and laser cutting process was established. Take automobile part back end plate for example, back end plate and the material is carbon steel, the CAD/CAM simulation software was used, reasonable processing parameters, cutting parameters and perforation parameters were designed. The experimental results show that laser oxidation cutting is very effective method for automobile parts of carbon steel. The laser oxidation laser cutting technical problems and carbon materials processing technology were solved and improvement measures were summarized for the high laser oxidation melting cutting.
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C. Tseng, W., and J. N. Aoh. "Experimental Validation of a Laser Heat Source Model for Laser Melting and Laser Cladding Processes." Open Mechanical Engineering Journal 8, no. 1 (October 9, 2014): 370–81. http://dx.doi.org/10.2174/1874155x01408010370.

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Selective laser melting (SLM) and laser cladding are laser additive manufacturing methods that have been developed for application to the near-net-shape process and 3D printing. The temperature distributions and track profiles of SLM and clad layers require additional in-depth investigation to optimize manufacturing processes. This research involved developing a tailored laser heat source model that contains a comprehensive selection of laser beam characteristics and can be used in finite element analysis of the laser melting process. This paper presents a systematic experimental validation of the applicability of the proposed laser heat source model to single-track Nd:YAG and CO2 laser melting simulations. The evolution of the melt pool isotherms and the variation in track profiles caused by adjusting the laser power and scanning speed were numerically predicted and experimentally verified. Appropriate process parameters and the threshold power for continuous track layer formation were determined. The balling phenomenon on preplaced powder was observed at power levels below the threshold values. Nd:YAG laser melting resulted in a wide and shallow track profile, which was adequately predicted using the numerical simulation. CO2 laser melting resulted in a triangular track profile, which deviated slightly from the finite element prediction. The results indicated a high level of consistency between the experimental and the numerical results regarding track depth evolution, whereas the numerically predicted track width evolution deviated slightly from the experimentally determined track width evolution. This parametric laser melting study validated the applicability of the proposed laser heat source model in numerical analysis of laser melting processes such as SLM and laser cladding.
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Ridolfi, Maria Rita, Paolo Folgarait, and Andrea Di Schino. "MODELLING OF SELECTIVE LASER MELTING PROCESS FOR ADDITIVE MANUFACTURING." Acta Metallurgica Slovaca 26, no. 1 (March 18, 2020): 7–10. http://dx.doi.org/10.36547/ams.26.1.525.

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The proposed model is a numerical tool for designing processing windows suitable to metal alloy. The model is validated fitting experimental measures of track width, depth and cross sectional area from three literature sources. Effective liquid pool thermal conductivity laser absorptivity and depth of application of laser energy are here considered as fitting parameters. Laser absorptivity and depth of application of laser energy result to rise almost linearly with increasing specific energy.. The obtained results give confidence about the possibility of using the model as a predicting tool after further calibration on a wider range of metal alloys.
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Lykov, P. A., E. V. Safonov, and A. M. Akhmedianov. "Selective Laser Melting of Copper." Materials Science Forum 843 (February 2016): 284–88. http://dx.doi.org/10.4028/www.scientific.net/msf.843.284.

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In this work the selective laser melting (SLM) of pure copper powder was studied. Because of low laser radiation absorption and high thermal conductivity it is very difficult to organize stable SLM process for copper. Five 10x10x5 mm specimens were fabricated by using different process parameters (scanning speed, point distance, exposure time, scanning strategy). The structure of fabricated specimens was studied by scanning electron microscopy of polished cross-sections. The tensile test was carried out for SLM regime with the lowest porosity.
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Dissertations / Theses on the topic "Melting process on the laser"

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Ashton, I. "Investigations into process monitoring for selective laser melting." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3004532/.

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Suchý, Jan. "Zpracování vysokopevnostní hliníkové slitiny AlSi9Cu3 technologií selective laser melting." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319259.

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Method selective laser melting can produce metal parts by using 3D printing. This diploma thesis deals with the influence of process parameters on the workability of AlSi9Cu3 high-strength aluminum alloy using selective laser melting. The theoretical part deals with relations between process parameters and identifies phenomena occurring during the processing of metals by this technology. It also deals with conventionally manufactured aluminum alloy AlSi9Cu3. In the work, material research is performed from single tracks tests, porosity tests with different process parameters and mechanical testing. Here are showing the trends of porosity change at scanning speed, laser power, individual laser stop distance, bulk energy, and powder quality. The workability of the material can be judged by the degree of relative density achieved. Simultaneously the values of the achieved mechanical properties of the selected process parameters are presented. The data obtained are analyzed and compared with literature.
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Kurian, Sachin. "Process-Structure-Property Relationship Study of Selective Laser Melting using Molecular Dynamics." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/104115.

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Selective Laser Melting (SLM), a laser-based Additive Manufacturing technique has appealed to the bio-medical, automotive, and aerospace industries due to its ability to fabricate geometrically complex parts with tailored properties and high-precision end-use products. The SLM processing parameters highly influence the part quality, microstructure, and mechanical properties. The process-structure-property relationship of the SLM process is not well-understood. In the process-structure study, a quasi-2D model of Micro-Selective Laser Melting process using molecular dynamics is developed to investigate the localized melting and solidification of a randomly-distributed Aluminum nano-powder bed. The rapid solidification in the meltpool reveals the cooling rate dependent homogeneous nucleation of equiaxed grains at the center of the meltpool. Long columnar grains that spread across three layers, equiaxed grains, nano-pores, twin boundaries, and stacking faults are observed in the final solidified nanostructure obtained after ten passes of the laser beam on three layers of Aluminum nano-powder particles. In the structure-property study, the mechanical deformation behavior of the complex cellular structures observed in the SLM-fabricated 316L Stainless Steel is investigated by performing a series of molecular dynamics simulations of uniaxial tension tests. The effects of compositional segregation of alloying elements, distribution of austenite and ferrite phases in the microstructure, subgranular cell sizes, and pre-existing (grown in) nano-twins on the tensile characteristics of the cellular structures are investigated. The highest yield strength is observed when the Nickel concentration in the cell boundary drops very low to form a ferritic phase in the cell boundary. Additionally, the subgranular cell size has an inverse relationship with mechanical strength, and the nano-twinned cells exhibit higher strength in comparison with twin-free cells.
Master of Science
Additive Manufacturing's (AM) rise as a modern manufacturing paradigm has led to the proliferation in the number of materials that can be processed, reduction in the cost and time of manufacturing, and realization of complicated part geometries that were beyond the capabilities of conventional manufacturing. Selective Laser Melting (SLM) is a laser-based AM technique which can produce metallic parts from the fusion of a powder-bed. The SLM processing parameters greatly influence the part's quality, microstructure, and properties. The process-structure-property relationship of the SLM process is not well-understood. In-situ experimental investigation of the physical phenomena taking place during the SLM process is limited because of the very small length and time scales. Computational methods are cost-effective alternatives to the challenging experimental techniques. But, the continuum-based computational models are ineffective in modeling some of the important physical processes such as melting, nucleation and growth of grains during solidification, and the deformation mechanisms at the atomistic scale. Atomistic simulation is a powerful method that can offset the limitations of the continuum models in elucidating the underlying physics of the SLM process. In this work, the influence of the SLM process parameters on the microstructure of the Aluminum nano-powder particles undergoing μ-SLM processing and the mechanical deformation characteristics of the unique cellular structures observed in the SLM-fabricated 316L stainless steel are studied using molecular dynamics simulations. Ten passes of the laser beam on three layers of Aluminum nano-powder particles have unfolded the formation mechanisms of a complex microstructure associated with the SLM process. The study on the deformation mechanisms of 316L stainless steel has revealed the contribution of the cellular structures to its superior mechanical properties.
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Siva, Prasad Himani. "Selective Laser Melting of Ni-based Superalloys: High Speed Imaging and Process Optimisation." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-59857.

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Additive manufacturing is the process of joining or adding material to build an object from 3D model data. Selective Laser Melting (SLM) is an additive manufacturing technology that generates components layer by layer. Though it is already being used in the industry, some aspects are not very well understood. In this thesis, high speed imaging is used to gain new insights about the interaction of laser light with material. A number of parameter sets for high e ciency and good surface finish were found for a nickel based superalloy, HastelloyXTM. Three setups are discussed: single laser pulse interaction with powder, low speed SLM and high speed SLM. It was found, that in order to observe powder behaviour, a narrow bandwidth illumination source is necessary. The low speed SLM process was imaged clearly and revealed three stages of the process, i.e. powder redistribution, melting and drop incorporation. In contrast, the high speed process included vertical powder displacement. Influence of various process parameters is also discussed.
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Liu, Bochuan. "Further process understanding and prediction on selective laser melting of stainless steel 316L." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13550.

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Additive Manufacturing (AM) is a group of manufacturing technologies which are capable to produce 3D solid parts by adding successive layers of material. Parts are fabricated in an additive manner, layer by layer; and the geometric data can be taken from a CAD model directly. The main revolutionary aspect of AM is the ability of quickly producing complex geometries without the need of tooling, allowing for greater design freedom. As one of AM methods, Selective Laser Melting (SLM) is a process for producing metal parts with minimal subtractive post-processing required. It relies on the generation and distribution of laser generated heat to raise the temperature of a region of a powder bed to above the melting point. Due to high energy input to enable full melting of the powder bed materials, SLM is able to build fully dense metal parts without post heat treatment and other processing. Successful fabrications of parts by SLM require a comprehensive understanding of the main process controlling parameters such as energy input, powder bed properties and build conditions, as well as the microstructure formation procedure as it can strongly affect the final mechanical properties. It is valuable to control the parts' microstructure through controlling the process parameters to obtain acceptable mechanical properties for end-users. In the SLM process, microstructure characterisation strongly depends on the thermal history of the process. The temperature distribution in the building area can significantly influence the melting pool behaviour, solidification process and thermal mechanical properties of the parts. Therefore, it is important to have an accurate prediction of the temperature distribution history during the process. The aim of this research is to gain a better understanding of process control parameters in SLM process, and to develop a modelling methodology for the prediction of microstructure forming procedure. The research is comprised of an experiment and a finite element modelling part. Experimentation was carried out to understand the effect of each processing control parameters on the final part quality, and characterise the model inputs. Laser energy input, build conditions and powder bed properties were investigated. Samples were built and tested to gain the knowledge of the relationship between samples' density and mechanical properties and each process control factor. Heat transfer model inputs characterisation, such as defining and measuring the material properties, input loads and boundary conditions were also carried out via experiment. For the predictive modelling of microstructure, a methodology for predicting the temperature distribution history and temperature gradient history during the SLM process has been developed. Moving heat source and states variable material properties were studied and applied to the heat transfer model for reliable prediction. Multi-layers model were established to simulate the layer by layer process principles. Microstructure was predicted by simulated melting pool behaviour and the history of three dimensional temperature distribution and temperature gradient distribution. They were validated by relevant experiment examination and measurement.
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Zvoníček, Josef. "Vývoj procesních parametrů pro zpracování hliníkové slitiny AlSi7 technologií Selective Laser Melting." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-444404.

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The diploma thesis deals with the study of the influence of process parameters of AlSi7Mg0.6 aluminum alloy processing using the additive technology Selective Laser Melting. The main objective is to clarify the influence of the individual process parameters on the resulting porosity of the material and its mechanical properties. The thesis deals with the current state of aluminum alloy processing in this way. The actual material research of the work is carried out in successive experiments from the welding test to the volume test with subsequent verification of the mechanical properties of the material. Material evaluation in the whole work is material porosity, stability of individual welds, hardness of the material and its mechanical properties. The results are compared with the literature.
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Robinson, Joseph. "Optimisation of the selective laser melting process for the production of hybrid orthopaedic devices." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/18053/.

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This thesis details investigations of residual stress in selective laser melting (SLM). SLM is an Additive Manufacturing (AM) process that builds parts by melting consecutive powder layers using a fibre laser. Residual stresses caused by high thermal gradients create deformation leading to cracking of the final components. This deformation and cracking limits the geometries that can be built and the materials from which they can be manufactured using the process. Previous research on residual stresses has shown contradictory results mainly due to the differences in measurement methods, processing parameters and materials used. In order to address this shortcoming this study focused on the use of Titanium and its alloys for the production of medical devices. The residual stress in final components was measured using several methodologies: deflection, hole drilling and EDM cutting followed by FEA (the contour method). These measurement methods allowed the comparison of commercially available scanning strategies to be investigated. Results showed that the chequerboard technique commonly cited in the literature as reducing residual stress had little benefit over the use of more standard rastered vectors scanned orthogonally to the previous layer vectors. Using this suite of techniques the principal residual stress was determined to be parallel to the scan vectors, contradicting a number of previous studies. A simple finite element model was developed enabling the comparison of measured profiles with analytical results. This model was then extended to allow the evaluation of new techniques aimed at reducing the levels of residual stress. Further experimentation showed that the use of increased bed temperatures reduced the residual stress in components even at small increases in temperature. Hatch angle rotation as a method for increasing part quality was also tested. Eighteen angles, specifically chosen, using analytical models were investigated to define the optimum angle. No statistically significant difference was found in density, surface finish or strength for any of the tested angles. To minimise residual stress it was concluded that unidirectional scan vectors should be avoided and that there was little difference between the other rotation angles. In order to measure precisely when and where the residual stresses were generated in the process an experimental apparatus was designed which allowed in-situ measurements of stresses and provided an understanding of the transient stresses in components as they are built. This residual stress dynamometer (RSD) offered state of the art spatial and temporal resolution. This experimental equipment allowed the conclusions drawn from the previous post process techniques to be confirmed on a layer by layer manner SLM has also been shown to be a viable technique for the production of hybrid orthopaedic devices that encompass both porous and solid volumes, this work considered the effect that optimisations on the solid volume of the part, to remove residual stresses, would have on the porous volumes. Techniques were developed which made the porous structures less sensitive to part orientation through the removal of broken links at the surface. Further additional features where then added to improve the roughness of the surface to increase initial fixation of an implant.
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Wang, Xiqian. "Improving the microstructure, mechanical properties & process route in selective laser melting of nickel-superalloys." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7671/.

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Selective Laser Melting (SLM) was used to develop a manufacturing route for high temperature aero-engine components from the Ni-superalloys CM247LC, focussing on improving the microstructure, mechanical properties, and processing route. A statistical design of experiments approach was applied to determine the optimum processing parameters leading to the least structural defects. High-speed imaging was used to observe the melt pool during SLM. Microstructural investigations showed that certain elements were selectively evaporated, then condensed in the form of particles. These were then re-incorporated within the build. Cracks and pores were found in SLM-processed samples and these were sometimes associated with these condensed particles. Residual stresses, developed within SLMprocessed samples, were measured using neutron diffraction, highlighting the role of the scanning strategy on the residual stress development. The solidification microstructures formed in SLM-processed samples were characterised using analytical scanning and transmission electron microscopy. Cells, with identical orientation and 700 nm in width containing a high density of very small γʹ (up to 20 nm), were observed. Cell boundaries and grain boundaries were found to contain high densities of dislocations, Hf/Ti/Ta/W-rich precipitates and γ/γʹ eutectic containing larger particles of γʹ up to about 50 nm. The cooling rate derived from the cell size was estimated at 106 K/s, but the cooling rate, derived from the size of γʹ within grains was estimated as 104 K/s based on Jominy end-quench test. SLM-processed samples also showed high yield strength due to their fine microstructures, alongside poor ductility resulting from the presence of cracks. Post-SLM heat treatments were used to reduce the extent of cracking and porosity by Hot Isostatic Pressing (HIPping) and also to promote the precipitation of γʹ. These treatments improve the ductility in vertically built samples, but the ductility in horizontally built samples remains low. Though SLM-processed samples subjected to post-processing heat treatments showed poor creep strength, this was improved by HIPping. A novel approach for netshape SLM/HIP processing was assessed for manufacturing a blisk using powder CM247LC or dual materials.
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Prehradná, Jana. "Úprava oxidačních vlastností TiAl intermetalik přetavováním povrchu v řízené atmosféře." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231717.

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Rešerše se zabývá teorií technologického způsobu zpracování materiálů, tzv. povrchového tavení. V první části rešerše je popsána samotná technologie a základní parametry ovlivňující proces tavení. Ve druhé části je uvedeno srování dvou základních typů laserů, a to Nd:YAG a CO2 laser. CO2 laser byl použit v případě našeho experimentu. Třetí část se zabývá vlastnostmi TiAl intermetalických slitin, především jejich fázemi -TiAl a -Ti3Al. Na závěr teoretické části je zmíněna oxidace TiAl intermetalických slitin. Experimentální část je věnována přetavování povrchu slitiny Ti-46Al-0,7Cr-0,1Si-7Nb-0,2Ni, a to v ochranné atmosféře dusíku. Tato část obsahuje výsledky několika experimentů, na jejichž základě bylo nutné stanovit potřebné parametry pro požadovaný proces tavení. Posledním krokem experimentu byla snaha o zvýšení hmotnosti vzorků v důsledku následné oxidace.
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Aris, Mohd Shiraz. "The development of active heat transfer enhancement devices from shape memory alloys in a selective laser melting process." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526785.

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Books on the topic "Melting process on the laser"

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Lau, Marcus. Laser Fragmentation and Melting of Particles. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-14171-4.

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Yao, Jianhua, Bo Li, and Liang Wang. Advanced Laser Process for Surface Enhancement. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9659-9.

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Sing, Swee Leong. Selective Laser Melting of Novel Titanium-Tantalum Alloy as Orthopaedic Biomaterial. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2724-7.

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Zhu, Xu-Ran. Numerical study of the electromagnetic semi-levitation melting process. Birmingham: University of Birmingham, 1997.

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Mahamood, Rasheedat Modupe. Laser Metal Deposition Process of Metals, Alloys, and Composite Materials. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-64985-6.

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Winefordner, James D. Laser induced breakdown spectroscopy for elemental process monitoring of slurry streams: Final report. Bartow, Fla. (1855 W. Main St., Bartow 33830): Florida Institute of Phosphate Research, 2000.

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Miller, R. E. Batch pretreatment process technology for abatement of emissions and conservation of energy in glass melting furnaces: Phase IIA, process design manual. Cincinnati, OH: U.S. Environmental Protection Agency, Water Engineering Research Laboratory, 1985.

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Blunden, Simon. Melting down the steel town: Corby community and culture in the process of recovery 1980-1990. Sheffield: Sheffield City Polytechnic, Department of Historical and Critical Studies, 1990.

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Colloque international sur le soudage et la fusion par faisceaux d'électrons et laser (5e 1993 La Baule, Loire-Atlantique, France). 5ème Colloque international sur le soudage et la fusion par faisceaux d'électrons et laser =: 5th International Conference on Welding and Melting by Electron and Laser Beams, La Baule, 14-18 juin 1993. [Saclay]: Commissariat à l'énergie atomique, 1993.

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International School of Coherent Optics. (9th 1989 Uzhgorod, USSR). Intense laser phenomena and related subjects: IX International School on Coherent Optics, Uzhgorod, USSR, 15-20 May 1989. Edited by Ivanov M. Yu and Kiyan I. Yu. Singapore: World Scientific, 1991.

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Book chapters on the topic "Melting process on the laser"

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Uhlmann, Eckart, Rodrigo Pastl Pontes, and André Bergmann. "High level process map for Selective Laser Melting / High level process map for Selective Laser Melting." In Rapid.Tech – International Trade Show & Conference for Additive Manufacturing, edited by Wieland Kniffka, Michael Eichmann, and Gerd Witt, 149–58. München: Carl Hanser Verlag GmbH & Co. KG, 2016. http://dx.doi.org/10.3139/9783446450608.012.

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Antony, Kurian, and T. R. Rakeshnath. "Study on Rayleigh–Bénard Convection in Laser Melting Process." In 3D Printing and Additive Manufacturing Technologies, 39–44. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0305-0_4.

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Lü, L., J. Y. H. Fuh, and Y. S. Wong. "Metal-Based System via Laser Melting." In Laser-Induced Materials and Processes for Rapid Prototyping, 143–86. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1469-5_6.

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Huber, Marc, Jonas Ess, Martin Hartmann, Andreas Würms, Robin Rettberg, Thomas Kränzler, and Kaspar Löffel. "Process Setup for Manufacturing of a Pump Impeller by Selective Laser Melting." In Industrializing Additive Manufacturing - Proceedings of Additive Manufacturing in Products and Applications - AMPA2017, 252–63. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66866-6_24.

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Clement, Catherine Dolly, Julie Masson, and Abu Syed Kabir. "On the Heat Treatment of AlSi10Mg Fabricated by Selective Laser Melting Process." In TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings, 425–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36296-6_40.

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Kleszczynski, Stefan, Joschka zur Jacobsmühlen, Jan T. Sehrt, and Gerd Witt. "Mechanical Properties of Laser Beam Melting Components Depending on Various Process Errors." In IFIP Advances in Information and Communication Technology, 153–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-41329-2_16.

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Zhao, J. F., Yong Li, and L. Wang. "Nano-SiC Particles Reinforced Plasma Sprayed WC-Co Coating by Laser Melting Process." In Advances in Machining & Manufacturing Technology VIII, 575–78. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-999-7.575.

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Hsu, Tzu-Hou, Kai-Chun Chang, Yao-Jen Chang, I.-Ting Ho, Sammy Tin, Chen-Wei Li, Koji Kakehi, et al. "Effect of Carbide Inoculants Additions in IN718 Fabricated by Selective Laser Melting Process." In Superalloys 2020, 982–89. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51834-9_96.

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Ding, Linshan, Li Zhang, Chunhong Ruan, and Zaizhuo Jiang. "Transient Finite Elements Analysis of Thin-Walled Structure in Selective Laser Melting Process." In Advances in Intelligent Systems and Computing, 1231–40. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95588-9_106.

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Liu, Bin, Le Tan, Zhanyong Zhao, Hao Zhang, Jing Li, Peikang Bai, Jianhong Wang, and Yahui Cheng. "Temperature Distribution Laws During Selective Laser Melting Process of Nickel Base Alloy GH4169." In Lecture Notes in Mechanical Engineering, 335–43. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0107-0_31.

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Conference papers on the topic "Melting process on the laser"

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Brüning, Heiko. "Robusteness of the laser melting process." In ICALEO® 2013: 32nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2013. http://dx.doi.org/10.2351/1.5062978.

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Thombansen, U., and P. Abels. "Process observation in selective laser melting (SLM)." In SPIE LASE, edited by Friedhelm Dorsch. SPIE, 2015. http://dx.doi.org/10.1117/12.2079475.

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Молотков, Андрей, Andrey Molotkov, Ольга Третьякова, and Ol'ga Tret'yakova. "Visualization of the process of selective laser melting." In 29th International Conference on Computer Graphics, Image Processing and Computer Vision, Visualization Systems and the Virtual Environment GraphiCon'2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/graphicon-2019-1-78-81.

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This paper deals with the visualization of the previously simulated by the authors selective laser melting process in order to simplify the analysis of the results and the selection of technological parameters of the additive production unit. The article presents two possible approaches for visualization of the selective laser fusion process and supported functions which simplify the work and research in the framework of the new technology. The implemented approaches will reduce the requirements for the level of training of specialists working on Russian-made equipment. In the two-dimensional visualization mode, the emphasis is on the possibility of a more detailed study of the process. In a three-dimensional there is the ability of the broader scope and to see the big picture. Several implemented principles of geometry simplification for visual representation are considered. The advantages and disadvantages of the work done and the results obtained are presented.
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Fateri, Miranda, Andreas Gebhardt, and Maziar Khosravi. "Numerical Investigation of Selective Laser Melting Process for 904L Stainless Steel." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86964.

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Selective Laser Melting process (SLM) is an important manufacturing method for producing complex geometries which allows for creation of full density parts with similar properties as the bulk material without extensive post processing. In SLM process, laser power, beam focus diameter, and scanning velocity must be precisely set based on the material properties in order to produce dense parts. In this study, Finite Element Analysis (FEA) method is employed in order to simulate and analyze a single layer of 904L Stainless Steel. A three-dimensional transient thermal model of the SLM process based on phase change enthalpy, irradiation scattering, and heat conductivity of powder is developed. The laser beam is modeled as a moving heat flux on the surface of the layer using a fine mesh which allows for a variation of the shape and distribution of the beam. In this manner, various Gaussian distributions are investigated and compared against single and multi-element heat flux sources. The melt pool and temperature distribution in the part are numerically investigated in order to determine the effects of varying laser intensity, scanning velocity as well as preheating temperature. The results of the simulation are verified by comparing the melt pool width as a function of power and velocity against the experimentally obtained results. Lastly, 3D objects are fabricated with a SLM 50 Desktop machine using the acquired optimized process parameters.
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Asadi, Farshid, Alaa Olleak, Jingang Yi, and Yuebin Guo. "Gaussian Process (GP)-based Learning Control of Selective Laser Melting Process." In 2021 American Control Conference (ACC). IEEE, 2021. http://dx.doi.org/10.23919/acc50511.2021.9483137.

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Ponticelli, Gennaro Salvatore, Simone Venettacci, Flaviana Tagliaferri, Oliviero Giannini, Fabrizio Patane, and Stefano Guarino. "Uncertainty assessment techniques for selective laser melting process control." In 2021 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). IEEE, 2021. http://dx.doi.org/10.1109/metroind4.0iot51437.2021.9488510.

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Rafi, H. Khalid, Swee Sing Leong, An Jia, Wai Yee Yeong, and Kah Fai Leong. "A Comparative Study on Selective Laser Melting and Electron Beam Melting Process for Orthopedic Implants." In 1st International Conference on Progress in Additive Manufacturing. Singapore: Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-0446-3_112.

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Liu, Xin, Mhamed Boutaous, Shihe Xin, and Dennis Siginer. "Numerical Simulation of Balling Phenomenon in Metallic Laser Melting Process." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-1070.

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As well known, the selective laser Sintering (SLS) is one of the most modern and innovative additive manufacturing technologies with general advantages and wide applications, as a non-contact process, which is flexible, and easily controlled. The choice of process parameters is quite important for laser melting in metallic powder bed. When these parameters are not correctly chosen, particles are either not sintering at all or joining into rather large droplets. This process is named as balling phenomenon, which is extremely unfavorable. In this paper, a 3D numerical model based on discrete element method is proposed in order to study the effect of parameters on the generation of balling droplets in laser melting process. A complex model is developed which couples all phenomena of full SLS process and results of simulations are compared with experimental works of other researchers taken from the literature.
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Alam, Nazmul, and Laurie Jarvis. "Study of melting characteristics of wire in laser cladding process." In PICALO 2006: 2nd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. Laser Institute of America, 2006. http://dx.doi.org/10.2351/1.5056911.

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Jang, Jeong-hwan, Byeong-don Joo, Sung-min Mun, Young-hoon Moona, F. Barlat, Y. H. Moon, and M. G. Lee. "Micropatterning of a Bipolar Plate Using Direct Laser Melting Process." In NUMIFORM 2010: Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921–2009). AIP, 2010. http://dx.doi.org/10.1063/1.3457523.

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Reports on the topic "Melting process on the laser"

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Gibson, Brian, and Richard Lowden. Process Development for Selective Laser Melting of Molybdenum. Office of Scientific and Technical Information (OSTI), October 2018. http://dx.doi.org/10.2172/1484987.

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Vrancken, B. Influence of Process Parameters and Alloy Composition on Crack Mitigation in Selective Laser Melting. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1661041.

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Fisher, Karl A., Jim V. Candy, Gabe Guss, and M. J. Mathews. Evaluating Acoustic Emission Signals as an in situ process monitoring technique for Selective Laser Melting (SLM). Office of Scientific and Technical Information (OSTI), October 2016. http://dx.doi.org/10.2172/1342013.

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Anderson, A., and Jean-Pierre Delplanque. Development of Physics-Based Numerical Models for Uncertainty Quantification of Selective Laser Melting Processes - 2015 Annual Progress Report. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1226942.

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Campbell, J. H., T. Suratwala, S. krenitsky, and K. Takeuchi. Manufacturing laser glass by continuous melting. Office of Scientific and Technical Information (OSTI), July 2000. http://dx.doi.org/10.2172/15002236.

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Heestand, R. L., G. L. Copeland, and M. M. Martin. Consumable arc-melting, extruding, and rolling process for iridium sheet. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5702073.

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Buelt, J., C. Timmerman, and J. Westsik, Jr. In situ vitrification: Test results for a contaminated soil-melting process. Office of Scientific and Technical Information (OSTI), October 1989. http://dx.doi.org/10.2172/5201825.

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Knapp, Cameron M. Laser Engineered Net Shaping Process Characterization. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1089454.

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Hodge, N., R. Ferencz, and J. Solberg. Implementation of a Thermomechanical Model in Diablo for the Simulation of Selective Laser Melting. Office of Scientific and Technical Information (OSTI), October 2013. http://dx.doi.org/10.2172/1108835.

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Gupta, Mool C., Chen-Nan Sun, and Tyson Baldridge. Preparation of Oxidation-Resistant Ultra High Melting Temperature Materials and Structures Using Laser Method. Fort Belvoir, VA: Defense Technical Information Center, June 2009. http://dx.doi.org/10.21236/ada583075.

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