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Artykuły w czasopismach na temat "Soudage par transmission laser":
PETESCH, B., A. SAKOUT, M. LAURENT i M. ROBIN. "SOUDAGE D'ACIER Z 2 CN 18-10 PAR LASER CO2". Le Journal de Physique Colloques 48, nr C7 (grudzień 1987): C7–185—C7–186. http://dx.doi.org/10.1051/jphyscol:1987735.
GREVEY, D. F., H. ANDRZEJEWSKI i C. BOUDOT. "Détermination de cartographies des pénétrations en soudage par laser YAG". Le Journal de Physique IV 04, nr C4 (kwiecień 1994): C4–190—C4–190. http://dx.doi.org/10.1051/jp4:1994445.
Graneix, Jérémie, Jean-Denis Beguin, François Pardeilhan, Talal Masri i Joël Alexis. "Etude expérimentale du soudage par laser YAG de l'alliage base nickel Hastelloy X". MATEC Web of Conferences 7 (2013): 02011. http://dx.doi.org/10.1051/matecconf/20130702011.
CAZES, R., P. MARTIN i G. SAYEGH. "ETUDE PRELIMINAIRE DE SOUDAGE PAR POINTS POUR L'ASSEMBLAGE DES TÔLES DE CARROSSERIE A L'AIDE D'UN LASER DE 8kW". Le Journal de Physique Colloques 48, nr C7 (grudzień 1987): C7–171—C7–174. http://dx.doi.org/10.1051/jphyscol:1987731.
Dumord, E., J. M. Jouvard, D. Grevey, M. Druetta i P. Ottavi. "Étude expérimentale de l'interaction laser-matière dans le cas du soudage d'un acier inoxydable austénitique par laser Nd:YAG continu de 2 kW". Journal de Physique III 7, nr 5 (maj 1997): 1079–96. http://dx.doi.org/10.1051/jp3:1997177.
Desmaison, Olivier, Michel Bellet i Gildas Guillemot. "Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs". MATEC Web of Conferences 7 (2013): 02003. http://dx.doi.org/10.1051/matecconf/20130702003.
CHANG-HASNAIN, C. J., Y. A. WU, L. E. ENG i G. S. LI. "VERTICAL CAVITY SURFACE EMITTING LASER ARRAYS FOR WAVELENGTH DIVISION MULTIPLEXING APPLICATIONS". International Journal of High Speed Electronics and Systems 05, nr 04 (grudzień 1994): 569–92. http://dx.doi.org/10.1142/s0129156494000231.
You, Jiang, Jingliang Gu, Yinglei Du, Min Wan, Chuanlin Xie i Zhenjiao Xiang. "Atmospheric Turbulence Aberration Correction Based on Deep Learning Wavefront Sensing". Sensors 23, nr 22 (14.11.2023): 9159. http://dx.doi.org/10.3390/s23229159.
AKUE ASSEKO, André Chateau, i Benoît COSSON. "Soudage laser par transmission de composites". Plastiques et composites, październik 2023. http://dx.doi.org/10.51257/a-v1-am5232.
CAZES, Roland. "Soudage par faisceaux à haute énergie : faisceau d’électrons et laser". Travail des matériaux - Assemblage, maj 1994. http://dx.doi.org/10.51257/a-v1-b7740.
Rozprawy doktorskie na temat "Soudage par transmission laser":
Jabeen, Rowshni. "Laser transmission welding of natural fibre reinforced thermoplastic composites". Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2022. http://www.theses.fr/2022MTLD0011.
Laser transmission welding of thermoplastics requires the optimisation of interfacial adhesion at the weld joint. In this regard, the process modelling, and the development of numerical simulation tools are indispensable to optimize the mechanical strength of the weld joint. The task is more difficult in the case of highly heterogeneous and anisotropic composite materials. Moreover, the laser transmission is still difficult in the case of opaque or semi-transparent media such as natural fibre reinforced thermoplastic composites. The thermal and optical properties of composites depend on the properties and morphology of the constituents such as fibres and polymer, which can affect the transmission spectrum in the infrared range. The absorption and refraction of laser ray propagation in the composite materials lead to a reduction of the transmitted energy arriving at the weld interface, which directly influences the quality of the weld and its mechanical performance. In this dissertation, the effect of absorption and diffusion phenomena on the development of temperature field at the weld interface is analysed numerically and experimentally. Considering the fibre orientation, shape, length and volume fraction, numerical 3D geometries representing composite materials are generated to simulate the propagation of laser rays with “Ray tracing” algorithm. Numerical models to estimate the strength of weld are presented while considering the influence of welding parameters (such as laser power, feeding speed and focus position), material properties and molecular interdiffusion at the weld interface. The weld bonding strength is measured by mechanical tests and their results are compared with numerical modelling results
Rivière, Cécile. "Assemblage de céramiques par faisceau laser". Lyon, INSA, 1996. http://www.theses.fr/1996ISAL0135.
CO2 and YAG lasers were used for welging SiO2 Al2O3 ceramic tubes with 60 wt% alumina content (mullite) and Al2O3 tubes with 95wt% alumina content. Investigations of thermal stresses, which must be minimized for crack free welding, show the necessity of preheating. One can preheat the whole workpiece or part of it using different preheating methods. The welding method which could fit the two ceramics was the use of two sub-beams (one is used for preheating) obtained from the division of a primary gaussian beam. The effects of welding parameters on the microstructure of the fusion zone have been studied. Prevention of weld defects including crack and porosity was also investigated. Strength of the weld joints is evaluated by a 4-point bend test and the effects of heterogeneity of ceramics have been taken into account by a Weibull analysis. From cathodoluminescence experiments, the radiative of the samples have been probed in the wavelength rang 250-900 nm. They have been related to the presence of defects as impurities, oxygen vacancies and device centers. At last, ceramics charging properties have been tackled by the use of an original method: the mirror method
Rodriguez-Pena, Luis. "Assemblage aluminium : Acier par faisceau laser Nd : YAG". Ecully, Ecole centrale de Lyon, 2005. http://bibli.ec-lyon.fr/exl-doc/lrodriguezpena.pdf.
The reduction of consumption of fuel of internal combustion motors, imposed by the new anti-pollution and energy saving laws may be attained by reducing the weight of vehicles, introducing, for example, aluminium sections into the main steel car-body. Laser brazing is a process which can be used to perform such a junction. The main problem of welding this kind of combination of materials with conventional processes is the potential formation of inter-metallic phases, which reduces the good performance of the joint. Laser brazing allows a very good control of the thermal development of the joint, with a limited precipitation of these brittle phases. This work presents the results of a feasibility study made with ZnAl-30 and AlSi-12 as filler metal. The study shows that the type of configuration used for the assembly has a particular influence on the formation of brittle phases and consequently on the mechanical performance of the joint
Rodriguez-Pena, Luis Langlade Cécile. "Assemblage aluminium Acier par faisceau laser Nd : YAG /". [S.l.] : [s.n.], 2005. http://bibli.ec-lyon.fr/exl-doc/lrodriguezpena.pdf.
Darcourt, Claudie. "Simulation numérique du soudage laser de structures aéronautiques". Compiègne, 2005. http://www.theses.fr/2005COMP1554.
The objectif of this work is to use numerical simulation to predict residual distortions of fuselage panels. A local/global method is proposed in order to answer to this problem of large thin stuctures modelisation (with T-jonctions). It consists, in a first lime, in carrying a non-linear thermo-mechanical analysis on a 3D local mode!. An equivalent local shell model is built inssuring there are the same distorsions as the 3D model one. The global structure response is then given by copying the stress fields from the equivalent local shell model to the global shell model and by the workpiece elastic equilibrium. Each step of this method has been validated by experimental welding tests. The global structure represents a welded panel with three stiffeners. The comparison of the residual curvature between simulation and experiement gives very good results
Lê, Thi Thuy Trang. "Dimensionnement à la fatigue des structures soudées par laser". Palaiseau, Ecole polytechnique, 2009. https://pastel.archives-ouvertes.fr/pastel-00005282.
Dumord, Evelyne. "Modélisation du soudage continu par faisceau de haute énergie : application au cas du soudage par laser Nd:YAG d'un acier X5 Cr.Ni 18-10". Dijon, 1996. http://www.theses.fr/1996DIJOS056.
Iordache, Luminita. "Analyse tribo-métallurgique des rechargements base cobalt par fusion soudage d'outillages à chaud". Paris, ENSAM, 2006. http://www.theses.fr/2006ENAM0065.
Caillibotte, Georges. "Etude expérimentale de la refusion superficielle des métaux par laser CO2 multikilowatts continu". Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX22095.
Oumarou, Mairagouna Mamane. "Approche probabiliste du comportement mécanique des composites thermoplastiques assemblés par soudage laser". Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00819162.
Książki na temat "Soudage par transmission laser":
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.
Welding, International Institute of, red. Electron and laser beam welding: Proceedings of the international conference held in Tokyo, Japan, 14-15 July 1986 under the auspices of the International Institute of Welding = Soudage par faisceau d'électrons et laser : communications présentéesa la conférence internationale tenue a Tokyo, Japon les 14-15 juillet 1986 sous les auspices de l'Institut international de la soudure. Oxford: Published on behalf of the International Institute of Welding by Pergamon, 1986.
Welding, International Institute of, i International Conference on Electron and Laser Beam Welding (1986 : Tokyo, Japan), red. Electron and laser beam welding: Proceedings of the international conference held in Tokyo, Japan, 14-15 July 1986 under the auspices of the International Institute of Welding = Soudage par faisceau d'électrons et laser : communications présentées à la conférence internationale tenue à Tokyo, Japon, les 14-15 juillet 1986 sous les auspices de l'Institut international de la soudure. Oxford [Oxfordshire]: Published on behalf of the International Institute of Welding by Pergamon Press, 1986.
5eme Colloque international sur le soudage et la fusion par faisceaux d'electrons et laser =: 5th International Conference on Welding and Melting by Electron and Laser Beams, La Baule, 14-18 juin 1993. Commissariat a l'energie atomique, 1993.
Digital Processing Optics and Photonics. Taylor & Francis Inc, 2013.
Streszczenia konferencji na temat "Soudage par transmission laser":
Mehta, Jason N., i Christopher G. Rylander. "Solid Fiber Inside Capillary and Modified Fusion-Spliced Fiber Optic Microneedle Devices". W 2020 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dmd2020-9050.