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Relevant bibliographies by topics / Conduction laser welding

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Dissertations / Theses
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Academic literature on the topic 'Conduction laser welding'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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Journal articles on the topic "Conduction laser welding"

1

Gratzke, U., P. D. Kapadia, and J. Dowden. "Heat conduction in high-speed laser welding." Journal of Physics D: Applied Physics 24, no. 12 (December 14, 1991): 2125–34. http://dx.doi.org/10.1088/0022-3727/24/12/001.

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Lisiecki, A. "Welding of Thermomechanically Rolled Fine-Grain Steel by Different Types of Lasers/ Spawanie Stali Drobnoziarnistej Walcowanej Termomechanicznie Laserami Różnego Typu." Archives of Metallurgy and Materials 59, no. 4 (December 1, 2014): 1625–31. http://dx.doi.org/10.2478/amm-2014-0276.

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Abstract The autogenous laser welding of 2.5 mm thick butt joints of thermomechanically rolled fine-grain steel grade S420MC was investigated. Butt joints were laser welded by the Yb:YAG Disk laser, emitted a circular laser beam with spot diameter of 200 μm at 1.03 μm wavelength, and also by the high power direct diode laser, emitted a rectangular beam with dimension of 1.8x6.8 mm at 808 nm wavelength. Different welding modes were identified for the lasers applied. The conduction welding mode was observed in whole of the diode laser welding parameters. While high quality joints, without any internal defects and characterized with satisfactory mechanical performance were produced in a wide range of parameters. The butt joints produced by Disk laser were welded at keyhole mode. In this case a slight tendency to weld porosity was found.

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Shayganmanesh, Mahdi, and Afsaneh Khoshnoud. "Investigation of Laser Parameters in Silicon Pulsed Laser Conduction Welding." Lasers in Manufacturing and Materials Processing 3, no. 1 (January 13, 2016): 50–66. http://dx.doi.org/10.1007/s40516-016-0022-y.

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Meco, S., G. Pardal, S. Ganguly, R. M. Miranda, L. Quintino, and S. Williams. "Overlap conduction laser welding of aluminium to steel." International Journal of Advanced Manufacturing Technology 67, no. 1-4 (September 21, 2012): 647–54. http://dx.doi.org/10.1007/s00170-012-4512-6.

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Tsai, Fuu-Ren, and Elijah Kannatey-Asibu,. "Modeling of Conduction Mode Laser Welding Process For Feedback Control." Journal of Manufacturing Science and Engineering 122, no. 3 (June 1, 1999): 420–28. http://dx.doi.org/10.1115/1.1285864.

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The response of conduction mode laser weld pool dimensions, specifically weld width, to a step change in power input has been modeled using two-dimensional heat flow analysis. The goal is to develop a simplified model suitable for feedback control. The weld pool geometry was approximated by a tear-drop shape. The workpiece thermal properties were assumed to be lumped and temperature-independent. The result was a first-order weld pool thermal model. A series of experiments was performed using different welding conditions (plate thickness, step power changes, and welding speeds) to validate the model. The weld pool image was recorded using a vision system and digitized. The process time constant as calculated by the model was of the order of 10−4 seconds. The response of the laser machine, estimated by the least squares method, was found to be about 10−2 seconds, which is much slower than that of the weld pool. Thus, within the constraints of the assumptions on which the model is based, the entire laser welding process is considered to be dominated by the laser machine dynamics. [S1087-1357(00)00502-5]

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Trautmann, Andreas, and Michael F. Zäh. "Laser Bifocal Hybrid Welding of Aluminum." Advanced Materials Research 10 (February 2006): 65–78. http://dx.doi.org/10.4028/www.scientific.net/amr.10.65.

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This paper renders research into the fundamentals governing the melt pool dynamics of a hybrid bifocal laser welding system consisting of an Nd:YAG and a high power diode laser (HPDL). The resulting superposition of keyhole by heat conduction mode welding is assayed for extruded aluminum. In particular the diffusion of the surface oxygen layer is considered. By comparing the results attainable by bifocal laser hybrid welding to the constituent laser processes synergetic effects of the laser hybrid can be demonstrated. These are namely the doubling of the welding speed from 2.0 min-1 to 4.0 m min-1, the reduction of the roughness of the weld surface from 60 om to approximately 10 om and an increase in energy transfer efficiency. The experimental investigations verifying these synergies are outlined and discussed.

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Ivanchenko, Alexander B., I. P. Tochilin, and Aleksey V. Zhdanov. "Thermal State Simulation of Welded Steel Plates under Laser Welding Conditions." Solid State Phenomena 316 (April 2021): 396–401. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.396.

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The article describes a method for determination of the welded parts temperature pattern under laser welding conditions. An algorithm is engineered to solve the non-stationary heat conduction problem by finite element method. The boundary conditions are determined by the molten pool parameters and depend on the welding regime characteristics. The dependencies for determining the molten pool geometric dimensions for laser welding conditions are proposed. Calculations of the temperature pattern change during the steel plates joint by laser welding are carried out. It is shown that the proposed model adequately describes the heat transfer process in the welding region.

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Torkamany, M. J., F. Malek Ghaini, R. Poursalehi, and A. F. H. Kaplan. "Combination of laser keyhole and conduction welding: Dissimilar laser welding of niobium and Ti-6Al-4V." Optics and Lasers in Engineering 79 (April 2016): 9–15. http://dx.doi.org/10.1016/j.optlaseng.2015.11.001.

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Ayoola, W. A., W. J. Suder, and S. W. Williams. "Parameters controlling weld bead profile in conduction laser welding." Journal of Materials Processing Technology 249 (November 2017): 522–30. http://dx.doi.org/10.1016/j.jmatprotec.2017.06.026.

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Zhang, Ke Rong, and Jian Xun Zhang. "Temperature Gradient and Heat Conduction of Titanium Alloy during Laser Welding." Advanced Materials Research 154-155 (October 2010): 42–45. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.42.

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This paper set a numerical calculation model with local mesh refined for laser welding of titanium alloy applying body heat source model which can accurately describe the shape of keyhole and molten pool on laser welded joint. It calculated the change patterns of the temperature distribution and heat conduction in region of gas, liquid, and solid phase under different laser energy density on the stage of heating and cooling. The results showed that with the increase of the laser energy density t, the dimension of keyhole and molten pool, the temperature gradient and the duration of gas and liquid phase on the stage of heating and cooling are all expected to increase. Under the same laser energy density, temperature gradient has a maximum value in the region of gas phase, secondly is in liquid phase, and minimum in solid phase.

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Dissertations / Theses on the topic "Conduction laser welding"

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Okon, Panton. "Laser conduction welding of aluminium alloys." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400234.

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Sundqvist, Jesper. "Heat conduction effects during laser welding." Licentiate thesis, Luleå tekniska universitet, Produkt- och produktionsutveckling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17902.

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Since the invention of the laser in 1960, its use has been growing steadily. New laser sources with high beam power and high beam quality provide potential for further growth. High quality beams can be shaped by optical tools, such as scanners or Diffractive Optical Elements, DOE, to almost any beam shape, enabling innovative laser process solutions. For welding in particular, a tailored beam can be used to control the melt pool and to optimise the temperature field and cycle. For example, joining of electrical components like battery cells becomes more common due to the shift to electrical vehicles. This is a field of applications where laser welding with a tailored beam has high potential due to the need of tightly controlled design tolerances or processing temperatures and in turn electrical and mechanical properties. The research presented in the thesis encompasses the heat flow generated from tailored laser beams, the thermal effects on the weld shape and on other quality criteria, the generated residual stress and its influence on fatigue crack propagation. For the sake of simplicity, melt flow was not considered in the calculations, which was discussed, too. The first three papers apply predictive mathematical modelling for the temperature field while the fourth paper experimentally derives the thermally induced residual stress distribution back from measured fatigue crack propagation.Paper I contains a FEM-based numerical heat flow study of a conduction mode laser welding case where a C-shaped overlap joint is desired. The quality criteria demand the welding process to be tightly controlled in terms of laser power and pulse time. Contrary to expectations, the joint geometry can significantly deviate from the laser beam C shape. As a continuation, in Paper II various quantitative indicators were derived and studied as part of the numerical simulation, in order to identify a suitable beam shape and in turn a DOE-design.Paper III presents a semi-analytical mathematical model that was developed for the heat flow in pulsed conduction mode welding for spatially and temporally shaped laser beams. As an alternative to FEM, the model is fast due to its analytical nature, which enables iterative beam shape optimization and DOE-design. By studying different beam shapes and the induced temperature fields, the potential and limits of the model were demonstrated and discussed. Paper IV is a study on residual stress that is thermally induced during the heating and cooling cycle of laser keyhole welding. Acceleration measurement of the crack propagating across the weld during fatigue testing turned out to be a suitable method to derive the residual stress distribution along the crack, including its alteration during the cracking. Comparisons with FEM-based stress analysis provide a link back to the temperature field induced by the laser, which enables optimization, e.g. by beam shaping.
Godkänd; 2015; 20150911 (jessun); Nedanstående person kommer att hålla licentiatseminarium för avläggande av teknologie licentiatexamen. Namn: Jesper Sundqvist Ämne: Produktionsutveckling/Manufacturing System Engineering Uppsats: Heat Conduction Effects During Laser Welding Examinator: Professor Alexander Kaplan, Institutionen för teknikvetenskap och matematik, Avdelning: Produkt- och produktionsutveckling, Luleå tekniska universitet Diskutant: Professor Lars Pejryd, Örebro universitet, Örebro Tid: Tisdag 10 november, 2015 kl 12.30 Plats: E632, Luleå tekniska universitet

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Svenungsson, Josefine. "Conduction laser welding : modelling of melt pool with free surface deformation." Licentiate thesis, Högskolan Väst, Avdelningen för svetsteknologi (SV), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-13943.

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Laser welding is commonly used in the automotive-, steel- and aerospace industry. It is a highly non-linear and coupled process where the weld geometry is strongly affected by the flow pattern in the melt pool. Experimental observations are challenging since the melt pool and melt flow below the surface are not yet accessible during welding. Improved process control would allow maintaining, or improving, product quality with less material and contribute further to sustainability by reducing production errors. Numerical modelling with Computational Fluid Dynamics, CFD, provides complementary understanding with access to process properties that are not yet reachable with experimental observation. However, the existing numerical models lack predictability when considering the weld shape. The work presented here is the development of a model for conduction laser welding. The solver upon which the model is based is first described in detail. Then different validation cases are applied in order to test specific parts of the physics implemented. Two cases focus on thermocapillary convection in two-phase and three-phase flows with surface deformation. Finally, a third case considers the melt pool flow during conduction mode welding.It is concluded that the convection of fusion enthalpy, which was neglected in former studies, should be included in the model. The implementation of the thermo capillary force is recommended to be consistent with the other surface forces to avoid unphysical solution. Free surface oscillations, known from experimental observations, are also computed numerically. However, further investigation is needed to check that these oscillations are not disturbed b ynumerical oscillations.

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Ros, García Adrián, and Silva Luis Bujalance. "Laser welding for battery cells of hybrid vehicles." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17588.

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The report is an overview article, as a result of our investigation at the field of laser welding applied to electromobility cells manufactured in an aluminium housing. This project was proposed by the University of Skövde in collaboration with ASSAR Centre. The key results presented are based on the study of the following parameters: laser type and power, shielding gases, welding modes, patterns and layout. The conclusions of the project define the final selection of each parameter in order to achieve minimum defects and optimal electrical performance by minimizing the contact resistance.

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Kell, James. "Melt pool and microstructure manipulation using diffractive holographic elements in high power conduction laser welding." Thesis, Loughborough University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479315.

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Kotrík, Marcel. "Vliv ochranné atmosféry na vlastnosti svaru při kondukčním laserovém svařování plechů z konstrukční uhlíkové oceli." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399298.

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In the thesis are analysed influences of three shield gases, based on literary pursuit. Compared was influence of the gas consisting of pure Ar, mixture Ar with 3vol.% CO2 and the mixture Ar with 18vol.% CO2 on mechanical properties of conduction laser welded blunt welds made from structural steel DC01 and S235JR with thickness 3mm and 2mm. Compared were strength properties of the welds in tension, weld hardness and hardness of the heat affected area under the low stress. Further was observed and compared stream of the gases during welding process and its influences on the appearance of the trial welds. On the metallographical cuts of the welds were evaluated mistakes and dimensions of the welds.

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Tirand, Guillaume. "Etude des conditions de soudage laser d'alliages à base aluminium par voie expérimentale et à l'aide d'une simulation numérique." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14482/document.

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Le développement du soudage laser dans divers secteurs industriels particulièrement dans l’aéronautique au cours de la dernière décennie, a nécessité bien des études encore insuffisantes en nombre pour bien comprendre et contrôler les conditions de soudage laser que ce soit au niveau interaction laser/matière, au niveau des transferts thermiques ou au niveau métallurgique. La démarche suivie dans cette étude consiste (1) à mettre en évidence expérimentalement la problématique du soudage laser d’alliage base aluminium, c'est-à-dire le couplage des effets entre les différents paramètres de soudage, (2) à décrire l’histoire thermique d’une opération de soudage laser à partir d’une modélisation et d’une simulation numérique et (3) à exploiter la connaissance de l’évolution thermique d’un assemblage encours de soudage pour optimiser les performances mécaniques de l’assemblage en terme de résistance statique, de résistance à la fissuration à chaud, de tenue à la fatigue et de résistance à la corrosion. Les déficits de performance par exemple en terme de résistance sont principalement attribuable à des vitesses de refroidissement trop faibles au cours du soudage comparativement à des trempes ce qui justifie l’efficacité d’un traitement de mise en solution post soudage préalablement à un traitement de durcissement par précipitation
The development of laser welding in various branches of industry particularly in the aeronautics during the last decade, required many studies still insufficient in number to understand and control the conditions of laser welding concerning laser / material interaction,as well as thermal transfers or metallurgical aspects. The approach followed in this study consists (1) to bring to light experimentally the problem of laser welding of aluminium based alloy, that is the coupling of the effects between the various welding parameters, (2) to describe the thermal history of an operation of laser welding from a modelling and from a numerical simulation and (3) to exploit the knowledge of the thermal evolution of an assembly all along welding operation to optimize the mechanical performance of the assembly in term of static resistance, resistance to hot cracking, fatigue and corrosion resistance. The deficit of performance for example in term of tensile resistance is mainly related to too low speeds of cooling during welding compared with quenching. It justifies the efficiency of a post welding solution heat treatment before a precipitation hardening treatment

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Martins, Meco Sonia Andreia. "Joining of steel to aluminium alloys for advanced structural applications." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/10288.

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When joining steel to aluminium there is a reaction between iron and aluminium which results in the formation of brittle intermetallic compounds (IMC). These compounds are usually the reason for the poor mechanical strength of the dissimilar metallic joints. The research on dissimilar metal joining is vast but is mainly focused on the automotive industry and therefore, the material in use is very thin, usually less than 1 mm. For materials with thicker sections the present solution is a transition joint made by explosion welding which permits joining of steel to aluminium and avoids the formation of IMCs. However, this solution brings additional costs and extra processing time to join the materials. The main goals of this project are to understand the mechanism of formation of the IMCs, control the formation of the IMCs, and understand their effects on the mechanical properties of the dissimilar Fe-Al joints during laser welding. Laser welding permits accurate and precise control of the welding thermal cycle and thereby the underpinning mechanism of IMC formation can be easily understood along with the factors which control the strength of the joints. The further goal of this project is to find an appropriate interlayer to restrict the Fe-Al reaction. The first stage of the work was focused on the formation and growth of the Fe-Al IMCs during laser welding. The understanding of how the processing conditions affect the IMC growth provides an opportunity to act and avoid its formation and thereby, to optimize the strength of the dissimilar metal joints. The results showed that even with a negligible amount of energy it was not possible to prevent the IMC formation which was composed of both Fe2Al5 and FeAl3 phases. The IMC growth increases exponentially with the applied specific point energy. However, for higher power densities the growth is more accentuated. The strength of the Fe-Al lap-joints was found to be not only dependent on the IMC layer thickness but also on the bonding area. In order to obtain sound joints it is necessary to achieve a balance between these two factors. The thermal model developed for the laser welding process in this joint configuration showed that for the same level of energy it is more efficient to use higher power densities than longer interaction iv times. Even though a thicker IMC layer is formed under this condition due to higher temperature there is also more melting of aluminium which creates a larger bonding area between the steel and the aluminium. The joint strength is thus improved ... [cont.].

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CHIANG, PIN-HSUAN, and 江品璇. "Preparation and Optoelectric Properties of Few-Layer Reduced Graphene Oxide Conjugated with Self Welding Silver Nanowire Junctions as Flexible Transparent Conducting Hybrid Films." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/m676a4.

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碩士
國立高雄應用科技大學
化學工程與材料工程系博碩士班
106
In this study, flexible transparent conducting hybrid films (TCFs) based on few layer reduced graphene oxide (FrGO) conjugated with hydrolyzed-polyethylene terephthalate (H-PET)-based self-welding (SW) commercial silver nanowires (AgNWs) were fabricated by water-bath assisted dipping coating method. H-PET-based SW-AgNW networks were controlled by the mirror silver reaction with different reaction rates and followed by dip-coated on the H-PET film. Few layer graphene oxide (FGO) were prepared by modified Hummers and low speed centrifuge method. FrGO/SW-AgNW TCFs were further prepared by reduced under sodium borohydride and followed by dip-coated on the H-PET-based SW- AgNWs. Effects of mirror silver reaction rate and FrGO layer on the conducting networks, surface morphology, sheet resistance and transmittance of FrGO/SW-AgNW TCFs are systematically studied. The interaction between AgNWs and FrGO was also further discussed. Results showed that SW-AgNW TCFs can be successfully prepared by water-bath assisted dip-coated and mirror silver reaction. As for optical and electrical characteristics analysis, the gain value of transmittance (GPS) can reach 1.88% (the transmittance is slightly increased from 76.06% to 77.49% ) which induced by the self-welding effect. However, GPS value is decreased with increasing the mirror silver reaction temperature and time. The Gain values of sheet resistance (GES) exhibit mostly negative in nature, the maximum value of GES can remark reduce to 61.06%, confirm the truth of mirror silver reaction with the excellent self-welding effect, as well GES value is also decreased with decreasing the mirror silver reaction temperature and time. Furthermore, the results revealed that FrGO/SW-AgNW TCFs can be successfully prepared by water-bath assisted dip-coated. As for optical and electrical analysis, the gain value of transmittance (GPF) can reach 1.92% (the transmittance is slightly increased from 70.80% to 72.16%). The gain value of sheet resistance (GEF) can remark reduce to 59.9% (the sheet resistance dramatically dropped from 123.6 Ω/sq to 49.5 Ω/sq). For Raman and XPS analysis, the charge transfer behavior between FrGO and SW-AgNWs is observed, which attributed to the bridging effect between FrGO and SW-AgNWs, leading to the increase the number of conductive paths in the networks.

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Book chapters on the topic "Conduction laser welding"

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Vikas Kumar Reddy, B., S. Murugan, A. V. G. Reddy, A. C. Wali, and D. Srivastava. "Finite Difference-Based Conduction Model of Weld Pool for Laser and TIG Welding." In Lecture Notes in Mechanical Engineering, 177–87. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8767-8_14.

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Patel, S., A. Aggrawal, A. Kumar, and V. K. Jain. "High-Speed Conduction-Mode Micro-Laser Welding of Thin SS-304 Sheets: Modeling and Experimental Validation." In Lecture Notes on Multidisciplinary Industrial Engineering, 153–65. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9425-7_13.

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Abe, Nobuyuki, Naoyuki Nakamura, Yoshinori Funada, and Masahiro Tsukamoto. "The Effect of Direct Diode Laser Beam Size in Heat Conduction LAP Welding of A Thin Film on A Thick Substrate." In Ceramic Transactions Series, 381–87. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144145.ch58.

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Song, Kyung Seok, Jae Yeol Kim, and Chang Hyun Kim. "A Study on the Laser Conducting Ultrasonic Method for Non-Destructive Evaluation of Welding Part." In Key Engineering Materials, 2052–58. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-978-4.2052.

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Quintino, L., and E. Assunção. "Conduction laser welding." In Handbook of Laser Welding Technologies, 139–62. Elsevier, 2013. http://dx.doi.org/10.1533/9780857098771.1.139.

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Bag, Swarup, and Amitava De. "Computational Modelling of Conduction Mode Laser Welding Process." In Laser Welding. Sciyo, 2010. http://dx.doi.org/10.5772/9861.

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Shah Ismail, Mohd Idris, Yasuhiro Okamoto, and Akira Ok. "Micro-Welding of Super Thermal Conductive Composite by Pulsed Nd:YAG Laser." In Nd YAG Laser. InTech, 2012. http://dx.doi.org/10.5772/35255.

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Conference papers on the topic "Conduction laser welding"

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Bardin, Fabrice, Roy McBride, Andrew Moore, Stephen Morgan, Stewart Williams, Julian D. C. Jones, and Duncan P. Hand. "Real-time temperature measurement for process monitoring of laser conduction welding." In ICALEO® 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2004. http://dx.doi.org/10.2351/1.5060213.

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Wippo, Verena, Peter Jaeschke, Oliver Suttmann, Stefan Kaierle, and Ludger Overmeyer. "Laser heat conduction welding of CFRP with modified matrix material." In High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VIII, edited by Stefan Kaierle and Stefan W. Heinemann. SPIE, 2019. http://dx.doi.org/10.1117/12.2507238.

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Kell, James, John Tyrer, Rebecca Higginson, Rachel Thomson, John Jones, and Sara Noden. "Holographic diffractive optical elements allow improvements in conduction laser welding of steels." In ICALEO® 2006: 25th International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2006. http://dx.doi.org/10.2351/1.5060749.

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Assuncao, Eurico, Stewart Williams, and David Yapp. "Interaction time effects on the transition between conduction and keyhole laser welding." In ICALEO® 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2010. http://dx.doi.org/10.2351/1.5062027.

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Abe, Nobuyuki, Masahiro Tsukamoto, Takashi Imanaka, and Yoshinori Funada. "Heat conduction welding of thin foils with elliptical beam of direct diode laser." In ICALEO® 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2005. http://dx.doi.org/10.2351/1.5060521.

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Stritt, Peter, Rudolf Weber, Thomas Graf, Steffen Müller, and Christian Ebert. "Laser power modulation at the threshold from heat-conduction to deep-penetration welding." In ICALEO® 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2010. http://dx.doi.org/10.2351/1.5062028.

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Huegel, Helmut, Matthias G. Mueller, Bernd Hohenberger, and Friedrich Dausinger. "Laser beam welding: recent developments on process conduction and quality assurance." In 10th International School on Quantum Electronics: Lasers--Physics and Applications, edited by Peter A. Atanasov and Dimitar V. Stoyanov. SPIE, 1999. http://dx.doi.org/10.1117/12.347648.

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Nakamura, Susumu, Masaya Sakurai, Yoshiro Ito, Kenichi Kamimuki, and Takashi Inoue. "Detection of transition from keyhole-type to heat conduction-type welding in CO2 laser welding of metals." In ICALEO® ‘97: Proceedings of the Laser Applications in the Medical Devices Industry Conference. Laser Institute of America, 1999. http://dx.doi.org/10.2351/1.5059251.

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Berthe, Laurent, Delphine Delage, Didier Lepretre, Leonard Bacinello, Wolfgang Knapp, Nicolas Dumont, and Friedrich Durand. "Study and control process in laser conduction welding for millisecond pulse duration range." In LAMP 2002: International Congress on Laser Advanced Materials Processing, edited by Isamu Miyamoto, Kojiro F. Kobayashi, Koji Sugioka, Reinhart Poprawe, and Henry Helvajian. SPIE, 2003. http://dx.doi.org/10.1117/12.486515.

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Berthe, Laurent, Delphine Delage, Didier Lepretre, Leonard Bacinello, Wolfgang Knapp, Nicolas Dumont, and Friedrich Durand. "Study and process control in laser conduction welding for millisecond-pulse duration range." In High-Power Lasers and Applications, edited by Koji Sugioka, Malcolm C. Gower, Richard F. Haglund, Jr., Alberto Pique, Frank Traeger, Jan J. Dubowski, and Willem Hoving. SPIE, 2002. http://dx.doi.org/10.1117/12.470663.

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