Academic literature on the topic 'Laser keyhole'
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Journal articles on the topic "Laser keyhole":
Cunningham, Ross, Cang Zhao, Niranjan Parab, Christopher Kantzos, Joseph Pauza, Kamel Fezzaa, Tao Sun, and Anthony D. Rollett. "Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging." Science 363, no. 6429 (February 21, 2019): 849–52. http://dx.doi.org/10.1126/science.aav4687.
Al-Aloosi, Raghad Ahmed, Zainab Abdul-Kareem Farhan, and Ahmad H. Sabry. "Remote laser welding simulation for aluminium alloy manufacturing using computational fluid dynamics model." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 3 (September 1, 2022): 1533. http://dx.doi.org/10.11591/ijeecs.v27.i3.pp1533-1541.
Fabbro, Remy. "Depth Dependence and Keyhole Stability at Threshold, for Different Laser Welding Regimes." Applied Sciences 10, no. 4 (February 21, 2020): 1487. http://dx.doi.org/10.3390/app10041487.
Zhao, Cang, Niranjan D. Parab, Xuxiao Li, Kamel Fezzaa, Wenda Tan, Anthony D. Rollett, and Tao Sun. "Critical instability at moving keyhole tip generates porosity in laser melting." Science 370, no. 6520 (November 26, 2020): 1080–86. http://dx.doi.org/10.1126/science.abd1587.
Ur Rehman, Asif, Muhammad Arif Mahmood, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, and Ion N. Mihailescu. "Keyhole Formation by Laser Drilling in Laser Powder Bed Fusion of Ti6Al4V Biomedical Alloy: Mesoscopic Computational Fluid Dynamics Simulation versus Mathematical Modelling Using Empirical Validation." Nanomaterials 11, no. 12 (December 3, 2021): 3284. http://dx.doi.org/10.3390/nano11123284.
Dong, William, Jason Lian, Chengpo Yan, Yiran Zhong, Sumanth Karnati, Qilin Guo, Lianyi Chen, and Dane Morgan. "Deep-Learning-Based Segmentation of Keyhole in In-Situ X-ray Imaging of Laser Powder Bed Fusion." Materials 17, no. 2 (January 21, 2024): 510. http://dx.doi.org/10.3390/ma17020510.
Jin, Xiangzhong, Yuanyong Cheng, Licheng Zeng, Yufeng Zou, and Honggui Zhang. "Multiple Reflections and Fresnel Absorption of Gaussian Laser Beam in an Actual 3D Keyhole during Deep-Penetration Laser Welding." International Journal of Optics 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/361818.
Lai, Wai Jun, Supriyo Ganguly, and Wojciech Suder. "Study of the effect of inter-pass temperature on weld overlap start-stop defects and mitigation by application of laser defocusing." International Journal of Advanced Manufacturing Technology 114, no. 1-2 (March 8, 2021): 117–30. http://dx.doi.org/10.1007/s00170-021-06851-8.
Hao, Zhongjia, Huiyang Chen, Xiangzhong Jin, and Zuguo Liu. "Comparative Study on the Behavior of Keyhole in Analogy Welding and Real Deep Penetration Laser Welding." Materials 15, no. 24 (December 16, 2022): 9001. http://dx.doi.org/10.3390/ma15249001.
Henze, Insa, and Peer Woizeschke. "Laser Keyhole Brazing." PhotonicsViews 18, S1 (February 2021): 30–31. http://dx.doi.org/10.1002/phvs.202100013.
Dissertations / Theses on the topic "Laser keyhole":
Holbert, Roy Kyle. "An investigation of the keyhole penetration mode in carbon dioxide laser welding /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487849377292756.
Blackburn, Jonathan. "Understanding porosity formation and prevention when welding titanium alloys with 1μm wavelength laser beams." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/understanding-porosity-formation-and-prevention-when-welding-titanium-alloys-with-1-micro-metre-wavelength-laser-beams(d8708b46-50ac-42f1-8f5e-a26ebdfc8ae6).html.
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.
Folchitto, Edoardo. "Saldatura laser di componenti in rame per la produzione di motori elettrici nel settore automotive." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
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.
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
Zajíc, Jiří. "Porovnání vlastností tupých svarů svařených laserem a plazmou pro austenitickou a feritickou korozivzdornou ocel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382469.
Heiderscheit, Timothy Donald. "Comparative study of near-infrared pulsed laser machining of carbon fiber reinforced plastics." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5946.
Métais, Alexandre. "Simulation numérique des phénomènes thermohydrauliques et de diffusion des éléments chimiques lors du soudage laser d'aciers de nature différente." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCK052/document.
The design of new steel grades offering equivalent mechanical performances for lower thicknesses and the added value with the possibility to join two different steel grades, require development and control of joining processes. Thanks to high precision and good flexibility, the laser welding became one of the most used processes for joining of dissimilar welded blanks. The prediction of local chemical composition in the weld formed between dissimilar steels in function of the welding parameters is essential because the dilution rate and the distribution of alloying elements in the melted zone determine the final tensile strength of the weld. The goal of the present study is to create and to validate a multiphysical numerical model studying the mixing of dissimilar steels in laser weld pool. For a better understanding of materials mixing based on convection-diffusion process in the melted pool in case of full penetrated laser welding, a 3D simulation developed within COMSOL Multiphysics®, including heat transfer, fluid flow and transport of species has been performed to provide the weld geometry and quantitative mapping of elements distributions in the melted zone. In order to reduce computation time, the model has been developed basing on the following hypothesis: a steady keyhole approximation and solved in quasi-stationary form. Turbulent flow model was used to calculate velocity field. Fick law for diluted species was integrated to simulate the transport of alloying elements in the weld pool. In parallel, to validate the model, a number of experiments using pure Ni foils as tracers have been performed to obtain mapping post-mortem of Ni distribution in the melted zone. The results of simulations have been found in good agreement with experimental data. Afterwards the model was applied to laser welding between Dual Phase steel (DP) and high Mn steel (TWIP) and finally it was adapted to the study of coating dissolution in laser weld pool
Křivan, Miloš. "Simulace geometrie key hole v závislosti na svařovacích parametrech při laserovém penetračním svařování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230461.
Mostafa, Massaud. "Etude du perçage et du soudage laser : dynamique du capillaire." Phd thesis, Université de Bourgogne, 2011. http://tel.archives-ouvertes.fr/tel-00692412.
Book chapters on the topic "Laser keyhole":
Dowden, John. "Laser Keyhole Welding: The Vapour Phase." In The Theory of Laser Materials Processing, 113–51. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56711-2_5.
Dowden, John. "Laser Keyhole Welding: The Vapour Phase." In The Theory of Laser Materials Processing, 95–128. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9340-1_4.
Dowden, John Michael. "Simple Models of Laser Keyhole Welding." In The Mathematics of Thermal Modeling, 151–89. 2nd ed. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781032684758-6.
Kaplan, Alexander. "Keyhole Welding: The Solid and Liquid Phases." In The Theory of Laser Materials Processing, 89–112. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56711-2_4.
Kaplan, Alexander. "Keyhole Welding: The Solid and Liquid Phases." In The Theory of Laser Materials Processing, 71–93. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9340-1_3.
Gong, Shuili, Shengyong Pang, Hong Wang, and Linjie Zhang. "Simulation of Transient Keyhole and Weld Pool." In Weld Pool Dynamics in Deep Penetration Laser Welding, 107–40. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0788-2_4.
Gong, Shuili, Shengyong Pang, Hong Wang, and Linjie Zhang. "Dynamic Behaviors of Metal Vapor/Plasma Plume Inside Transient Keyhole." In Weld Pool Dynamics in Deep Penetration Laser Welding, 141–63. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0788-2_5.
Gong, Shuili, Shengyong Pang, Hong Wang, and Linjie Zhang. "Keyhole and Weld Pool Dynamics in Dual-Beam Laser Welding." In Weld Pool Dynamics in Deep Penetration Laser Welding, 183–201. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0788-2_7.
Gong, Shuili, Shengyong Pang, Hong Wang, and Linjie Zhang. "Dynamical Behaviors of Keyhole and Weld Pool in Vacuum Laser Welding." In Weld Pool Dynamics in Deep Penetration Laser Welding, 253–73. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0788-2_9.
Gong, Shuili, Shengyong Pang, Hong Wang, and Linjie Zhang. "Keyhole and Weld Pool Dynamics in Laser Welding with Filler Wires." In Weld Pool Dynamics in Deep Penetration Laser Welding, 203–51. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0788-2_8.
Conference papers on the topic "Laser keyhole":
Kaplan, Alexander F. H., Masami Mizutani, Seiji Katayama, and Akira Matsunawa. "Keyhole laser spot welding." In ICALEO® 2002: 21st International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2002. http://dx.doi.org/10.2351/1.5066203.
Cho, M. H., D. Farson, J. Y. Lee, and C. D. Yoo. "Laser weld keyhole dynamics." In ICALEO® 2001: Proceedings of the Laser Materials Processing Conference and Laser Microfabrication Conference. Laser Institute of America, 2001. http://dx.doi.org/10.2351/1.5059953.
Zhou, J., H. L. Tsai, P. C. Wang, and R. Menassa. "Melt Flow and Porosity Formation in Pulsed Laser Keyhole Welding." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56732.
Pang, Shengyong, Liliang Chen, Yajun Yin, Tao Chen, Jianxin Zhou, Dunming Liao, and Lunji Hu. "Three-dimensional simulation transient keyhole evolution during laser keyhole welding." In Photonics and Optoelectronics Meetings 2009, edited by Dianyuan Fan, Horst Weber, Xiao Zhu, Dongsheng Jiang, Xiaochun Xiao, Weiwei Dong, and Desheng Xu. SPIE, 2009. http://dx.doi.org/10.1117/12.843202.
Poueyo-Verwaerde, Anne, B. Dabezies, and Remy Fabbro. "Thermal coupling inside the keyhole during welding process." In Europto High Power Lasers and Laser Applications V, edited by Eckhard Beyer, Maichi Cantello, Aldo V. La Rocca, Lucien D. Laude, Flemming O. Olsen, and Gerd Sepold. SPIE, 1994. http://dx.doi.org/10.1117/12.184720.
Gärtner, Philipp, and Rudolf Weber. "Spatter formation and keyhole observation with high speed cameras - Better understanding of the keyhole formation." In ICALEO® 2009: 28th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2009. http://dx.doi.org/10.2351/1.5061576.
Metzbower, E. A. "Absorption in the keyhole." In ICALEO® ‘97: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1997. http://dx.doi.org/10.2351/1.5059719.
Bardin, Fabrice, Adolfo Cobo, Jose M. Lopez-Higuera, Olivier Collin, Pascal Aubry, Thierry Dubois, Mats Högström, et al. "Process control of laser keyhole welding." In ICALEO® 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2004. http://dx.doi.org/10.2351/1.5060185.
Tan, Wenda, and Wenkang Huang. "Numerical Modeling of Thermo-Fluid Flow and Metal Mixing in Laser Keyhole Welding of Dissimilar Metals." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6640.
Matsunawa, Akira, Naoki Seto, Masami Mizutani, and Seiji Katayama. "Liquid motion in keyhole laser welding." In ICALEO® ‘98: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1998. http://dx.doi.org/10.2351/1.5059193.
Reports on the topic "Laser keyhole":
Wood, B. C., T. A. Palmer, and J. W. Elmer. Comparison Between Keyhole Weld Model and Laser Welding Experiments. Office of Scientific and Technical Information (OSTI), September 2002. http://dx.doi.org/10.2172/15006362.
Ahlquist, E., V. Castillo, and Y. Hu. Keyhole-mode Microscopy Dataset for Laser Powder-bed Fusion Modeling. Office of Scientific and Technical Information (OSTI), June 2022. http://dx.doi.org/10.2172/1878448.