Results 11 to 20 of about 2,104 (200)
Metals, 2018 High-power fiber laser welding is an efficient and effective way to produce heavy section structures. However, there is a significant challenge in producing the welds with free of imperfections such as nail-head-shaped welds, spatters, and root sagging ...
Mingjun Zhang +4 more
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A study on bead-on-plate welding of AA7075 using low power fiber laser
Journal of Mechanical Engineering and Sciences, 2016 Laser welding promises the best method to produce higher strength of aluminium joints compared to conventional arc welding process. Arc welding usually produces a large heat affected zone (HAZ), which leads to lower joint strength on aluminium alloys ...
M.N.M Salleh +3 more
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Laser Beam Welding of CubeSat 1U Structure Parts Obtained by Powder Bed Fusion
Metals, 2022 This study contributes to a possible methodology for manufacturing CubeSats using additive manufacturing and laser beam welding. Titanium connectors were constructed by selective laser melting and electron beam melting and characterized from a ...
Rafael Humberto Mota de Siqueira +2 more
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The effect of fiber laser parameters on microhardness and microstructure of duplex stainless steel
MATEC Web of Conferences, 2017 An investigation was implement to study the influence of laser power, and speed of the welding on hardness, microstructure, and penetration of laser welding bead on plate duplex stainless steel, which is not exhibited so far.
Mohammed Ghusoon R. +3 more
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Laser micro welding with fiber lasers for battery and fuel cell based electromobility
Journal of Advanced Joining Processes, 2022 New challenges are arising within the joining processes in the field of electromobility. Joining highly reflective metals and dissimilar materials such as copper and aluminum – often encountered in battery electrical vehicles – is viewed as a challenging
E Haddad +5 more
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Copper Welding with High‐Brightness Fiber Lasers [PDF]
Laser Technik Journal, 2017 AbstractThe consumer electronics and automotive industry are the driving forces for an increased use of copper in industrial processes and products. With the development of new battery technologies and higher battery capacities, the demands to the joining technologies are increasing.
Michael Grupp, Nils Reinermann
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Advances in Materials Science and Engineering, 2018 A heat source model is the key issue for laser welding simulation. The Gaussian heat source model is not suitable to match the actual laser weld profile accurately.
Peizhi Li +5 more
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Metals, 2020 The present research investigates the effects of different welding techniques, namely traditional metal inert gas (MIG), cold metal transfer (CMT), and fiber laser-MIG hybrid, on the microstructural and mechanical properties of joints between extruded EN
Giovanna Cornacchia, Silvia Cecchel
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Welding of PMMA by a femtosecond fiber laser
Optics Express, 2015 Developing versatile joining techniques to weld transparent materials on a micrometer scale is of great importance in a growing number of applications, especially for the fabrication and assembly of biomedical devices. In this paper, we report on fs-laser microwelding of two transparent layers of polymethyl methacrylate (PMMA) based on nonlinear ...
Annalisa Volpe 1 +11 more
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Fiber Laser Welding in the Car Body Shop - Laser Seam Stepper versus Remote Laser Welding - [PDF]
Journal of Welding and Joining, 2013 The excellent beam quality of high power fiber lasers are commonly used for remote welding applications in body job applications. The Welding speed and productivity is unmatched with any other welding technology including resistance spot welding or traditional laser welding. High tooling cost for clamping and bulky safety enclosures are obstacles which
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