Results 271 to 280 of about 2,117,850 (329)
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SPIE Proceedings, 1997
The role of laser beam parameters and material properties in establishing a stable deep welding process is investigated, experimentally and theoretically. Particular emphasis is placed on the mechanisms involved in the energy coupling. It is shown that high quality welds are achieved by a proper choice of parameters and a sophisticated process ...
M. Beck +3 more
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The role of laser beam parameters and material properties in establishing a stable deep welding process is investigated, experimentally and theoretically. Particular emphasis is placed on the mechanisms involved in the energy coupling. It is shown that high quality welds are achieved by a proper choice of parameters and a sophisticated process ...
M. Beck +3 more
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Glass and Ceramics, 2018
Laser glass-welding technologies are reviewed. Welding technologies using continuous wave CO2-laser radiation in the surface-heating regime and in a deep melting regime are presented. A technology of microwelding of glass by lasers with ultra-short pulses and high pulse repetition frequency is examined.
V. S. Kondratenko, V. E. Borisovskii
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Laser glass-welding technologies are reviewed. Welding technologies using continuous wave CO2-laser radiation in the surface-heating regime and in a deep melting regime are presented. A technology of microwelding of glass by lasers with ultra-short pulses and high pulse repetition frequency is examined.
V. S. Kondratenko, V. E. Borisovskii
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International Congress on Applications of Lasers & Electro-Optics, 1988
The welding of aluminium and its alloys with CO2-lasers is not yet state of the art. The reasons for this are: – the high reflectivity – the thermal conductivity – the low ionisation energy – chemical reactions of the alloyed elements These properties are the reasons for a stronger dependence of the welding results from the process parameters in the ...
Klaus Dipl Ing Behler +2 more
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The welding of aluminium and its alloys with CO2-lasers is not yet state of the art. The reasons for this are: – the high reflectivity – the thermal conductivity – the low ionisation energy – chemical reactions of the alloyed elements These properties are the reasons for a stronger dependence of the welding results from the process parameters in the ...
Klaus Dipl Ing Behler +2 more
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Laser welding of magnetic materials [PDF]
Conference on Lasers and Electro-Optics-Europe, 1998 Industrial sectors with interest in welding magnetic materials include the aerospace, electrical and defence industries [1]. The effects of CO2 laser welding and high temperatures (i.e. above the Curie temperature) on the magnetism of ferromagnetic materials were investigated. A 1.2 kW MFKP CO2 laser was used to weld the magnetic material at a constant
Han Cheng Seat, Ian Watson
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SPIE Proceedings, 1988
Vascular tissue fusion by lasers is performed by directing a low energy beam at the apposed edges of the repair. The tissues are approximated with stay sutures or non-reflective instruments and laser energy is passed back-and-forth over the anastomotic site until fusion is achieved.
Geoffrey H. White +2 more
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Vascular tissue fusion by lasers is performed by directing a low energy beam at the apposed edges of the repair. The tissues are approximated with stay sutures or non-reflective instruments and laser energy is passed back-and-forth over the anastomotic site until fusion is achieved.
Geoffrey H. White +2 more
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Deep learning-based semantic segmentation for in-process monitoring in laser welding applications
Optical Engineering + Applications, 2019The broad uses of laser welding in various industrial applications such as shipbuilding, automotive production and battery manufacturing, result from its capabilities of high productivity, flexibility and effectiveness1.
C. Knaak +4 more
semanticscholar +1 more source
Journal of Materials Processing Technology, 2020
Abstract 6 mm thickness high strength low alloy (HSLA) steel butt joints were fabricated by fiber laser welding. The influence of welding parameters on morphologies, weld process behavior, microstructure and mechanical properties were investigated.
Zhuguo Li +5 more
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Abstract 6 mm thickness high strength low alloy (HSLA) steel butt joints were fabricated by fiber laser welding. The influence of welding parameters on morphologies, weld process behavior, microstructure and mechanical properties were investigated.
Zhuguo Li +5 more
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2018
Abstract Although laser stir welding (LSW) is applied to various metallic systems, it is especially appropriate to laser beam welding (LBW) of aluminum, because liquid aluminum possesses significantly less surface tension and viscosity than most common metal alloys, which results in greater fluidity of the molten pool.
Israel Stol, Richard P. Martukanitz
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Abstract Although laser stir welding (LSW) is applied to various metallic systems, it is especially appropriate to laser beam welding (LBW) of aluminum, because liquid aluminum possesses significantly less surface tension and viscosity than most common metal alloys, which results in greater fluidity of the molten pool.
Israel Stol, Richard P. Martukanitz
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International Congress on Applications of Lasers & Electro-Optics, 1989
Solidification type welding process experiments in conditions of microgravity were performed. The role of convection in such phenomena was examined and convective effects in the small volumes obtained in the laser weld zone were observed. Heat transfer within the weld was affected by acceleration level as indicated by the resulting microstructure ...
William F. Kaukler +2 more
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Solidification type welding process experiments in conditions of microgravity were performed. The role of convection in such phenomena was examined and convective effects in the small volumes obtained in the laser weld zone were observed. Heat transfer within the weld was affected by acceleration level as indicated by the resulting microstructure ...
William F. Kaukler +2 more
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