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Weld depth control in fiber laser welding of thin metal sheets
ICALEO 2008: 27th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2008Laser beam welding of electrical connections or sealing of casings are typical applications in the field of precision engineering. Controlling the shape of the welded connections is an important issue in this context. A common requirement is for example to achieve a specific welding depth in order not to damage functional layers or contaminate the ...
Jens Gedicke +4 more
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ICALEO '97: Proceedings of the Laser Materials Processing Conference, 1997
The optical monitoring was applied to the process control in laser sleeve welding. It can monitor the focus shift, the power variation and the weld depth. It can also detect the gap and the degradation of lens by monitoring the weld pool size variation during the cooling process.
Chin-Man Chung +2 more
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The optical monitoring was applied to the process control in laser sleeve welding. It can monitor the focus shift, the power variation and the weld depth. It can also detect the gap and the degradation of lens by monitoring the weld pool size variation during the cooling process.
Chin-Man Chung +2 more
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Spectrometer as a quantitative sensor for predicting the weld depth in laser welding
Optics & Laser TechnologySpectrometers have been used for quality assessment or as auxiliary sensors in multisensor systems to record emissions at different wavelengths. This study developed a single-spectrometer sensor to quantitatively predict the laser penetration depth in Cu/Al overlap and dual-phase (DP) steel bead-on-plate welding joints.
Sanghoon Kang +3 more
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Dynamics of penetration depth during laser welding
ICALEO '94: Proceedings of the Laser Materials Processing Conference, 1994The results of an experimental investigation of weld depth dynamics during spot welding of stainless steel 304 with a CO2 laser are reported. High speed photography was used to investigate the melt penetration rate for two values of laser power, 1.42 kW and 2.70 kW, during the first millisecond of interaction.
V. V. Semak +6 more
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Improvement in Depth of Weld Penetration During TIG, Activated-TIG, and Pulsed TIG Welding
International Journal of Manufacturing, Materials, and Mechanical Engineering, 2021Joining of dissimilar materials has gained a lot of interest in the recent years due to the increased demand of high strength and light weight designs. Fusion welding plays a vital role in repairing and manufacturing industries like automobile, construction, ship building, and energy sector.
Ajitav Sahoo, Sasmeeta Tripathy
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Depth of Penetration During Electron Beam Welding
Journal of Heat Transfer, 1971An examination of available solutions for the penetration depth for electron beam welding revealed that they have been based on mathematical models which are not truly representative of the physical phenomena. The deposition of electron beam energy has been represented by a steady line source.
H. Tong, W. H. Giedt
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CHARACTERIZATION OF WELDING ZONE OF SHIPBUILDING STEEL UNDERWATER WELDED AT DIFFERENT DEPTHS
2021Although welding operations are mostly carried out in atmospheric conditions in shipbuilding, underwater welding is also used intensively in order to speed up the repair processes in the underwater parts of the ships. It is known that due to the nature of the underwater welding, there are significant differences in the weld area compared to the weld ...
SEKBAN, Dursun Murat, NACAR, Abdulhabib
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Weld Line Detection using RealSense Depth Camera based on Depth Map
2020 IEEE 9th Joint International Information Technology and Artificial Intelligence Conference (ITAIC), 2020Weld line detection is essential to achieve non-destructive inspection automation. Due to the irregularity and the lack of topological information of the point cloud, it is hard to effectively detect the weld line from the 3D weld point cloud. This research investigates a novel method by using the depth map of point cloud to achieve high precision weld
Kewen Huang +3 more
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Laser Ultrasonic Sensing of Penetration Depth in Robotic Welding: Simulated Solidified Welds
Manufacturing Science and Engineering, 1996Abstract An on-line sensor is required for real-time control of penetration depth in robotic welding. Currently, no on-line techniques exist for direct penetration depth measurement. The development of a penetration control system will significantly reduce the costs associated with repairing or scrapping defective welds.
George M. Graham, I. Charles Ume
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Experimental investigation of the weld depth and thermal efficiency during electron beam welding
Vacuum, 1998Abstract The results are given of an investigation of electron beam welding, concerning the correlation between the process parameters such as weld depth, focusing parameter and thermal efficiency. Weld quality data for various welding velocities, beam powers and positions of the focusing plane relative to the sample surface are given.
G Mladenov, K. Vutova, S. Wojcicki
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