Welding joint detection by calibrated mosaicking with laser scanner systems

Braunreuther, Stefan; Hammerstingl, Veit; Schweier, M.; Theodossiadis, Georgios D.; Reinhart, Günther; Zaeh, Michael F.

doi:10.1016/j.cirpj.2015.03.002

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…During laser welding, phenomena arising from the interaction of the material and the laser emission, manifesting as radiation, acoustic emission, and electro-magnetic emission, can be monitored and evaluated by various sensing techniques [161][162][163][164][165]. The types of radiation most frequently monitored in conventional laser processing are back-reflected laser radiation, plasma-or metal-vapor-induced radiation, and thermal radiation [166][167][168][169]. In addition, certain nondestructive testing techniques can be used to characterize the quality of the formed joint, such as ultrasonic, magneto-optical, ray, eddy current techniques, and others [170][171][172].…”

Section: Characteristics Of Sensing Signalsmentioning

confidence: 99%

Research Progress on Characterization and Regulation of Forming Quality in Laser Joining of Metal and Polymer, and Development Trends of Lightweight Automotive Applications

Zhou

Gao

Zhang

2022

Metals

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Metal–polymer hybrid structures have been widely used in research into their lightweight automotive applications, because of their excellent comprehensive properties. As an efficient technology for automatic connection of dissimilar materials, laser joining has great application potential and development value in the field of lightweight automotive design. However, due to the physical and chemical differences between metals and polymers, the formation quality of the hybrid joint is seriously affected by defects, low bonding strength, and poor morphology. Meanwhile, it is difficult to meet the demands for lightweight automobiles by considering only bonding strength as the target for forming quality. Therefore, the technological characteristics of metal–polymer hybrid structures for use in lightweight automotive applications are analyzed, the advantages and problems of laser-joining technology are discussed, and the characterization indexes and regulation measures of forming quality in laser joining are summarized. This paper which provides reference and guidance for reliable forming, intelligent development, and lightweight application of laser joining for polymer–metal hybrid structures.

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Section: Characteristics Of Sensing Signalsmentioning

confidence: 99%

Research Progress on Characterization and Regulation of Forming Quality in Laser Joining of Metal and Polymer, and Development Trends of Lightweight Automotive Applications

Zhou

Gao

Zhang

2022

Metals

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In-situ investigation of the thermal reaction properties of multilayered aluminum–nickel nanofoils

Theodossiadis

Zaeh

2017

Prod. Eng. Res. Devel.

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Welding Seam Detection and Tracking Based on Laser Vision for Robotic Arc Welding

Zhu

Zhang³

et al. 2020

J. Phys.: Conf. Ser.

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The welding robots are widely employed in the manufacturing field. In order to measure up to the developing need of automation and intelligent production, real-time welding process sensing and controlling are necessary, in which the welding seam detection and tracking is representative task. Among the kinds of sensors applied in the robotic welding process, vision sensors is one of the most widely used for automatic welding seam tracking and quality control in robotic arc welding. This paper is to present a new framework and the data process algorithm of the sensor. A novel two-step calibration approach is proposed in this paper based on the “Calibration toolbox in Matlab”, the proposed approach acquires the laser light plane by project the linear stripe on the calibration pattern plate during camera calibration process. Experiment result indicates that the fitting error of the detected 3D point data of the weld groove is less than 0.1mm. The tracking error in robotic welding process is no more than 0.2mm. Which is acceptable for robotic welding system.

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Welding joint detection by calibrated mosaicking with laser scanner systems

Cited by 4 publications

References 5 publications

Research Progress on Characterization and Regulation of Forming Quality in Laser Joining of Metal and Polymer, and Development Trends of Lightweight Automotive Applications

Research Progress on Characterization and Regulation of Forming Quality in Laser Joining of Metal and Polymer, and Development Trends of Lightweight Automotive Applications

In-situ investigation of the thermal reaction properties of multilayered aluminum–nickel nanofoils

Welding Seam Detection and Tracking Based on Laser Vision for Robotic Arc Welding

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