Results 301 to 310 of about 210,422 (351)
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Real-time ultrasonic weld inspection method
The Journal of the Acoustical Society of America, 1985The ultrasonic weld inspection method comprises transmitting an ultrasonic wave through the molten metal portion of the weld while the weld is being formed and determining if a weld defect is present in the molten metal. If no defect is detected in the molten metal, the welding process continues.
Mike C. Tsao, James F. Mancuso
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Real time weld quality monitoring of laser welded blanks – Weld profile monitoring
ICALEO '99: Proceedings of the Laser Materials Processing Conference, 1999It has been found that the geometry of weld cross-sections influences the formability of tailor welded blanks significantly. The primary defects associated with most weld failures during stamping are top concavities and convexities, root concavities, lack of fusion, pinholes, and porosity. Most weld quality monitoring devices, such as plasma monitoring
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Real-time imaging for arc welding
International Journal of Computer Integrated Manufacturing, 1990Abstract ESPRIT (CIM) Project 9 has taken automated welding systems as instances of 'machines' for which have been developed local, intelligent, corrective systems. Two widely different systems have been studied: single-pass welding, representative of the thin-sheet/high-volume industry (e.g.
D. N. WALLER, C. J. FOSTER, R. WAGNER
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INFLUENCE OF WELDING TIME ON MECHANICAL FRICTION WELDING OF BEECH
2021The optimum welding time for welded beech specimens is assessed with a compression shear test method and the softening of the wood polymers during friction welding is evaluated by dynamic mechanical analysis (DMA). A welding time of 2-3 sec yields the highest mechanical performance (13.6-14.7 MPa) that is equivalent to the shear strength of glued ...
Toumpanaki, Eleni +5 more
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SIMULATION SLASHES WELD LINE DESIGN TIME
Industrial Robot: An International Journal, 1991Most of the business of Koltanbar Engineering is designing large automated welding lines producing body assemblies. In the past, designing a welding station for one of these lines was an extremely time‐consuming process requiring complicated sectional drawings at each welding point, which were stacked up to determine the gun configuration; intricate ...
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Assembly Automation, 2002
Reviews the Essen Schweissen und Schneiden cutting and welding trade show, identifies mounting trend for electric servo guns to replace pneumatic welding guns, reports on growing interest in aluminium welding and outlines the different solutions proposed, assesses the latest developments in remote laser welding technology.
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Reviews the Essen Schweissen und Schneiden cutting and welding trade show, identifies mounting trend for electric servo guns to replace pneumatic welding guns, reports on growing interest in aluminium welding and outlines the different solutions proposed, assesses the latest developments in remote laser welding technology.
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Wood welding: Chemical and physical changes according to the welding time
2008Wood welding using linear friction is a technique that has been developed in the past five years. The goal of this study was to analyze the microstructure development in the interphase enabling the wood-to-wood adhesion without any adhesive. Chemical and physical analyses have been carried out using infrared ther- mography, mechanical shear tests ...
Ganne-Chédeville, Christelle +4 more
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Real-time control of laser-hybrid welding using weld quality attributes
ICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication, 2004Applied Thermal Sciences, Inc is developing and validating an automated, large-scale laser GMAW-assisted welding process that can be utilized to fabricate high-precision lightweight structural shapes for shipbuilding and other industries. At the heart of this laser welding process is a real-time, adaptive Process Control System (PCS).
Nelson J. Orozco +3 more
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Real-time monitoring of laser beam welding using infrared weld emissions
Journal of Laser Applications, 1998A nonintrusive, solid-state device has been developed to monitor in real time the infrared emissions during laser welding. The weld monitor output is an analog signal (100–1000 mV) that depends on the beam power and weld characteristics. The dc level of this signal is related to weld penetration, while ac portions of the output can be correlated with ...
P. G. Sanders +3 more
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Real-time estimation of weld penetration using weld pool surface based calibration
IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016Appropriate depth of weld penetration is required in many precision joining application but the weld penetration underneath the work-piece is not directly/conventionally measurable during the welding process. This work aims at establishing an analytic model to correlate the measurable weld pool surface to the development of the weld pool.
Shaojie Wu +4 more
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