| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Javadi, Yashar
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2022Mechanical stress measurement using phased array ultrasonic system
- 2022Collaborative robotic wire + arc additive manufacture and sensor-enabled in-process ultrasonic non-destructive evaluationcitations
- 2022Collaborative robotic Wire + Arc Additive Manufacture and sensor-enabled in-process ultrasonic Non-Destructive Evaluationcitations
- 2021Feed forward control of welding process parameters through on-line ultrasonic thickness measurementcitations
- 2021Non-contact in-process ultrasonic screening of thin fusion welded jointscitations
- 2020In-process calibration of a non-destructive testing system used for in-process inspection of multi-pass weldingcitations
- 2020Laser-assisted surface adaptive ultrasound (SAUL) inspection of samples with complex surface profiles using a phased array roller-probe
- 2019Ultrasonic phased array inspection of wire + arc additive manufacture samples using conventional and total focusing method imaging approachescitations
- 2019Ultrasonic phased array inspection of wire plus arc additive manufacture samples using conventional and total focusing method imaging approachescitations
- 2019Ultrasonic phased array inspection of a Wire + Arc Additive Manufactured (WAAM) sample with intentionally embedded defectscitations
- 2018Evolution of microstructure and toughness in 2.25Cr-1Mo steel weldscitations
- 2018Laser induced phased arrays for remote ultrasonic imaging of additive manufactured components
- 2018Ultrasonic phased array inspection of wire plus arc additive manufacture (WAAM) samples using conventional and total focusing method (TFM) imaging approaches
- 2017Comparison between using longitudinal and shear waves in ultrasonic stress measurement to investigate the effect of post-weld heat-treatment on welding residual stressescitations
- 2017Residual stress measurement round robin on an electron beam welded joint between austenitic stainless steel 316L(N) and ferritic steel P91citations
- 2017Measurement of residual stresses induced by sequential weld buttering and cladding operations involving a 2.25Cr-1Mo substrate materialcitations
- 2016Topographic inspection as a method of weld joint diagnosticcitations
- 2016Investigation of mechanical properties in welding of shape memory alloyscitations
- 2016Evaluation of hoop residual stress variations in the thickness of dissimilar welded pipes by using the LCR ultrasonic wavescitations
- 2015Comparison between using longitudinal and shear waves in ultrasonic stress measurement to investigate the effect of post-weld heat-treatment on welding residual stressescitations
- 2015Sub-surface stress measurement of cross welds in a dissimilar welded pressure vesselcitations
- 2015Evaluation of welding residual stress in a nickel alloy pressure vessel using the ultrasonic stress measurement technique
- 2014Ultrasonic stress evaluation through thickness of a stainless steel pressure vesselcitations
- 2014Nondestructive evaluation of welding residual stresses in austenitic stainless steel platescitations
- 2013Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thicknesscitations
- 2013Using finite element and ultrasonic method to evaluate welding longitudinal residual stress through the thickness in austenitic stainless steel platescitations
- 2013Ultrasonic evaluation of welding residual stresses in stainless steel pressure vesselcitations
- 2013Comparison between contact and immersion ultrasonic method to evaluate welding residual stresses of dissimilar jointscitations
- 2013Employing the LCR waves to measure longitudinal residual stresses in different depths of a stainless steel welded platecitations
- 2013Nondestructive evaluation of welding residual stresses in dissimilar welded pipescitations
- 2012Residual stress evaluation in dissimilar welded joints using finite element simulation and the L CR ultrasonic wavecitations
Places of action
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article
Feed forward control of welding process parameters through on-line ultrasonic thickness measurement
Abstract
Accurate control of welding parameters, such as arc power and wire speed, is critical for successful and appropriate weld joint penetration. The thickness of components being welded is a key parameter in defining optimum arc power for successful penetration, but is not always known beforehand or well controlled in manual and automated welding operations. This paper presents a novel feed-forward, sensor enabled, arc process control strategy based on ultrasonic thickness measurement. An ultrasonic wheel probe, deployed simultaneously alongside the welding torch, enables plate thickness measurement when coupled with a low-latency thickness measurement algorithm deployed on a real-time controller. An automated GTAW fusion control strategy, based on wheel probe measured plate thickness, provides direct input control of arc current, welding torch travel speed and filler wire feed rate. A parametric relationship between ultrasonically measured sample thickness and key arc welding parameters for welding S275 mild steel samples of thickness between 4.1 mm and 6.1 mm was established and verified. It is demonstrated that the system can measure and derive plate thickness while adapting arc power in real-time, with sufficiently low-latency, to allow consistent weld seam and uniform penetration on variable thickness steel samples, which under normal open-loop circumstances lead to sample burn-through and excessive penetration.