Laser Ultrasonic System for On-Line Steel Tube Gauging

Monchalin, Jean‐Pierre; Choquet, Marc; Padioleau, C.; Néron, C.; Lévesque, Daniel; Blouin, Alain; Corbeil, Christian; Talbot, Richard; Bendada, A.; Lamontagne, Mario; Kolarik, Robert V.; Jeskey, Gerald V.; Dominik, Erich D.; Duly, Larry J.; Samblanet, Kenneth J.; Agger, Steven E.; Roush, Kenneth J.; Mester, Michael L.

doi:10.1063/1.1570146

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…This gauge has now measured reliably since its deployment about 600,000 tubes [78]. IMI/NRC had demonstrated the feasibility of such an application many years before on a seamless tube production line of Algoma Steel [52,69].…”

Section: On-line Wall Thickness Gauging Of Seamless Tubesmentioning

confidence: 99%

Laser-Ultrasonics: From the Laboratory to Industry

Monchalin¹

2004

AIP Conference Proceedings

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A broad overview of the field of laser-ultrasonics is presented. This overview draws from developments at the Industrial Materials Institute of the National Research Council of Canada as well as elsewhere. The principles of generation and detection are presented, stressing a few key characteristics of laser-ultrasonics: the material is actually the emitting transducer and transduction is made by light, thus eliminating any contact. These features carry both advantages and limitations that are explained. Another feature, which has been an impediment, is actually the complexity of the "laser-ultrasonic transducer", but in spite of this complexity, it can be made very reliable for use in severe industrial environments. It also can be very cost effective for a number of applications. Three applications that are now used in industry are presented: the inspection of polymer matrix composites used in aerospace, the measurement of thin layers in microelectronics and the thickness gauging of hot steel tubing in production. Technological aspects, such as interferometer design, detection lasers and others are also discussed. As an overall conclusion, laser-ultrasonics that was for a long time a laboratory curiosity has definitely now made its transition to industry. Nevertheless, developments should continue to improve performance, to make it well adapted to specific inspection or characterization tasks and more affordable.

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Section: On-line Wall Thickness Gauging Of Seamless Tubesmentioning

confidence: 99%

Laser-Ultrasonics: From the Laboratory to Industry

Monchalin¹

2004

AIP Conference Proceedings

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“…In the past 20 years, online monitoring of tube/shell wall thickness in hot forming steps has become feasible thanks to the develop ment of nondestructive testing and noncontact testing techniques [8,9] including electromagnetic acoustic transducers [10,11], radi ation transmission-based gauges, and laser-ultrasonic gauges. Over the last decade, laser-ultrasonic gauge systems [13] have also been developed. Over the last decade, laser-ultrasonic gauge systems [13] have also been developed.…”

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confidence: 99%

Online Eccentricity Monitoring of Seamless Tubes in Cross-Roll Piercing Mill

Guo

Chen

Jin

2015

Journal of Manufacturing Science and Engineering

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Wall-thickness eccentricity is a major dimensional deviation problem in seamless steel tube production. Although eccentricity is mainly caused by abnormal process conditions in the cross-roll piercing mill, most seamless tube plants lack the monitoring at the hot piercing stage but only inspect the quality o f finished tubes using ultrasonic testing (UT) at the end o f all manufacturing processes. This paper develops an online monitoring tech nique to detect abnormal conditions in the cross-roll piercing mill. Based on an imagesensing technique, process operation condition can be extracted from the vibration signals. Optimal frequency features that are sensitive to tube wall-thickness variation are then selected through the formulation and solution o f a set-covering optimization prob lem. Hotelling T2 control charts are constructed using the selected features fo r online monitoring. The developed monitoring technique enables early detection o f eccentricity problems at the hot piercing stage, which can facilitate timely adjustment and defect pre vention. The monitoring technique developed in this paper is generic and can be widely applied to the hot piercing process o f various products. This paper also provides a gen eral framework fo r effectively analyzing image-based sensing data and establishing the linkage between product quality information and process information

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“…Specially designed laser Doppler velocimeters (translation and rotation) and two-color pyrometer allow the measurement of the position and temperature at the measurement location (see Ref. [6] for details). An off-line cabin houses the laser-ultrasonic system including all delicate equipments (lasers, interferometer, etc.)…”

Section: Description Of the Systemmentioning

confidence: 99%