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Deep learning-based automated characterization of crosscut tests for coatings via image segmentation / Gaoyuan Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
[article]
Titre : Deep learning-based automated characterization of crosscut tests for coatings via image segmentation Type de document : texte imprimé Auteurs : Gaoyuan Zhang, Auteur ; Christian Schmitz, Auteur ; Matthias Fimmers, Auteur ; Christoph Quix, Auteur ; Sayed Hoseini, Auteur Année de publication : 2022 Article en page(s) : p. 671-683 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Analyse d'imageL'analyse d'image est la reconnaissance des éléments contenus dans l'image. Il ne faut pas confondre analyse (décomposition en éléments) et traitement (action sur les composantes) de l'image.
Analyse de dommages (matériaux)
Autoapprentissage
Automatisation
Caractérisation
Enrobage (technologie)
Essais de quadrillage
Imagerie (technique)
Logiciels
Rayures
Résistance à l'abrasion
Revêtements -- Détérioration
Surfaces (Physique)Index. décimale : 667.9 Revêtements et enduits Résumé : A manual scratch test to measure the scratch resistance of coatings applied to a certain substrate is usually used to test the adhesion of a coating. Despite its significant amount of subjectivity, the crosscut test is widely considered to be the most practical measuring method for adhesion strength with a good reliability. Intelligent software tools help to improve and optimize systems combining chemistry, engineering based on high-throughput formulation screening (HTFS) technologies and machine learning algorithms to open up novel solutions in material sciences. Nevertheless, automated testing often misses the link to quality control by the human eye that is sensitive in spotting and evaluating defects as it is the case in the crosscut test. In this paper, we present a method for the automated and objective characterization of coatings to drive and support Chemistry 4.0 solutions via semantic image segmentation using deep convolutional networks. The algorithm evaluated the adhesion strength based on the images of the crosscuts recognizing the delaminated area and the results were compared with the traditional classification rated by the human expert. Note de contenu : - BACKGROUND : Neural networks - Convolutional neural networks and image segmentation tasks
- SOLUTION APPROACH AND EXPERIMENTAL SETUP : Sample preparation - Automated crosscutting - Data preprocessing - Data augmentation - Architectures Loss functions
- EVALUATION : Training - Results
- Table 1 : Summary of the applied data augmentation methods
- Table 2 : Confusion matrices of the various models being applied for the segmentation into delaminated and intact area
- Table 3 : Comparison between human and algorithmic rating for samples selected across all six levels defined in the norm
- Table 4 : Mean Dice coefficient in % calculated over all 31 test images with standard deviation, inference time for the test set and the number of parameters for each model paired with each of the different lossesDOI : https://doi.org/10.1007/s11998-021-00557-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00557-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37296
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 2 (03/2022) . - p. 671-683[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23408 - Périodique Bibliothèque principale Documentaires Disponible Development of improved liming process based on automated pH monitoring and control system / N. Vedaraman in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 6 (06/2021)
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Titre : Development of improved liming process based on automated pH monitoring and control system Type de document : texte imprimé Auteurs : N. Vedaraman, Auteur ; Kota Srinivas, Auteur ; D. Krishnamoorthy, Auteur ; V. Aparna, Auteur ; V. P. Anand, Auteur ; A. Saravana Raj, Auteur ; M. Mohammed Abu Javid, Auteur ; Chellappa Muralidharan, Auteur ; Victor John Sundar, Auteur ; K. Iyappan, Auteur ; K. C. Velappan, Auteur Année de publication : 2021 Article en page(s) : p. 213-220 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automatisation
Chaulage
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés organoleptiques
Eaux usées -- Recyclage
pH -- Mesure
Surveillance électronique
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The control of pH of a process plays an important role in many chemical or biological reactions. The monitoring and control of pH of processes like wastewater treatment, manufacturing food and leather making facilitate to reduce pollution and improve the quality of the final product. The focus of this study is to optimize the usage of lime and recycling of spent liquor through continuous monitoring system of pH to achieve near zero residue from liming operation. But the challenges are nonlinear behaviour of the system and frequent fouling of pH sensors. The system developed monitors the pH values and controls the cycling time and the addition of lime as per the user set profile. The real time data of pH values in the process is logged on to the PC for further analysis. The efficacy of the system developed was validated at lab level and can be easily scaled up for implementation in industries. The results showed that the effluent from leather making can be minimized by adopting automated pH monitoring and control systems. Note de contenu : - Materials and methods
- Description of instrumentation system
- Application software description
- Application software
- Analyses of chemical, mechanical and organoleptic properties
- Table 1 : Chemical usage of liming process
- Table 2 : Physical and chemical analysis of crhome tanned and crust leather
- Table 3 : Organoleptic properties of chrome tanned crust leatherDOI : https://doi.org/10.34314/jalca.v116i6.4309 En ligne : https://drive.google.com/file/d/1F0vaVnBKPchI96U4RI3B1HNMJ9vkskvu/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36044
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVI, N° 6 (06/2021) . - p. 213-220[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22829 - Périodique Bibliothèque principale Documentaires Disponible Development of new preforming process for high performance fibre-reinforced platic (FRP) components / Christoph Greb in SAMPE JOURNAL, Vol. 46, N° 5 (09-10/2010)
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Titre : Development of new preforming process for high performance fibre-reinforced platic (FRP) components Type de document : texte imprimé Auteurs : Christoph Greb, Auteur ; Andreas Schnabel, Auteur ; Thomas Gries, Auteur ; Frank Felix Kruse, Auteur Année de publication : 2010 Article en page(s) : p. 42-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automatisation
Composites à fibres
Coût -- Contrôle
Industries aérospatiales
PréformageIndex. décimale : 668.4 Plastiques, vinyles Résumé : Fiber-reinforced composites offer a number of attractive material properties, most prominently high stiffness and strength combined with low mass density. Therefore, they have been the materials of choice for space and military aircraft applications for a long time and are now conquering the conservative realm of commercial transportation. In the aerospace industry a cost overrun from 500E/kg reduced wight is accepted, whereas in the automobile industry only 54/Kg1. In this contexte to cost efficient production of fiber-reinforced plastic (FRP) components for structural applications is a great demand of the aerospace, wind energy and especially automobile industries.
Composite parts are currently manufactured using manual and semi-automated processes. These are time and cost consuming and cause an inefficient use of cost intensive tool forms. Furthermore manual operations lead to a lack of reproducibility and to complex subsequent finishing steps.
While aerospace and wind energy industry demand large scale FRP components, the automotive industry requires highly integrated, mass produced parts. In both cases the production of textil reinforcement structures (preforms) causes up to 50 % of the overall costs. The combination of single step and multi-step preforming processes is an economically viable approach for the production of these preforms.
In the following, both single and multi-step preforming as well as the design of automated process chains will be introduced.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10112
in SAMPE JOURNAL > Vol. 46, N° 5 (09-10/2010) . - p. 42-50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012473 - Périodique Bibliothèque principale Documentaires Disponible Developments in filament winding software / Andrew Priestley in JEC COMPOSITES MAGAZINE, N° 130 (09-10/2019)
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Titre : Developments in filament winding software Type de document : texte imprimé Auteurs : Andrew Priestley, Auteur Année de publication : 2019 Article en page(s) : p. 31-34 Langues : Anglais (eng) Catégories : Automatisation
Composites
Enroulement filamentaire
LogicielsIndex. décimale : 677.4 Textiles artificiels Résumé : Filament winding is one of the few automated processes for composites manufacture and can produce highly repeatable, high quality components at reduced labour content. A big advantage of filament winding is that it used continuous fibres which leads to very good material properties for both strength and stiffness. There is also the ability to orientate the fibre directions for 'optimised' composites. High fibre volume fractions are possible, and it can use materials in the simplest (lowest cost) form - fibre roving & resin winding is accurate, repeatable and gives a high-quality internal surface. Note de contenu : - Some history
- Why do we need filament winding software ?
- Inbuilt machine simulation
- Winding machine control and configuration
- Developments in pipe fitting winding
- Integration of winding process into the design system
- Fig. 1 : Modern CNC winder with siemens control
- Fig. 2 : Cadfil winding simulation/animation with clas detection
- Fig. 3 : Woven tape used on a 90 degrees bended elbow
- Fig. 4 : Accurate control of twist & shear is very important with wide fabric tapesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33816
in JEC COMPOSITES MAGAZINE > N° 130 (09-10/2019) . - p. 31-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21112 - Périodique Bibliothèque principale Documentaires Disponible Digital factory develops innovative ilot solutions / Annabel Jondral in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 2 (2019)
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Titre : Digital factory develops innovative ilot solutions Type de document : texte imprimé Auteurs : Annabel Jondral, Personne interviewée Année de publication : 2019 Article en page(s) : p. 12-13 Langues : Anglais (eng) Catégories : Automatisation
Industrie 4.0Le concept d’Industrie 4.0 correspond à une nouvelle façon d’organiser les moyens de production : l’objectif est la mise en place d’usines dites "intelligentes" ("smart factories") capables d’une plus grande adaptabilité dans la production et d’une allocation plus efficace des ressources, ouvrant ainsi la voie à une nouvelle révolution industrielle. Ses bases technologiques sont l'Internet des objets et les systèmes cyber-physiques.
LogicielsIndex. décimale : 658.5 Gestion de la production : classer à 670.4 les opérations en usine. Classer ici les études générales et ce qui concerne la production industrielle. Pour les autres sujets, ajouter à l'indice la subdivision 0685, Table 1 Résumé : For the last year experts from different divisions within Dürr have been working together in the company's digital factory to develop digital solutions specifically for the automotive industry. In this interview, the author explains the current status of the digital transformation.
Note de contenu : - Annabel Jondral, mechanical engineering and IT are becoming increasingly and IT are becoming increasingly closely linked. How is Dürr preparing for this change ?
- Dürr launched its digital factory a year ago. What exactly does it involve ?
- Can you highlight some of the starting points for future development ?
- Where do you believe the connection between digitisation and specific benefits for plant operators lies ?
- Can you give an example of an application from the digital factory ?
- Do you have any other examples of how digital solutions can improve processes ?
- Fig. 1 : A software system developed in the digital factory continuously records and analyses data from the paint shop to make painting processes more transparent and efficient
- Fig. 2 : Paint robots fitted with sensors allow large volumes of data to be capturedPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33764
in INTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 12, N° 2 (2019) . - p. 12-13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21089 - Périodique Bibliothèque principale Documentaires Disponible Dossier de sécurité pour les machines et équipements connectés dans les usines flexibles / Björn Kasper in HYGIENE & SECURITE DU TRAVAIL, N° 258 (01-02-03/2020)
PermalinkDouble diaphragm pumps for automated coating development in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 14, N° 2 (2021)
PermalinkPermalinkDürr construit un atelier très high-tech in GALVANO ORGANO, N° 871 (01-02/2019)
PermalinkEfficiency up, cycle times down / Gerhard Dimmler in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 12 (12/2015)
PermalinkEfficient and productive process for painting gearboxes in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 11, N° 2 (2018)
PermalinkEight million brake light switches per year / Ralf Högel in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 3 (03/2014)
PermalinkPermalinkElectrostatic ensures more efficient paint coating / J. Wagner in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 15, N° 4 (2022)
PermalinkPermalinkEliminating common metering and dispensing problems / Ken Walker in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 1 (01/2014)
PermalinkEnable flexible capacity expansion in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 14, N° 3 (2021)
PermalinkEnd-to-end automation for a highly reliable process in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 13, N° 2 (2020)
PermalinkEnergy-efficient conveyor system for door and window components / Frank Berg in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 2 (2019)
PermalinkEnergy-efficient deburring of precision plastic parts in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 12, N° 4 (2019)
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