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User-friendly data-exchange in the digital engineering / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 6-9 Titre : User-friendly data-exchange in the digital engineering : Part 6 of the series : How a web-based interface supports data-handling Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Pascal Bibow, Auteur ; Ben Liu, Auteur Année de publication : 2021 Article en page(s) : p. 6-9 Langues : Anglais (eng) Catégories : Design industriel Gestion de données Industrie 4.0 Le 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. Matières plastiques -- Industrie Matières plastiques -- Moulage par injection Numérisation Simulation par ordinateur Index. décimale : 668.4 Plastiques, vinyles Résumé : Digital engineering encompasses the complete development chain of a product, from quality requirements to the design of the product and mold, to process simulation and design. The multitude of software applications often requires the handling of information in different data formats. It is not uncommon for information to be lost in the process, which is why PIC 4.0 is researching methods for implementing continuous simulation chains. Note de contenu : - Low of information by software combination - Development of a user interface to facilitate data handling - From uploading geometry files to finally export machine settings - Optimization of quality models and neural networks - Data standards enhance individual workarounds - Fig. 1 : Linking CFD and structure simulation to get an ideal product design - Fig. 2 : The web-based user interface supports initializing an injection molding process simulation independent from the target application En ligne : https://drive.google.com/file/d/1DMGW9zgk9Oyzq7tWm-94tvKrWoUOB_n3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36280 [article]

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Implementation of industry 4.0 in injection molding and compounding / Adrian Rüedy in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 10-13 Titre : Implementation of industry 4.0 in injection molding and compounding : Part 1 of the series : Use cases badsed on strategic priorities in plastics processing Type de document : texte imprimé Auteurs : Adrian Rüedy, Auteur ; Roman Hänggi, Auteur ; Lukas Budde, Auteur ; Frank Ehrig, Auteur ; Curdin Wick, Auteur ; Daniel Schwendemann, Auteur Année de publication : 2021 Article en page(s) : p. 10-13 Langues : Anglais (eng) Catégories : Automatisation Compoundage Industrie 4.0 Le 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. Matières plastiques -- Industrie Matières plastiques -- Moulage par injection Index. décimale : 668.4 Plastiques, vinyles Résumé : The challenge in digitalization is to maintain an overview of possible technologies and to identify their benefits for use cases in the own company. Small and medium-sized companies in particular find this difficult. Based on interviews in industry, this article describes a common understanding of the most important use cases. The results capture the current direction in the plastics industry. Note de contenu : - On the way to the smart factory - Six steps to the right use cases - Application of the method in practice - Table 1 : Procedure steps for the use case evaluation - Table 2 : Description of the generic use cases - Fig. 1 : Framework of generic use cases En ligne : https://drive.google.com/file/d/1ugKRYVq1JDV30DD1ZqUfE1TlT8ABavC8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36281 [article]

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From injection molding to additive manufacturing : / Andreas Wegner in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 35-37 Titre : From injection molding to additive manufacturing : : PA66 and PBT for laser sintering Type de document : texte imprimé Auteurs : Andreas Wegner, Auteur Année de publication : 2021 Article en page(s) : p. 35-37 Langues : Anglais (eng) Catégories : Frittage laser Impression tridimensionnelle Polyamide 66 Polybutylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : The implementation of series applications in laser sintering is currently still hindered by an insufficient variety of materials. Many important engineering materials from traditional plastics processing have only been available for the process to a restricted extent up to now. PA66 and PBT considerably expand the field of applications for laser sintering by showing better properties than classic PA11 and PA12 materials in most cases. Note de contenu : - Alternatives to PA11 and PA12 - Traditional plastics for additive manufacturing - PA66 for laser sintering - PBT processable on standard machines - Filled PBT grades - Fig. 1 : Functional demonstrator of an electronic component made of PA66 produced by laser sintering: the material offers itself as an alternative to PA11 and PA12 in many areas - Fig. 2 : Components made of PBT produced by laser sintering already have a very smooth surface after printing and vapor smoothing can subsequently improve the surface quality even further - Fig. 3 : Laser-sintered special connector with clips and thin connector elements made of PBT: due to its electrical insulation properties, the PBT type used is very well suited for such components En ligne : https://drive.google.com/file/d/1HZynmizfRDDekPDmmFrxlucJ_GD9Gaho/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36282 [article]

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Dance of the robots / Andreas Armbruster in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 38-39 Titre : Dance of the robots : Extraordinary turnkey system for automotive products Type de document : texte imprimé Auteurs : Andreas Armbruster, Auteur Année de publication : 2021 Article en page(s) : p. 38-39 Langues : Anglais (eng) Catégories : Automatisation Matières plastiques -- Moulage par injection -- Appareils et matériel Presses à injecter Robots industriels Index. décimale : 668.4 Plastiques, vinyles Résumé : A more impressive sight is scarcely imaginable: NP Germany’s turnkey system around a vertical Arburg injection molding machine takes up a quarter of the production hall. During operation, six robotic systems dance a ballet to produce a pump impeller for the car coolant pump of an international automotive supplier - a level of fully automated production that was not an everyday occurrence. Note de contenu : - Six seconds faster - Filigree pockets filled by high injection flowrates - Double camera inspection - Fig. 1 : A Multilift V picks them up, inserts them into the ejector side of the mold and removes the finished parts - Fig. 2 : A six-axis robot feeds the molded parts to the camera inspection (rear area) and sorting and deposits the good parts - Fig. 3 : The transfer points of the six-axis robots, e.g. on the ultrasonic welding system, can also be approached man-ually during set-up En ligne : https://drive.google.com/file/d/1uOC5yI9EjO4LTVc5EIprIymViv5BgLkr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36283 [article]

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A production cell with fluid movements in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 40-43 Titre : A production cell with fluid movements : iQ motion control brings the injection-molding machine and robot closer together Type de document : texte imprimé Année de publication : 2021 Article en page(s) : p. 40-43 Langues : Anglais (eng) Catégories : Automatisation Matières plastiques -- Moulage par injection -- Appareils et matériel Presses à injecter Robots industriels Temps de cycle (production) -- Réduction Index. décimale : 668.4 Plastiques, vinyles Résumé : If the injection-molding machine and robot coordinate their movement sequences, this shortens the cycle time in many applications. iQ motion control from Engel now allows reliable early start combined with fully automatically optimized motion planning. The assistance system has been part of the standard kit of all new Engel viper-type linear robots since October 2021. Note de contenu : - Optimized motion planning save cycle time - Optimized motion planning in three steps - Early stard desired and supported - Multistage reliability through intensive data exchange - Who benefits from this - Fig. 1 : iQ motion control operates with optimized motion planning. The path is computed as a whole and not generated by approximate positioning of single-axis movements - Fig. 2 : The juxtaposition illustrates the high potential of iQ motion control for cycle time - Fig. 3 : Intuitive user guidance is a prerequisite for the acceptance and success of intelligent assistance systems - Fig. 4 : The trials confirm the greatly reduced waiting time with iQ motion control and early start - Fig. 5 : The reduced cycle time leads to a significantly higher output - Fig. 6 : Examples of smooth movement profiles of robot axes. Vibrations of the robot axes can also prolong the cycle time - Table 1 : Facts about iQ motion control En ligne : https://drive.google.com/file/d/1tL95CqJJKne98g5M_DUFeP8aMo1jZULU/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36284 [article]

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Process reliability is crucial / Henning Becker in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 44-46 Titre : Process reliability is crucial : Complete digital hot runner solution for automated biopolymer processing Type de document : texte imprimé Auteurs : Henning Becker, Auteur Année de publication : 2021 Article en page(s) : p. 44-46 Langues : Anglais (eng) Catégories : Automatisation Biopolymères Canaux chauffants Matières plastiques -- Moulage par injection Matières plastiques -- Moulage par injection -- Appareils et matériel Surveillance numérique Index. décimale : 668.4 Plastiques, vinyles Résumé : Ecozema is one of the leading brands for biodegradable and compostable catering products, such as tableware, cutlery or containers made of paper, compostable plastics and wood. For a cutlery series made of a new biopolymer, three full hot runner molds with digital process monitoring were developed in close cooperation with mold maker Uniform and hot runner specialist Ewikon. Note de contenu : - Demanding material processed safely and automatized - Rheological balancing via stepped flow channel diameters - Digital process monitoring provides transparency - Start-up delayed due to pandemic - Fig. 1 : The product : cutlery made of compostable biopolymer - Fig. 2 : View of the contour plate on the hot runner side of the mold for the production of the ice-cream spoon. The parts are side gated - Fig. 3 : 16-drop valve gate family mold for the production of knife and fork, delivered as hot half - Fig. 4 : The compact smart Control process monitoring unit is attached to the wiring box in a space-saving manner - Fig. 5 : With smart Control, all relevant operating parameters can be monitored in real time, shown En ligne : https://drive.google.com/file/d/1lls6kSNvRpH8GG6RgjPT9PrDNPKLAakW/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36285 [article]

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Trends in composite manufacturing / F. Stephan Auch in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 47-49 Titre : Trends in composite manufacturing : The demand for composites will keep growing in the future Type de document : texte imprimé Auteurs : F. Stephan Auch, Auteur Année de publication : 2021 Article en page(s) : p. 47-49 Langues : Anglais (eng) Catégories : Composites Matières plastiques -- Appareils et matériel Matières plastiques -- Moulage par compression Index. décimale : 668.4 Plastiques, vinyles Résumé : Press manufacturer Wickert currently sees four trends in system engineering. These include the increased use of automation solutions for gains in productivity and additional injection units for flexible, broad-scoped manufacturing. The machine manufacturer also anticipates a future rise in thermoplastic processing as well as growth potential in the use of natural fibers and natural resins. Note de contenu : - Increasing demand for automation solutions - Flexible all-round press for series production of structural components - Greatest possible versatility thanks to additional modules - Thermoplastic composites for mass production are on the rise - Natural fibers have a lot of potential given adequate customer acceptance - Fig. 1 : Composite press for research: for scientists at the Chemnitz University of Technology, Wickert developed a highly flexible four-column upper piston press which offers a high level of freedom and diversity in application - Fig. 2 : The scientists are able to automate the processes at any time as required. For this purpose, Wickert installed robot handling and integrated a number of additional interfaces in the machine control system - Fig. 3 : Organo sheets are turned into 3D components at the research institute Neue Materialien Bayreuth (NMB): composite press for high-performance thermoplastics with processing temperatures of up to 450 °C Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36286 [article]

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Short cycle times and high productivity for smart components / Christoph Bontenackels in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 50-53 Titre : Short cycle times and high productivity for smart components : Direct coating with polyurethane coatings creates opportunities in design and functionality Type de document : texte imprimé Auteurs : Christoph Bontenackels, Auteur ; Ulrich Fehrenbacher, Auteur ; Ingo Kleba, Auteur ; Markus Mechtel, Auteur ; Olaf Zöllner, Auteur Année de publication : 2021 Article en page(s) : p. 50-53 Langues : Anglais (eng) Catégories : Adhésion Matières plastiques dans les automobiles Polycarbonates Polymères -- Surfaces Polyuréthanes Revêtement autoréparant Temps de cycle (production) Index. décimale : 668.4 Plastiques, vinyles Résumé : Classic coating techniques such as spray painting are reaching their limits in the production of functionally highly integrated and elegantly decorated plastic parts. In contrast, the process chain of the direct coating process has now been optimized. Self-healing, fast-curing PU casting coatings and polycarbonate compounds that adhere firmly to each other even after aging are now available for this manufacturing process. Note de contenu : - Great freedom of design for surfaces - Specially adapted materials for the DC process - Self-healing surfaces - High transparency allows for the integration of light and sensors - Ensuring the adhesive strength between PU and PC - Tools for filling simulation - Automotive industry appreciates the DC process - Fig. 1 : White light interferograms of a scratch mark: after 48 hours, the scratch is no longer visible due to the self-healing effect - Fig. 2 : Transparency in combination: comparative transmission measurements show that Makrolon and Puroclear ideally complement each other with their respective high transparency - Fig. 3 : Results obtained in the POSI adhesion test for the combination of a standard PC and PU coating (1) and for the combination of a Makrolon Class A product type with a puroclear standard coating (2) and with a puroclear coating system optimized for PC (3) (hydrolytic storage for 72 h at 90 °C and 95 % humidity) - Fig. 4 : The demonstrator for the control panel of a center console with inductive button functions was produced in the DC process using back injection molding of a printed Makrofol PC film, and the surface was finished with a puroclear-based deep gloss - Fig. 5 : Simulation of DC mold filling using the example of a sample board (red = PU coating, blue = air): if surface structures are integrated into the PU coating, air pockets can form in the coating as a result of the coating being advanced in thicker areas. If, on the other hand, the surface structures are in the PC substrate, no air pockets are formed in the PU coating due to the uniform wall thickness and flow front - Fig. 6 : Simulation of warpage using the example of a sample panel: if the surface structures are in the PU coating, increased warpage can occur due to the greater shrinkage potential in the thicker PU coating areas. However, warpage is largely avoidable if the surface structures are incorporated into the PC substrate and thus the PU wall thickness is homogeneous and low En ligne : https://drive.google.com/file/d/1lagCAoxRfEOSdVVCskygBSlIwgyHFyTo/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36288 [article]

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Neither shaken nor stirred / Andrea Kossmann in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 54-55 Titre : Neither shaken nor stirred : Cascade extruder withmultiple screw devolatilization system for compounding Type de document : texte imprimé Auteurs : Andrea Kossmann, Auteur Année de publication : 2021 Article en page(s) : p. 54-55 Langues : Anglais (eng) Catégories : Extrudeuse à système multirotatif Matières plastiques -- Extrusion -- Appareils et matériels Index. décimale : 668.4 Plastiques, vinyles Résumé : The MRS multi-rotation system enables even the smallest particles to be homogeneously incorporated into polymer melts. The additives are introduced in the form of a suspension, and the carrier liquid is subsequently removed in a matter of seconds. Note de contenu : - How the formation of agglomerates can be avoided - To the desired polymer melt in two steps - A process for new applications - Figure : Evacuation in the MRS section: the MRS multi-rotation system removes from 3 to 250 l of water per hour from the polymer in less than 6 s - Fig. 1 : Schematic diagram of a nano compounding line fitted with an MRS evacuation system - Table 1 : Comparison of particle surface areas after injection as powder and suspension En ligne : https://drive.google.com/file/d/1-x_UHQ05ZgAWIQDEky4-mm0zHeZ2-ANf/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36289 [article]

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Perfectly round / Martin Wolfgang in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 56-58 Titre : Perfectly round : Research project to manufacture powder for selective laser sintering of plastics Type de document : texte imprimé Auteurs : Martin Wolfgang, Auteur ; Carsten Richter, Auteur ; Volker Schöppner, Auteur ; Jan Hendrik Martens, Auteur ; Moritz Rüther, Auteur Année de publication : 2021 Article en page(s) : p. 56-58 Langues : Anglais (eng) Catégories : Frittage laser Impression tridimensionnelle Ligne d'extrusion Matières plastiques -- Extrusion Poudres Index. décimale : 668.4 Plastiques, vinyles Résumé : To extend the range of polymer powders for selective laser sintering, Paderborn University in collaboration with the Maag Group has developed an extrusion line that can produce round particles with good flowability. In this line, a polymer–gas mixture is sprayed under high pressure. The challenges lay in the control system, sensor technology, and gas tightness of the line. Note de contenu : - From theory to practice : extrusion line with special requirements - Everything under control, thanks to a customized control system - Ideal combination - Fig. 1 : The PoDV 20 start-up valve ensures stable, optimized volume flow right from the start - Fig. 2 : The extrex⁶ gear pump is equipped to process very low viscosities En ligne : https://drive.google.com/file/d/1zzpVbKcD1CAkRgU14t5yX-IFKU1Lrwqj/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36290 [article]

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rPET blends for high standards / Anke Schadewald in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 59-61 Titre : rPET blends for high standards : Production of injection-moldable PET-blends from mixed plastic fractions Type de document : texte imprimé Auteurs : Anke Schadewald, Auteur ; Gillian Gerke, Auteur ; Thomas Plumbohm, Auteur ; Herbert Snell, Auteur Année de publication : 2021 Article en page(s) : p. 59-61 Langues : Anglais (eng) Catégories : Compoundage Emballages en matières plastiques -- Recyclage Matières plastiques -- Recyclage Mélanges (chimie) Polyéthylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : PET recyclates from different materials and colors pose big challenges for recyclers. Together with the University of Applied Sciences Magdeburg-Stendal, Germany, MultiPet GmbH is researching into injection-moldable blends that can be used to produce high-quality multi structured injection-molded parts from mixed PET. Only in the area of recycled clear PET samples the desired property profile was not achieved. Note de contenu : - Which problems the processing of mixed pet fractions entails - Desired technical functionality - Sampling and characterization - Expansion of the recyclables chain and processing - After injecting the test rods, analysis and optimization follows - In the practical test, the rpet blend with polycarbonate performs best - Fig. 1 : Colorful mixture : the recycling of mixed fractions from bottles, blisters and trays remains a major challenge - Fig. 2 : Bales of the specification mixed PET 70/30: during the material analysis the material was divided into the fractions other dimensionally stable PET packaging, trays with and without peeling film and blisters - Fig. 3 : rPET blend compound and injected multi-purpose test rods - Fig. 4 : Comparison of the intrinsic viscosity of PET blends and PET arnites - Fig. 5 : Forward thinking : application examples for multi structured injection molded components made from mixed PET En ligne : https://drive.google.com/file/d/1FVEz5XsaKXEBjDYk6a7Nkru2i6CgF4W8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36291 [article]

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Sustainable components from PET flakes in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 7 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 7 (2021) . - p. 62-65 Titre : Sustainable components from PET flakes : New compounds materials for durable technical applications Type de document : texte imprimé Année de publication : 2021 Article en page(s) : p. 62-65 Langues : Anglais (eng) Catégories : Bilan des émissions de gaz à effets de serre Bouteilles en matières plastiques -- Recyclage Composites à fibres courtes Composites à fibres de verre Composites à fibres longues Compoundage Matières plastiques -- Recyclage Polyamide 66 Polyéthylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : In the research project “UPcyclePET”, and together with Easicomp GmbH, Fraunhofer LBF developed a new material that had to prove its qualities in practical tests. The resulting technical component was able to demonstrate the mechanical advantages of long glass fibers, combined with the benefits of PET such as low swellability and high dimensional stability. Note de contenu : - Sustainable materials from used beverage bottles - Co2 footprint of rPET and PA66 - Component with UPcyclePET - Figure : Upcycling of used PET beverage bottles into long fiber-reinforced thermoplastics - Fig. 1 : Comparative REM images after cold fractures in correlation to achieved mechanical characteristics of different rPET-LGF50. These rPET-LGF50 differ in composition and processing and are compared with PET-SGF45 - Fig. 2 : Mechanical characteristics of rPET-LGF25 compared with those of PA66-SGF25 - Fig. 3 : The selected component made of rPET-LGF25 is a technical part in a window roller blind system that places high demands on geometrical accuracy and mechanical properties - Fig. 4 : Challenges : the left photo shows an encircled sink mark, whilst the long fibers at the sprue end are visible in the photo at right - Fig. 5 : Non-contact photo-optical measurement of components. At left, the original component made of PA66 – at right, the demonstration component made of UPcyclePET En ligne : https://drive.google.com/file/d/1Xte_veTvppQ6sZja-67_zf0vXTvJ29wI/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36292 [article]

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