Additive adolescence / Olivier Kessling in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 10 (10/2018)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 10 (10/2018) . - p. 24-30 Titre : Additive adolescence : Materials manufacturers and process developers face growing demands in 3D printing Type de document : texte imprimé Auteurs : Olivier Kessling, Auteur Année de publication : 2018 Article en page(s) : p. 24-30 Langues : Anglais (eng) Catégories : Automobiles -- Freins Avions -- Matériaux Biomatériaux Composites à fibres de carbone Impression tridimensionnelle Polyamide 6 Polycarbonates Polyéther éther cétone Polymères hautes performances Index. décimale : 668.4 Plastiques, vinyles Résumé : Much as when injection molding materials were being developed 30 years ago, the current trend in additive production is toward higher melting materials and materials with improved mechanical properties. The latter can be achieved, for example, by fiber embedding. In machine technology, the developments are increasingly aimed at adapting processing times, sensor systems, and quality monitoring to the demands of high-tech companies. Note de contenu : - High-performance plastics for filament printers and carbon nanotube embedding - Increeasing activity among materials manufacturers - Bio-based and biologically degradable materials - Materials for tool and mold making - Faster and more precise - futher developments in processing - Trends in the additive production of metal parts - Mold inserts with conformal cooling - Using the process chain of powder injection molding for 3D printing - Part finishing treatment - Figure : Sample of a complex part 3D-printed from PA6 - Fig. 1 : 3D-printed parts from materialise for th ecabin interior of Airbus airplanes - Fig. 2 : Fixture made from Antero 800NA to replace a conventionally manufactured PEEK part for mounting hydraulic parts on an airplane wing - Fig. 3 : Carbon nanotubes embedded in plastics include conductive structures in USB demonstrators, thereby enabling an LED to glow - Fig. 4 : Design study made from a carbon fiber-filled polyamide. The part was produced in a laser sintering process - Fig. 5 : Roadmap for materials development at HP. The next steps will probably be toward high-performance materials, flame-retardant and hollow glass sphere-filled materials - Fig. 6 : This model of the heart of a young girl named Jemma was created by an HP Jet Fusion 500/300 series 3D printer. The model helped surgeons prepare for a complicated heart OP - Fig. 7 : This part made from PC with 13% carbon fiber content was melting pot and stirred by rotary motion of a spiral (transparent) and a PC with 30 % CF (black) was put in the printer manufactured from two raw materials. A simple mixture of pure PC - Fig. 8 : Developed by Bugatti: this 8-piston monoblock brake caliper is the world's first brake caliper made by 3D printing and also the largest generatively produced titanium part. Thanks to optimized structures, a 40% weight saving was possible - Fig. 9 : Additively produced mold insert with confor¬mal cooling chan¬nels. The mold insert is produced in layers of metal powder - Fig. 10 : Production system from Desktop Metal. The so-called Single Pass Jetting technology is claimed to be 100 times faster than laser based systems. Market introduction is planned for 2019 - Fig. 11 : Powershot S blasting creates a homo-geneous surface quality and reduces the roughness typical of additively produced - Fig. 12 : Schematic illustration of chemical part smoothing. The untreated part is on the left, the one on the right has gone through the smoothing process Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31435 [article]

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Applications of cured-in-place gasketing technology / David DiNicola in ADHESIVES AGE, Vol. 37, N° 4 (04/1994)  

[article]  inADHESIVES AGE > Vol. 37, N° 4 (04/1994) . - p. 16-22 Titre : Applications of cured-in-place gasketing technology Type de document : texte imprimé Auteurs : David DiNicola, Auteur ; Ronald E. Ledoux, Auteur Année de publication : 1994 Article en page(s) : p. 16-22 Langues : Américain (ame) Catégories : Adhésifs dans les automobiles Antiblocage de sécurité (freinage) Automobiles -- Freins Joints d'étanchéité Produits d'étanchéité Index. décimale : 668.3 Adhésifs et produits semblables Résumé : These can histories represent a sampling of the applications now in process or planned for cured-in-place LSR gaskets. As efforts continue to improve manufacturing efficiency and product quality through the implementation of new manufacturing technologies, suppliers of sealant materials face the challenge of formulating new, high performance sealants to satisfy the needs of these applications. Increasingly shorter cure times, improved adhesion to a wider variety of subtrates and durometers tailored for specific compression specifications are a few of the requirements associated these development efforts. At the same time, research and development by the manufacturers of equipment to precisely meter, mix and dispense the sealants is necessary to ensure the successful integration of these products into the assembly process. Note de contenu : - INDUSTRY TRENDS - CASE HISTORY I : Rocker arm cover gasket - Sequence of operations - Equipment description - CASE HISTORY II: LAD antilock brake system faceplate - Sequence of operations - Equipment description - System support - CASE HISTORY III : Anti-lock brake system (ABS) electronics module - Sequence of operations - CASE HISTORY IV : Upper and lower timing belt covers for the Nissan motor manufacturing corp. VG-30E engine En ligne : https://drive.google.com/file/d/1Vp71kNdnXscLkwp2hwKuPqXxmmq4ct-w/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20817 [article]

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From cold to hot / Ralph Kettl in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 11 (11/2010)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 100, N° 11 (11/2010) . - p. 62-63 Titre : From cold to hot Type de document : texte imprimé Auteurs : Ralph Kettl, Auteur Année de publication : 2010 Article en page(s) : p. 62-63 Langues : Anglais (eng) Catégories : Automobiles -- Freins Polyamides Un polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine. Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères. Polymères -- Propriétés thermiques Tubes Index. décimale : 668.4 Plastiques, vinyles Résumé : Tubes under the Hood - A specially developed polyamide is setting new standards when it comes to the resistance of tubes to temperature extremes. In tubes for brake boosters, the combination of good low-temperature flexibility with excellent stiffness at high temperature offered by a tailor-made polyamide is proving particularly valuable. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10357 [article]

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