Evaluation of substrates for rapid tooling applications / A. O'Connor in SAMPE JOURNAL, Vol. 49, N° 1 (01-02/2013)  

[article]  inSAMPE JOURNAL > Vol. 49, N° 1 (01-02/2013) . - p. 34-39 Titre : Evaluation of substrates for rapid tooling applications Type de document : texte imprimé Auteurs : A. O'Connor, Auteur ; J. Miller, Auteur ; M. Ramulu, Auteur Année de publication : 2013 Article en page(s) : p. 34-39 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composites Composites -- Appareils et matériels Composites -- Propriétés mécaniques Composites -- Propriétés thermiques Conception technique Coût -- Contrôle Durée de vie (Ingénierie) Evaluation Outillage Résistance des matériaux Tags : Substrat  Evaluation  'Outillage  composite' Index. décimale : 668.4 Plastiques, vinyles Résumé : The need to fabricate composite parts for prototype applications and repair incidents requires lay-up tooling that can be rapidly fabricated. One option for laying tooling involves the use of substrates that are suitable for composite part curing. These substrates may utilize secondary coatings or laminates to serve as the tool surface. In addition to thermal performance, dimensional stability, and durability, the ability to shape the substrate material to the desired geometric net shape while satisfying surface integrity requirements in the shortest period of time, at the lowest cost is of key importance. Challenges of current tooing substrates include : brittleness, porosity, and susceptibility to thermal effects, to name a few. The nature of these material characteristics makes finding optimal processing conditions for rapid fabrication a time consuming task. This work presents a method to evaluate different substrates material systems for use in composite tooling applications. Note de contenu : - TOOLING SUBSTRATE MATERIALS - SURFACE GENERATION IN TOOLING SUBSTRATA MATERIAL - RESULTS AND DISCUSSION : Surface topography - Surface integrity En ligne : http://www.nxtbook.com/nxtbooks/sampe/journal_20130102/index.php?startid=51#/36 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17780 [article]

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Machining and drilling of Carbon Fiber Reinforced Plastic (CFRP) composites / J. Miller in SAMPE JOURNAL, Vol. 49, N° 2 (03-04/2013)

[article]  inSAMPE JOURNAL > Vol. 49, N° 2 (03-04/2013) . - p. 36-46 Titre : Machining and drilling of Carbon Fiber Reinforced Plastic (CFRP) composites Type de document : texte imprimé Auteurs : J. Miller, Auteur ; E. D. Eneyew, Auteur Année de publication : 2013 Article en page(s) : p. 36-46 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composites à fibres de carbone Coupe Perçage et alésage Usinage Index. décimale : 668.4 Plastiques, vinyles Résumé : The use of carbon fiber reinforced polymers (CFRP) has been steadily increasing because of superior specific strength, corrosion resistance, and fatigue performance. Machining of CFRP structures is often necessary for achieving final dimensions following cure and for assembly operations. Edge trimming or milling is the mot common secondaryprocessing method for achieving net engineering geometry and hole drilling is the most common method for producing features necessary for assembly. There are significant differences between the machining of metals and composites due to the inhomogeneity and anisotropy of the material system. The choice of constituent materials and fiber orientation has the most significant influence on the cutting process. A common concern when drilling and trimming CFRP materials is machining quality, which is essential for dimensional accuracy, and minimizing defects. Chip formation modes, abrasiveness of the fibers, cutting tool selection, and cutting conditions impact hole and edge quality of machined components. This paper will provide some recent experimental results along with a review of the issues and challenges for edge trimming and drilling of CFRP materials Note de contenu : - EXPERIMENTAL WORK : Edge trimming and drilling experiments. Materials - Experimental procedures - RESULTS AND DISCUSSIONS : Edge trimming - PCD and carbide cutters - Abrasive diamond cutters - Drilling - Abrasive waterjet cutting and trimming Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18011 [article]

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