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searchwing-fiber [2021/03/07 11:53] – Add test results beckmanfsearchwing-fiber [2022/03/26 15:33] (current) – [Fiber Fuselage] add milling beckmanf
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   * Fiberwings will pave the way to possible solar cell support for extending range   * Fiberwings will pave the way to possible solar cell support for extending range
  
-The big drawback is missing experience with aircraft design and fiber technology.+The big drawback is missing experience with aircraft design and fiber technology. Further Component tests are here: 
 + 
 +  * [[sw-fiber-wing|SearchWing Fiber Wing]] 
 +  * [[sw-fiber-servo|SearchWing Fiber Servo]] 
 +  * [[sw-fiber-fuselage|SearchWing Fiber Fuselage]] 
 + 
 +As description about the tooling is here: 
 + 
 +[[sw-milling|Milling at Hochschule Augsburg]]
  
 ==== Strategy ==== ==== Strategy ====
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 The Deskproto CAM software needs some RAM depending on the detail level. The Deskproto Software is [[https://www.hs-augsburg.de/homes/beckmanf/dokuwiki/doku.php?id=breakout#deskproto|installed on the breakout]]. The Deskproto CAM software needs some RAM depending on the detail level. The Deskproto Software is [[https://www.hs-augsburg.de/homes/beckmanf/dokuwiki/doku.php?id=breakout#deskproto|installed on the breakout]].
 +
 +==== Design ====
 +
 +Stefan Laimer and Maximilian Schäferle did a first {{ ::g4-faserverbund.pdf |concept design}} of a fiber fuselage during the Systems Engineering 2 course in WS20/21. This design is used for the first lamination tests. The design is available in [[https://cad.onshape.com/documents/462341583a3ce9a0ce3df71b/w/451ff5ec3fe9085daef8b15f/e/eae436c607beb291f9462ec2|"Onshape - Fuselage Shell"]].
 +
 +==== Materials ====
 +
 +The [[searchwing-fiber##membrane_supported_vacuum_infusion_composyst|membrane supported vacuum infusion]] tests are done with the material from Composyst in Landsberg. The other tests with hand lamination and vacuum pressure are done with material from R&G.
 +
 +=== Vacuum Pressure Materials ===
 +
 +  * [[https://shop1.r-g.de/art/100130|R&G Epoxidharz L + Härter EPH 161 (90 min) - 100130]]
 +  * [[https://shop1.r-g.de/art/190118|R&G Glasgewebe 160g/m2 - 190118]]
 +  * [[https://shop1.r-g.de/art/190181-100|R&G Abreißgewebe 64g/m2 - 190181-100]]
 +  * [[https://shop1.r-g.de/art/390190|R&G Vakuumfolie BLAU gelocht (P1) - 390190]]
 +  * [[https://shop1.r-g.de/art/390180|R&G Breatex™ Saug- und Formvlies 150 g/m² - 390180]]
 +  * [[https://shop1.r-g.de/art/390165|R&G Vakuum-Folienschlauch (PE/PA/PE), 1200 x 0,1 mm - 390165]]
 +
 +
 +Neu für Flügel:
 +
 +  * [[https://shop1.r-g.de/art/190105|R&G Glasgewebe 49 g/m² ( Interglas 02037, Finish FE 800, Leinwand) 110 cm - 190105]]
 +  * [[https://shop1.r-g.de/art/190112-PA-100|Glasgewebe 80 g/m² (Silan, Köper) 100 cm - 190112-PA-100-4]]
 +  * [[https://shop1.r-g.de/art/190200|Aramidgewebe 61 g/m² (Style 120, Aero, Leinwand) 100 cm - 190200]]
 +  * [[https://shop1.r-g.de/art/210130|R&G 3M™ Glass Bubbles 0,12 g/cm³ - 210130]]
 +  * [[https://shop1.r-g.de/art/390175-200|R&G Vakuumfolie PO120, 200 cm - 390175]]
 +  * [[https://shop1.r-g.de/art/390183|R&G Diatex Fließhilfe DIANET 135, Breite 200 cm - 390183]]
 +  * [[https://shop1.r-g.de/art/390184|R&G Diatex Fließhilfe OM 70, Breite 200 cm - 390184]]
 +  * [[https://shop1.r-g.de/art/390403|R&G Dupont PET-Folie Mylar® A 350, 100 cm - 390403]]
 +  * [[https://shop1.r-g.de/art/165110|R&G Folientrennmittel PVA - 165110]]
 +
 +=== Membrane Supported Vacuum Infusion Process (Composyst) Materials ===
 +
 +  * [[https://www.composyst.com/download/4405|VAP Membrane CS/E - 0202010021]]
 +  * [[https://www.hexion.com/CustomServices/PDFDownloader.aspx?type=tds&pid=1d6cc73d-5814-6fe3-ae8a-ff0300fcd525|Hexion EPIKOTE™ Resin MGS™ RIMR 135 (Harz) + EPIKURE™ Curing Agent MGS RIMH137 (Härter) (240 min) - 0250000022]]
 +  * Lochfolie, Fließhilfen, Aluröhrchen, 8mm Schlauch u.s.w.
 +
 +
 +=== Gewebebänder, Mumpe und Gelcoat ===
 +  * [[https://shop1.r-g.de/art/200115|R&G Glasgewebeband 130 g/m² (Silan, Leinwand) 25 mm - 200115]] und weitere Glasgewebebänder 130g/m2 40mm, 225g/m2 20mm, 225g/m2 40mm
 +  * [[https://shop1.r-g.de/art/210100|R&G Glasfaserschnitzel 3 mm - 210100]]
 +  * [[https://shop1.r-g.de/art/210122|R&G Thixotropiermittel TM 100, Dose/ 75 g (ca. 1 l) - 210122]]
 +  * [[https://shop1.r-g.de/art/120100|R&G EP-Gelcoat farblos + Härter S (15 min) - 120100]]
 +
 +=== Anschlüsse, Schläuche ===
 +
 +  * [[https://shop1.r-g.de/art/390170|R&G Vakuum-Dichtband GRAU, 3 x 12 mm x 15 m (bis 90 °C) - 390170]]
 +  * [[https://shop1.r-g.de/art/3901571M|R&G Vakuum-Anschluss VA 1 (beständig bis 100 °C)]]
 +  * [[https://shop1.r-g.de/art/390110|R&G Pumpenschlauch (Ø 6/8 mm) aus LD-PE]]
 +  * PVC Schlauch ID 8mm
 +  * [[https://www.carlroth.com/de/de/schlaeuche-fuer-spezielle-anwendungen/schlauch-rotilabo-gummi-vakuumausfuehrung/p/0680.1|Schlauch ROTILABO® Gummi Vakuumausführung, 8 mm, 18 mm]]
 +  * [[https://www.carlroth.com/de/de/schlaeuche-fuer-spezielle-anwendungen/schlauch-rotilabo-gummi-vakuumausfuehrung/p/0681.1|Schlauch ROTILABO® Gummi Vakuumausführung, 10 mm, 20 mm]]
 +
 +=== Kleber ===
 +
 +  * [[https://www.3mdeutschland.de/3M/de_DE/p/d/b40066473/|3M™ Scotch-Weld™ 2-Komponenten-Konstruktionsklebstoff auf Epoxidharzbasis DP490]]
 +  * [[https://www.3mdeutschland.de/3M/de_DE/p/d/b40066435/|3M™ Scotch-Weld™ 2-Komponenten-Konstruktionsklebstoff auf Epoxidharzbasis DP100]]
 +  * [[https://shop1.r-g.de/art/100100|R&G Epoxidharz L + Härter S (15 min) (Eigentlich nicht als Kleber gedacht)]]
 +
 +=== GFK Platten ===
 +
 +  * [[https://shop1.r-g.de/art/620620540|GFK Platten 0.5mm, 1mm und 1,5mm]]
  
 ==== First milling ==== ==== First milling ====
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   * [[https://youtu.be/s8uSAbvXaIA|Youtube: SearchWing - Wassertest]]   * [[https://youtu.be/s8uSAbvXaIA|Youtube: SearchWing - Wassertest]]
  
-There must still be air/voids in the laminate although it seems optically in good condition. +There must still be air/voids in the laminate although it seems optically in good condition. The fuselage half has a weight of 116g.  
 + 
 +{{::sw-2020305-80cm-rumpf.jpg|First Laminate - Weight 116g}}
  
 === Ideas === === Ideas ===
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   * Hand lamination without vacuum. The hand lamination will have more resin in the laminate and the surface seems closed. No idea if the voids are reduced or if there is just a closed surface.   * Hand lamination without vacuum. The hand lamination will have more resin in the laminate and the surface seems closed. No idea if the voids are reduced or if there is just a closed surface.
   * Vacuum infusion. Compared to vacuum bagging literature claims that voids are reduced with this technique. The VAP membrane technology might be a way. This promises a void free laminate with a high fiber content.    * Vacuum infusion. Compared to vacuum bagging literature claims that voids are reduced with this technique. The VAP membrane technology might be a way. This promises a void free laminate with a high fiber content. 
 +  * Degassing the resin. Is probably useless for hand lamination because bubbles are introduced during the lamination process.
  
 (Friedrich Beckmann, 7.3.2021) (Friedrich Beckmann, 7.3.2021)
  
 +==== Membrane supported Vacuum Infusion (Composyst) ====
 +
 +A first lamination test with membrane supported vacuum infusion technology was done at Composyst in Landsberg on 19.3.2021. The results are very promising. I have made a [[https://youtu.be/bqjWxYAFjBQ|video]] to show the differences between vacuum compression and membrane assisted vacuum infusion technology. (TODO: Describe the process). 
 +
 +Friedrich Beckmann (1.8.2021).
  
  
  • searchwing-fiber.1615114413.txt.gz
  • Last modified: 2021/03/07 11:53
  • by beckmanf