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co-cured panels

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003455
EISBN: 978-1-62708-195-5
...Abstract Abstract This article discusses the requirements for designing repairable composite structures such as a honeycomb sandwich panel construction and integrally stiffened co-cured composite structures. It reviews the general and specific design guidelines for bolted or riveted repairs...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003046
EISBN: 978-1-62708-200-6
... repair of composite primary aircraft components. Although these meager results and other attempts were not encouraging, the scarf joint with a co-cured patch that was essentially flush with the outer mold line looked promising if it could be understood and optimized. The U.S. Air Force funded...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001466
EISBN: 978-1-62708-173-3
... ply to the substrate has proved to be a slow process that is not well suited to large panels. Similarly, it is common practice in making thermoset composite aircraft panels to include a surfacing layer of film adhesive co-cured with the parent matrix to both facilitate getting the paint to adhere...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003477
EISBN: 978-1-62708-195-5
... of 15 m 2 (l50 ft 2 ). The box had 2 covers, 2 spars, and 11 ribs. The skins were co-cured in a single piece from a 180 °C (350 °F) curing tape material. Fig. 2 L-1011 advanced composite vertical fin configuration In the late 1970s, in reaction to the oil crisis, NASA created the Aircraft...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009083
EISBN: 978-1-62708-177-1
... to the cell walls ( Ref 3 ). Perpendicular to the cell walls, the honeycomb core has low strength but is reinforced by the outer composite skins. Commonly, the bond between the honeycomb core and the prepreg skins is created by a film adhesive layer. A surfacing film is often co-cured with the composite...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003452
EISBN: 978-1-62708-195-5
...) adhesive and conditioned at 49 °C (120 °F) and 95–100% relative humidity. Data represent the average of 5–10 specimens from one or two panels and typify data routinely obtained by the Air Force Research Laboratory for the represented surface preparations. (a) co, cohesive failure within the adhesive...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003405
EISBN: 978-1-62708-195-5
... in the aircraft and many commercial industries. Composite parts have grown from simple-shaped parts to large, highly contoured co-cured structures. The fabrication of co- cured structures reduces or even eliminates fasteners, mate joints, part count, subassembly, and assembly operations. Recently developed...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003411
EISBN: 978-1-62708-195-5
..., such as stringers, ribs, C-channels, I-beams, and so on, or stacked onto a contour skin tool to form a contour skin panel. The formed structural parts or skin panels are cured either as a separate structural part or skin panel, or assembled together and co-cured/co-bonded as a contoured skin panel with structural...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003475
EISBN: 978-1-62708-195-5
..., such as grounding and shielding requirements of the spacecraft bus module, but for composite laminates, a thin aluminum or copper foil is co-cured with the laminates to satisfy electron-magnetic interference shielding requirements. If needed, nickel powder is added to the adhesive to meet the electrical...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006011
EISBN: 978-1-62708-172-6
... coatings as sealers and topcoats. It also includes a section on the health effects of isocyanates. References References 1. Meier-Westhues U. , Polyurethanes: Coatings, Adhesives, and Sealants , Vincentz Network GmbH and Co. , Hannover, Germany , 2007 2. “Corrosion Protection...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003695
EISBN: 978-1-62708-182-5
.... As a nonpolar rubber, contact with aliphatic, aromatic, and chlorinated hydrocarbons causes swelling. Chlorosulfonated Polyethylene (CSM) Chlorosulfonated polyethylene (CSM) is produced on a large scale by Du Pont, where it is marketed as Hypalon (E.I. Du Pont de Nemours & Co., Inc.). Hypalon...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003041
EISBN: 978-1-62708-200-6
..., an acceptable fit can be obtained without shimming. Precured covers for highly stressed honeycomb panels are also molded on IML tools so that the contour of the mating surface of the skin and honeycomb is always the same. Typically, OML tooling is used for honeycomb panels made by the co-curing process in one...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
... is achieved with epoxy modification. Co-reactivity with epoxy resins: Formation of chain-extending oxazoline rings (co-reaction) and catalysis of excess epoxide (homopolymerization) permits formulation of hybrids containing up to 70 to 80% epoxy resin. Benefits are lower cure-temperature requirements...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006026
EISBN: 978-1-62708-172-6
.... 33 Salt fog chamber. Source: Ref 6 Fig. 26 One-sided cell testing. Source: Ref 6 Fig. 27 Chemical spot testing. Source: Ref 6 Fig. 3 Falling abrasion tester. Courtesy of Humboldt Mfg. Co. Source: Ref 3 Fig. 4 Taber rotary abraser models (a) 5135...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003457
EISBN: 978-1-62708-195-5
... is shown in Fig. 8 . The entire structure was co-cured in an oven at the materials supplier's recommended cure cycle for T300-5208. Expandable rubber was used inside the rudder to apply pressure against an outside steel tool. Fig. 8 Configuration of DC-10 graphite-epoxy upper aft rudder...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003045
EISBN: 978-1-62708-200-6
... on a convention for interpreting ply orientation. The part surface that will be tooled, or, in the event of co-curing, the precured interface surface is the most common place to start. Figure 8 illustrates one possible orientation system, but many others can be used. Once a convention has been selected...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006041
EISBN: 978-1-62708-172-6
..., hexamethylene diisocyanate Fig. 8 Micrographs comparing the erosion of (a) fluoroethylene vinyl ether white coating (0 to 1.1 μm, or 0.04 mil, of erosion) and (b) polyurethane white coating (22 to 28 μm, or 0.87 to 1.1 mil, of erosion) after 15 years of exposure. Micrographs property of Asahi Glass Co...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... and spreading have been investigated, and a detailed review is given by Kaelble ( Ref 2 ). Zisman and co-workers ( Ref 3 ) have developed an empirical method for determining a critical surface tension of solid surfaces by extrapolating contact angles, the angle formed by a droplet of liquid on the surface where...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003428
EISBN: 978-1-62708-195-5
... of anticorrosion materials and consumable materials. Barriers Barriers are the predominant method for corrosion prevention, applied either during fabrication or assembly. Fabrication-applied preventatives include materials such as fiberglass ply being co-cured onto the CFRC part surface. Another fabrication...
Book Chapter

By Barry Law
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006060
EISBN: 978-1-62708-172-6
... Fashioned Milk Paint Co., Inc. , “A Brief History of Milk Paint,”   http://www.milkpaint.com/about_history.html (accessed Jan 30, 2015) 3. Tesh G. , “Paints and Their History,” Mike Wye & Associates, Jan/Feb 2002 , http://www.mikewye.co.uk/PaintsArticle.pdf (accessed Jan 30, 2105...