Master process sheets for fabrication of CFC centre fuselage parts of TEJAS (Light Combat Aircraft): part-3

Ravi, Kumar P and Sathish, Nimbal S and Sudheendra, HN and Subbarao, M (2009) Master process sheets for fabrication of CFC centre fuselage parts of TEJAS (Light Combat Aircraft): part-3. Technical Report. NAL.

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Abstract

The centre fuselage has a complex geometry with doubly curved surfaces. This presents a greater challenge in the realization of airworthy composite components. The mould ability of composites is exploited to produce composite tools, which capture the complex geometry. These parts have non-developable surfaces, which are not amenable for lay-up with computer generated transfer foils. The lay-up is done using prepregs of smaller width, which is similar to tow placement, to facilitate the lay-up. The technology to produce these complex composite components is developed over a period of time. The tools required for the layup at critical areas, assembly of cores on skin are developed to facilitate faster and controlled production. The fine tuned process for Series Production of ACA is documented in greater details with step-by-step operations augmented with figures to assist the production at shop floor.

Item Type: Proj.Doc/Technical Report (Technical Report)
Uncontrolled Keywords: Centre fulesage,composite components,Co-bonding,I-section stiffeners,lay-up tools,autoclave,female moulds,pressure intensifers,series production of LCA
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Division/Department: Advanced Composites Division, Advanced Composites Division, Advanced Composites Division, Advanced Composites Division
Depositing User: Mr. Guest NAL
Date Deposited: 27 Jul 2010 09:49
Last Modified: 27 Jul 2010 09:50
URI: http://nal-ir.nal.res.in/id/eprint/8738

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