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Numerical control drill jig

Grant number: 20/13779-0
Support type:Research Grants - Innovative Research in Small Business - PIPE
Duration: December 01, 2021 - July 31, 2023
Field of knowledge:Engineering - Aerospace Engineering
Principal researcher:Glauber Lopes Mosqueira
Grantee:Glauber Lopes Mosqueira
Company:ELECTROIMPACT DO BRASIL INDUSTRIA AEROESPACIAL LTDA
CNAE: Fabricação de máquinas e equipamentos para uso industrial específico não especificados anteriormente
City: Jacareí
Assoc. researchers: Allison Fauat Schraier

Abstract

Drill jigs are the most common tools used in the drilling of aircraft structures in areas not accessible by automated equipment. They are robust, of simple operation and low maintenance, but with important drawbacks: relatively high manufacturing costs and long lead times, and no flexibility as each drill jig is fit for a specific and unique area and hole pattern. The overall goal of this project is to develop a prototype that is: reconfigurable by numerical control, to be used in multiple regions; and compact, in order to enter areas currently only accessible to conventional drill jigs. A TRL 7 shall be attained. The evaluation of the maturity level constitutes the uncertainty element and therefore the research and will be based in the hole quality analysis in the form of metrics on shape tolerances, surface roughness and process capability, among others. The expected outcome is to extend to such areas the benefits resulting from the flexibility of an automated and digital tool, including a significant cost reduction in reworking/discarding drill jigs as a result of typical updates in the aircraft part, and a drastic reduction in the cycle time needed to drill a new hole pattern for the first time. (AU)

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