Aerovías de México, S.A. de C.V. (operating as Aeroméxico, Mexico City, Mexico), recently sent a group of six mechanics for two weeks of extensive hands-on training at the Abaris-Brazil facility located at São José dos Campos, at Parque Tecnológico (PQTEC), São Paulo, Brazil over the last week of January through the first week of February, 2020.
The first 5-day class taught students how to make molds and fixtures from existing parts and mock-ups using out of autoclave (OoA) wet-layup vacuum bag processing methods that are easily achievable in a hanger environment. The two shapes that were considered included an interior panel and landing light cover assembly.
Michael Meringolo, senior technical instructor for the class (based in Reno, NV, USA) stated “the class was geared at fabricating composite tools used to repair complex shapes and features such as joggle steps, etc. — a big part of the class involves part preparation and stabilization before tool fabrication can begin.” Meringolo went on to say that “both shapes offered different challenges that lead to good discussions regarding layup concerns, tool size requirements and proper ply-template planning.” All important steps in the preparation process.
The following week students attended our Advanced Composite Structures: Damage Repair-Phase 3 course taught by Fernando Ricardo, Abaris’ instructor for Latin America. This course involves performing complex engineered repairs to composite structures that fall outside of the standard OEM structural repair manual (SRM). In class, the students were tasked with fabricating repair tooling, assessing and removing damage to the structure, providing a repair design approach, taper scarf preparation, and core and ply replacement schemes.
Because of the complexity, the repairs are done in several steps, spanning a five-day period and involve multiple heating and curing challenges that are done with hot-bond control equipment and various heat sources. Link to class picture on LinkedIn is here.
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