Method for repairing electromagnetic shielding copper mesh of helicopter composite structural member

The invention belongs to the field of composite material forming, and relates to a repairing method for an electromagnetic shielding copper net of a helicopter composite material structural part. The conductive adhesive is prepared from epoxy resin, an amine curing agent and silver powder according to a certain mass ratio, the prepared adhesive solution is uniformly coated on the damaged part of a copper net on the surface of a part by using a spatula or a brush, and the three components are mixed and then are scraped and coated within 2 hours. And placing at normal temperature for 24-48 hours for curing. And after the glue solution is cured, carefully polishing the glued part by using 120-150-mesh abrasive paper until the surface is smooth and flat and has no obvious bulges. After the damaged part of the copper wire mesh is coated with the conductive glue solution, the copper wire mesh on the surface of the part can form continuous conduction, and the part becomes a shielding body and does not generate elect