Manufacturing process of welded honeycomb core

Abstract

The invention belongs to the manufacturing process of honeycomb cores and particularly relates to a manufacturing process for a welded honeycomb core. Metal foil materials with brazing filler metal are adopted as base materials, so that the problems of difficulties of directly placing the brazing filler metal on the metal foil materials and poor brazing filler metal positioning accuracy in the prior art are solved. Furthermore, binders are adopted to carry out preforming on the honeycomb core, the dimensional accuracy of the honeycomb core can be guaranteed, and thus the strength of the honeycomb core is guaranteed. Meanwhile, in the laminating process, changes of the shape of the binders coated on the foil materials cannot be affected, improvement of the laminating speed and laminating precision of the foil materials is facilitated, and the production speed and production quality of the honeycomb core are improved.

Description

technical field [0001] The invention belongs to a manufacturing process of a honeycomb core, in particular to a manufacturing process of a welded honeycomb core. Background technique [0002] Metal honeycomb panels have been widely used in aerospace, aircraft, trains, ships, construction and other fields due to a series of advantages such as light weight, high specific strength, high rigidity, good stability, heat insulation and sound insulation, and no pollution. At present, the common honeycomb panels at home and abroad, whether it is the core material itself or the composite between the panel and the core material, are all glued, and the connection method is physical bonding. Its strength, service life and allowable working environment are largely affected by Adhesive performance constraints. For example, in a working environment with high humidity, frequent vibration (including alternating positive and negative air pressure), and high or low temperature, the panel is ea...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the deficiencies of the prior art. The present invention adopts the metal foil material with solder as the base material, which overcomes the difficulty of directly placing the solder material on the metal foil material and the problem of poor positioning accuracy of the solder material in the prior art. , further, the present invention uses adhesives to preform the honeycomb core, which can ensure the dimensional accuracy of the honeycomb core, and then ensure the strength of the honeycomb core. At the same time, the present invention will not affect the coating on the foil during the lamination process. The change of the shape of the binder is beneficial to improve the speed and accuracy of foil stacking, and improve the production speed and quality of honeycomb core