Method for airborne thin-walled metal part and nonmetal part bonding

A technology for non-metal parts and metal parts, which is applied in the field of adhesive bonding of airborne thin-walled metal parts and non-metal parts, can solve problems such as deformation, achieve the effects of improving deformation, increasing processing costs, and wide application range

Active Publication Date: 2019-07-30
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of deformation that is easy to occur after high-temperature bonding of thin-walled metal parts and thin-walled non-metallic parts. It combines vacuum bonding and pre-calibration, and utilizes the interaction between the amount of deformation of the parts and the amount of pre-calibration. Offset and compensation, so as to obtain a glued joint that is close to the ideal state after gluing

Method used

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  • Method for airborne thin-walled metal part and nonmetal part bonding
  • Method for airborne thin-walled metal part and nonmetal part bonding
  • Method for airborne thin-walled metal part and nonmetal part bonding

Examples

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Embodiment 1

[0062] The material of the thin-walled non-metal parts in this example is epoxy glass fiber composite material, and the thin-walled metal parts are magnesium-aluminum alloy (aluminum alloy) parts. Process metal thin-walled parts, non-metallic thin-walled parts and glued tooling molds (aluminum film molds) respectively according to the existing digital models, and no pre-calibration processing has been carried out at this time.

[0063] The specific operation steps are as follows:

[0064] 1. Bonding: Preferably, 5 pairs of metal thin-walled parts and non-metallic thin-walled parts are bonded. After bonding, the two tips of the combined parts are deformed downward (negative direction of Z axis).

[0065] Among them, the specific operation of gluing is: attach the adhesive film to the metal thin-walled parts or non-metallic thin-walled parts. and use positioning pins to position them to prevent the dislocation of the two in the subsequent process; wrap the closed assembly with ...

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Abstract

The invention provides a method for airborne thin-walled metal part and nonmetal part bonding, and belongs to the technical field of aviation product bonding. The method comprises the steps of bonding, deformation amount measuring, metal thin-walled part pre-correcting, bonding tool mold finishing, bonding after pre-correcting and finishing and finished product detecting. According to the method for airborne thin-walled metal part and nonmetal part bonding, a metal part is pre-corrected in the reverse direction of the bonding part deformation tendency, increment or decrement supplement machining is conducted on a bonding tool mold in the reverse direction of the deformation tendency, the metal thin-walled part and a nonmetal thin-walled part are completely attached to a tool in a vacuumizing mode when bonding is conducted, vacuumizing is kept in the whole process, bonding curing is conducted through a drying box or a hot-pressing tank, after pressure maintaining treatment is conducted,and the bonding part approaching the ideal state is obtained through counteracting and compensating of the deformation amount and the pre-correction amount of the parts.

Description

technical field [0001] The invention belongs to the technical field of adhesive bonding of aviation products, in particular to a method for adhesive bonding of airborne thin-walled metal parts and non-metallic parts. Background technique [0002] Adhesive bonding technology is a non-detachable connection method commonly used in aerospace products. Glue connection has high efficiency, light structure, good fatigue resistance, sealing, shock absorption and insulation performance, and can prevent cracks from expanding, and has good damage safety. Therefore, the glue connection method is widely used in modern aircraft. [0003] Since the surfaces of modern aircraft are mostly curved surfaces, the structural parts that conform to the surface of the aircraft are generally thin-walled and curved. This conformal structural part is usually a thin-walled metal part and a thin-walled non-metallic part bonded together by glue. However, it is difficult to process thin-walled and specia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B11/00
CPCF16B11/006
Inventor 周蜜张永正唐缨
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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