Thermoplastic composite material skin stringer structure double-coil induction welding device and method

Abstract

The invention discloses a thermoplastic composite material skin stringer structure double-coil induction welding device and method. The device comprises an induction welding machine, a computer control system, a cooling device and a double-coil induction welding device, wherein the induction welding machine is used for controlling parameters in the welding process; the computer control system adjusts the width between two coils according to data fed back by a laser range finder; the cooling device is used for cooling the coils; and the double-coil induction welding device is used for welding a thermoplastic composite material skin stringer structure. The device can adapt to induction welding of skin stringer structures with different stringer widths, and synchronous pressurization and welding of the two sides of a stringer can be achieved. The device and the method have the advantages that post-welding deformation and post-welding stress of the skin stringer structure can be effectively reduced, and compared with the prior art, the welding forming quality and efficiency are better.

Description

[0001] field: [0002] The invention relates to a device and method for double-coil induction welding of a thermoplastic composite material skin stringer structure, which belongs to the field of composite material induction welding, and is specifically applied to the field of induction welding of thermoplastic composite material skin stringer structures. Background technique: [0003] The aviation field pays more and more attention to the lightweight of aircraft structures. Composite materials have become one of the important materials for aircraft structure manufacturing. Among them, thermoplastic composite materials have good toughness, weldability, repairability, recyclability and comparative Advantages such as short processing time have gradually attracted widespread attention. Skin stringer structures are very common in the manufacturing process of aerospace and other major equipment. For the connection of skin stringer structures, conventional methods include adhesive bo...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of large structural deformation and large post-weld stress caused by the existing induction welding technology to the welded skin stringer structure, the present invention provides a device for double-coil induction welding of thermoplastic composite skin stringer structures and method

The device uses double coils to simultaneously weld both sides of the stringer structure, and uses pressure rollers to apply pressure to the skin stringer structure, which not only solves the problem of large deformation stress in welding the structure, but also makes the welding process more efficient

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