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Device for repairing aircraft thin-walled beam through laser deposition and repairing method thereof

A technology of laser deposition and repair method, applied in metal material coating process, coating and other directions, can solve problems such as increasing production cost, reducing repair quality, edge sagging of aircraft thin-walled beams, etc., achieving low-cost repair, improving comprehensive performance, Repair the effect of the slump phenomenon

Active Publication Date: 2020-10-02
常州江苏大学工程技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aircraft thin-walled beam repaired by the existing laser deposition repair technology has serious edge collapse, which greatly reduces the repair quality and increases the production cost.

Method used

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  • Device for repairing aircraft thin-walled beam through laser deposition and repairing method thereof
  • Device for repairing aircraft thin-walled beam through laser deposition and repairing method thereof
  • Device for repairing aircraft thin-walled beam through laser deposition and repairing method thereof

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Experimental program
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Effect test

Embodiment 1

[0052] like Figure 1~4 As shown, the present invention provides a device for repairing thin-walled beams of aircraft by laser deposition, comprising: a heating plate 2 for carrying thin-walled beams 1 of aircraft to be repaired; a laser deposition platform 3 for repairing thin-walled beams of aircraft to be repaired; The magnetic field auxiliary platform 4 is used to provide a magnetic field of variable direction and intensity, and the alternating magnetic field auxiliary platform 4 is fixed on the laser deposition platform 3; the liquid nitrogen forced cooling device 5 is used to cool the repaired aircraft thin-walled beam 1 wherein the aircraft thin-walled beam 1 to be repaired is carried on the heating plate 2 for heating, and is repaired by the laser deposition platform 3 under the magnetic field environment provided by the alternating magnetic field auxiliary platform 4, and then forced by the liquid nitrogen The repaired aircraft thin-walled beam 1 is cooled under the a...

Embodiment 2

[0066] Embodiment 2 can be performed on the basis of Embodiment 1.

[0067] like Figure 1~4 As shown, Embodiment 2 provides a repair method for repairing thin-walled beams 1 of an aircraft by laser deposition. The repair method includes, during the repair process, providing an alternating magnetic field. The strength of the alternating magnetic field can be adjusted, and the direction can also be changed. , according to different processing parameters to achieve the adjustment of the strength and direction. Wherein, the processing parameters include processing position, processing area and processing thickness, and the strength of the alternating magnetic field is adjusted according to different processing thicknesses, that is, the deeper the thickness, the greater the strength of the alternating magnetic field. Wherein, the position of the alternating magnetic field only needs to ensure that it can act on the molten pool of laser cladding.

[0068] As for the processing po...

Embodiment 3

[0074] like Figure 1~4 As shown, the third embodiment is a supplement to the whole process of the second embodiment.

[0075] S1, perform non-destructive testing on the area to be repaired of the thin-walled beam 1 of the aircraft, cut and trim the damaged part of the thin-walled beam to be repaired in a regular manner, polish, clean and dry, and clamp it on the laser deposition platform 3;

[0076] S2, according to the size and shape of the prefabricated repair, use the computer 6 to build a three-dimensional model and plan the path to feed back to the laser deposition platform 3;

[0077] S3, heating the aircraft thin-walled beam 1 to be repaired to 300°C~600°C, and feeding back the temperature to the computer 6;

[0078] S4, adjust the alternating magnetic field, input the preset alternating magnetic field program in the computer 6, input the processing parameters to the laser deposition platform 3, and perform the first layer of laser deposition repair processing. At thi...

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Abstract

The invention relates to a device for repairing an aircraft thin-walled beam through laser deposition and a repairing method thereof. The device comprises a heating plate, a laser deposition platform,an alternating magnetic field auxiliary platform and a liquid nitrogen forced cooling device, wherein the heating plate is used for carrying the aircraft thin-walled beam to be repaired; the laser deposition platform is used for repairing the aircraft thin-walled beam to be repaired; the alternating magnetic field auxiliary platform is used for providing a magnetic field with the variable direction and intensity, and the alternating magnetic field auxiliary platform is fixed to the laser deposition platform; and the liquid nitrogen forced cooling device is used for cooling the repaired aircraft thin-walled beam. The aircraft thin-walled beam to be repaired is carried on the heating plate for heating and repaired through the laser deposition platform under the magnetic environment providedby the alternating magnetic field auxiliary platform, and then the repaired aircraft thin-walled beam is cooled under the action of the liquid nitrogen forced cooling device. The device for repairingthe aircraft thin-walled beam through laser deposition is good in overall repairing effect, high in efficiency, and low in cost.

Description

technical field [0001] The invention relates to laser deposition repair equipment, in particular to a laser deposition repair device for aircraft thin-walled beams and a repair method thereof. Background technique [0002] With the continuous development of aviation manufacturing technology, the structural design of thin-walled beams of aircraft tends to be more complex and integrated. alloy materials for production. Therefore, the thin-walled beam of the aircraft is expensive, the process is complicated, and the production cycle is long; at the same time, it is very vulnerable to cracks and other damages under the action of huge alternating load forces during service. [0003] Laser Deposition Repair (LDR) technology is a laser remanufacturing technology that emerged in the 1980s. This technology is based on laser cladding and rapid prototyping technology. The geometric shape of the part, using the high-energy laser heat source to directly superimpose the geometric shape ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B23P6/00
CPCB23P6/00C23C24/103
Inventor 鲁金忠姚建华郎方年徐祥罗开玉
Owner 常州江苏大学工程技术研究院
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