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3D printing in-situ repairing system for metal part damage and repairing method thereof

An in-situ repair and 3D printing technology, applied in the field of metal parts repair, can solve problems such as potential safety hazards and high-speed train failures, and achieve the effects of improving repair quality, eliminating internal stress, and eliminating internal defects

Active Publication Date: 2019-01-08
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal damage, especially corrosion and stress corrosion, are problems that are easily encountered in the field of high-speed trains. These problems may cause high-speed train failures and pose safety hazards

Method used

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  • 3D printing in-situ repairing system for metal part damage and repairing method thereof
  • 3D printing in-situ repairing system for metal part damage and repairing method thereof
  • 3D printing in-situ repairing system for metal part damage and repairing method thereof

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Embodiment

[0056] figure 1 It shows a 3D printing in-situ repair system for damaged metal parts. Its structural features include a mechanical arm, a laser-TIG composite welding gun 1.0 installed at the end of the mechanical arm and a wire feeding device 2.0. The repair system also includes Space scanning camera device 3.0, printing path design device 4.0, interlayer temperature monitoring device 5.0, interlayer quality control device 6.0 and control terminal 7.0;

[0057] The wire feeding device 2.0 is equipped with a repairing flux-cored welding wire 2.1, and its specific preparation process is as follows: processing the matrix of the same material as the part to be repaired into a hollow tubular welding wire 2.1a, and filling the prefabricated alloy powder 2.1b tightly to the In the tube core of the hollow tubular welding wire 2.1a, the repairing flux-cored welding wire 2.1 is obtained; the diameter of the repairing flux-cored welding wire 2.1 is 0.8-1.6mm, and the diameter of the tube...

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Abstract

The invention provides a 3D printing in-situ repairing system for metal part damage and a repairing method thereof. According to the 3D printing in-situ repairing system for metal part damage and therepairing method thereof, rapid in-situ repairment can be carried out on the damage of parts of a high-speed train, the repairing quality is good, and the efficiency is high. The repairing system comprises a mechanical arm, a laser-TIG composite welding gun, a wire feeding device, a space scanning camera shooting device, a printing path design device, an interlayer temperature monitoring device, an interlayer quality control device and a control terminal, wherein the laser-TIG composite welding gun and the wire feeding device are installed at the tail end of the mechanical arm, the space scanning camera shooting device comprises a laser contour scanner for carrying out three-dimensional outline scanning on the defect portions of the parts, the printing path design device is used for acquiring three-dimensional outline data of the defect portions of the parts, setting the layer thickness of a layer to be printed, determining the printing starting point for the layer to be printed and determining the printing path of the layer to be printed, and the interlayer quality control device comprises an interlayer temperature control sub-device and a cladding layer quality optimization sub-device.

Description

technical field [0001] The invention relates to a 3D printing in-situ repair system for damaged metal parts and a repair method thereof, belonging to the technical field of repair of metal parts. Background technique [0002] 3D printing, also known as additive manufacturing (Additive Manufacturing, AM), is a process that starts from three-dimensional model data and accumulates materials layer by layer to manufacture objects, rather than the traditional subtractive manufacturing method. This method of manufacturing without blanks and molds can bring new design flexibility to the industry, reduce energy use and shorten time to market. [0003] The operating environment of high-speed trains is complex and changeable, and the components of high-speed trains are the key basic components to ensure driving and braking. Metal damage, especially corrosion and stress corrosion, are problems that are easily encountered in the field of high-speed trains. These problems may cause high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B22F10/00B22F10/36B22F10/32B22F10/25B22F12/90B22F10/34B22F10/50Y02P10/25
Inventor 朱忠尹苟国庆于金朋马前付正鸿张曦马传平郭糠李婷单美乐
Owner SOUTHWEST JIAOTONG UNIV
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