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A kind of increase and decrease compound intelligent repair method of metal parts

An intelligent repair and component technology, applied in geometric CAD, special data processing applications, etc., can solve the problems of low machining accuracy, large workload, and difficulty in guaranteeing spray quality, and achieve high-quality repair effects.

Active Publication Date: 2021-02-05
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the repair work of conventional metal parts is mainly done manually, limited by the shape of the parts to be repaired and damage defects, the processing accuracy of conventional metal parts repair technology is not high, and the quality of spraying is difficult to guarantee
Moreover, after metal parts are repaired using conventional techniques, further manual machining is required to repair the rough and uneven surface of the parts and remove redundant repair parts, which requires a large workload and extremely high labor costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Specific embodiments of the present invention will be further described in detail below.

[0026] An increase and decrease composite intelligent repair method for metal parts, comprising the following steps:

[0027] Step S1: Fix the metal part to be repaired to the processing platform of the CNC machine tool, use a three-dimensional scanning device to scan the surface of the metal part to be repaired, and obtain the three-dimensional XYZ absolute coordinates of each point on the surface of the metal part to be repaired, using computer software, And construct the solid model of the metal parts to be repaired according to the three-dimensional XYZ absolute coordinates. The three-dimensional scanning device may be a laser scanner or a raster three-dimensional scanner, and the raster three-dimensional scanner may be white light scanning or blue light scanning. The measurement accuracy of the three-dimensional scanning device is 0.001-0.005mm.

[0028] Due to the large am...

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PUM

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Abstract

The invention discloses an increase-decrease composite intelligent repair method for metal parts, which uses a three-dimensional scanning device to obtain a solid model of the metal part to be repaired; compares the difference with the undamaged solid model of the metal part to obtain the missing part that needs to be repaired Model; Additive filling path planning for the missing part model that needs to be repaired; Additive filling and repairing of laser 3D printing; Using a three-dimensional scanning device to obtain a solid model of metal parts that are completed by additive filling and repairing; and undamaged metal parts Comparing the difference between the component solid models to obtain the redundant part model after the completion of the additive filling and repairing; performing material reduction processing path planning on the redundant part model after the completion of the additive filling and repairing; performing material reduction processing. The invention can realize automatic intelligent repair and post-processing of metal parts, has high work efficiency and good stability, can greatly reduce the labor cost of repairing metal parts, and has the potential of large-scale industrial application.

Description

technical field [0001] The invention relates to the technical field of repairing metal parts, and more specifically, to an increase and decrease composite intelligent repair method for metal parts. Background technique [0002] The repair technology of metal parts is playing an increasingly important role in the construction of a resource-saving and environment-friendly society, and it has been widely used in the remanufacturing of metal parts. Significance and application value, restoration technology has also been greatly developed. [0003] The ultimate goal of metal parts repair is to restore the performance of the damaged parts to make it close to or the same as the performance of the original new product. Conventional repair technologies for metal parts mainly include electroplating, arc or flame surfacing, plasma spraying (welding) and laser cladding. At present, the repair work of conventional metal parts is mainly done manually, limited by the shape and damage def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00G06F30/17B23P6/00
CPCB23P6/00B23P15/00G06F30/17
Inventor 吕云卓
Owner DALIAN JIAOTONG UNIVERSITY