Online real-time monitoring system for multiple monitoring devices for metal additive manufacturing

Abstract

The invention provides an online real-time monitoring system for multiple monitoring devices for metal additive manufacturing, and the system comprises a high-speed camera detection module which detects the three-dimensional contour precision of an additive manufacturing part and the contour of a molten pool; a visible spectrometer detection module which is used for detecting the deflection angleof laser; a thermal infrared imager detection module which is used for detecting the temperature of the molten pool; an approaching visible hyperspectral camera detection module which detects spatialinformation and spectral information of the molten pool and sputtering; an interference imaging spectrometer detection module which is used for acquiring a two-dimensional space image and one-dimensional spectral information of the additive manufacturing part; a stress-strain detection module which is used for monitoring stress-strain data of the additive manufacturing part; a laser ultrasonic detection module which is matched with a rotary machining table to detect the surface and near-surface defects of the additive manufacturing part; an electronic computed tomography module which is matched with the rotary machining table to detect internal defects and internal geometric contours of the additive manufacturing part; a laser-induced breakdown spectroscopy detection module which is used for determining the material composition and content of the additive manufacturing part; and a central processing unit which finds out machining errors and metallurgical defects and then feeds back toa metal additive manufacturing machining end. According to the invention, the quality of finished products can be essentially improved.

Description

technical field [0001] The invention relates to the field of metal additive manufacturing, in particular to an online real-time monitoring system for various monitoring equipment of metal additive manufacturing. Background technique [0002] Additive manufacturing is regarded as a new growth point for future industrial development. Under the mutual promotion of governments and markets in various countries, additive manufacturing technology has achieved a qualitative leap, but it has not yet formed a large-scale industrial application. In the manufacturing process, the performance and manufacturing accuracy of the molded parts will be substandard to a certain extent. The current yield of SLM products is about 70%. The lower yield has seriously affected the process of large-scale industrial application of additive manufacturing. The main reason is that there is no substantial and reliable solution to the process repeatability and quality reliability problems in the processing ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an online real-time monitoring system for multiple monitoring equipment for metal additive manufacturing, which aims to solve the problem that the existing metal additive manufacturing monitoring equipment cannot find the cause of processing defects in time due to incomplete information acquisition

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