Device and method for regulating and controlling electric arc additive performance and forming stability in real time based on molten pool monitoring

Abstract

The invention provides a device and method for real-time regulation and control of electric arc additive performance and forming stability based on molten pool monitoring, and belongs to the technical field of electric arc additive, and the device comprises an electric arc additive module, an information acquisition and processing module, an intelligent library control module and a water cooling module. The information collecting and processing module can monitor the state of a molten pool and the layer height of a deposition layer in real time in the electric arc additive manufacturing process, simplifies shot image information feature points into data and transmits the data to the intelligent library control module to be stored. Wherein the intelligent library control module comprises a stored expert system part and data collected in real time, and parameters of the electric arc additive module and the water cooling module are adjusted in real time by comparing the data. According to the method, real-time monitoring and regulation of the electric arc additive process are achieved by simplifying molten pool information, and the forming quality and precision of electric arc additive are greatly improved while the electric arc additive efficiency is not reduced.

Description

Technical field: [0001] The invention belongs to the technical field of arc additive materials, and in particular relates to a device and method for real-time regulation and control of arc additive forming stability based on molten pool monitoring. Background technique: [0002] Additive manufacturing technology (also known as 3D printing) is based on the principle of discrete-accumulation, and based on digital models, metals or non-metals are stacked layer by layer according to a predetermined thickness and path, and finally formed. Because it can be processed and formed without the need for traditional tool subtraction, the process is reduced, and the processing time is shortened. [0003] Among them, arc additive manufacturing has gradually developed based on surfacing technology to meet the demand for additive manufacturing of large-scale and integrated aerospace structural parts. The advanced digital manufacturing technology of metal parts is gradually formed through t...

AI Technical Summary

Problems solved by technology

[0004] However, a large amount of smoke and dazzling arc light will be generated during arc additive processing, and the working environment is very harsh, which seriously endangers the health of workers.

Moreover, the surface of parts manufactured by arc additive manufacturing has large fluctuations, and the surface quality of formed parts is low. Generally, secondary surface machining is required

In the traditional molten pool monitoring technology, the monitor is often fixed, and the viewing angle is very single. The collected pictures can only be used as analysis data after the processing is completed.

At the same time, due to the huge memory required to store pictures, it is impossible to start the device for a long time, and it is even more difficult to use the collected pictures to adjust the scanning strategy in real time, which greatly limits the development of arc additive manufacturing technology.

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