一种基于多传感在线监测的智能激光填粉焊接装置及方法

The intelligent laser powder-filling welding device and method with multi-sensor online monitoring can monitor and optimize the welding process in real time, solve the defect problem in laser welding of light alloys, improve welding quality and efficiency, and adapt to workpieces of different materials and sizes.

CN118577940BActive Publication Date: 2026-07-17NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Filing Date
2024-05-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are prone to defects such as porosity and cracks in the laser welding of light alloys. Furthermore, the optimization of welding processes is time-consuming and labor-intensive, and the cost of post-weld quality inspection is high. There is a lack of intelligent laser powder filling welding devices and methods.

Method used

An intelligent laser powder-filling welding device and method based on multi-sensor online monitoring is adopted. The welding process is monitored in real time by a line laser measuring instrument, a spectrometer, a high-speed camera and an infrared thermometer. The control system adjusts the powder feeding amount and welding process parameters to realize the reconstruction of the three-dimensional model of the weld and the optimization of the post-weld quality prediction model.

Benefits of technology

It improves welding quality and efficiency, reduces post-weld quality inspection costs, and enables rapid, accurate, and automated welding of workpieces of different materials and sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

本专利公开了一种基于多传感在线监测的智能激光填粉焊接装置及方法。该装置通过线激光测量仪对工件焊缝区进行预先扫描,实现焊缝区域的三维模型重构,获取焊缝长度、宽度、深度等典型特征信息。利用多传感监测设备实时获取激光填粉焊接过程的熔池动态特征信息,控制系统接收来自监测装置的数据,基于内置知识库,根据多传感监测数据实时调整送粉量与激光焊接工艺参数,将每次监测与焊后质量数据作为训练集,不断优化质量预测模型精度。所述装置及方法可用于各类飞行器轻合金零部件焊接,有助于优化激光填粉焊接工艺,提升焊接质量与效率,对推动高水平飞行器发展有重要战略意义。
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