Real-time regulation and control laser additive manufacturing alloy method based on online ultrasonic monitoring

The invention discloses a real-time regulation and control laser additive manufacturing alloy method based on online ultrasonic monitoring, which adopts an ultrasonic sensor to track back wall reflection of a laser forming sample in real time in the laser additive manufacturing process, and can accurately reflect generation of cracks and pores in the laser forming process by processing ultrasonic signal data, so that the laser additive manufacturing quality is improved. And laser forming process parameters are adjusted in real time according to feedback data, and finally the laser additive manufacturing alloy sample without cracks and holes is obtained. According to the method, the alloy forming quality is monitored and regulated in real time in the laser additive manufacturing process, and the laser forming quality of the formed alloy is remarkably improved. 本发明公开了一种基于在线超声监测的实时调控激光增材制造合金方法，该方法在激光增材制造过程中采用超声波传感器实时追踪激光成形样品的后壁反射，通过处理超声信号数据，可准确反应激光成形过程中裂纹与孔隙的产生，并根据反馈数据实时调整激光成形工艺参数，最终获得无裂纹孔隙的激光增材制造合金样品。该方法提供了一种在激