Device and method for improving quality of wire laser cladding layer

Abstract

The invention provides a device and method for improving the quality of a wire laser cladding layer, and relates to the technical field of laser beam machining of high-end equipment manufacturing, and the device for improving the quality of the wire laser cladding layer comprises an ultrasonic generator, an ultrasonic transducer, an ultrasonic amplitude-change pole and a wire vibration excitation head; the input end of the ultrasonic transducer is connected to the output end of the ultrasonic generator through a power line; the input end of the ultrasonic amplitude-change pole is fixed at the output end of the ultrasonic transducer; a wire penetrating hole or a wire penetrating hook or a wire penetrating groove is formed in the vibration excitation head body, and a vibration excitation head installation part is arranged on the peripheral face of the vibration excitation head body and fixed to the output end of an ultrasonic amplitude-change pole. The wire laser cladding layer quality improvement device is applied to the wire laser cladding layer quality improvement method. According to the method, the material structure of the cladding layer can be refined, the porosity of the cladding layer is reduced, the micro-crack and cracking tendency of the cladding layer is reduced, the residual stress of the cladding layer is reduced, and the surface roughness of the cladding layer is greatly reduced, so that the quality of the cladding layer is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of laser beam processing for high-end equipment manufacturing, in particular to a device and method for improving the quality of laser cladding layers of wire materials. Background technique [0002] Laser cladding technology is a multidisciplinary cross-border technology involving laser technology, material surface modification technology, sensor technology, computer technology, and information and intelligence. It belongs to the field of high-end equipment manufacturing. Laser cladding technology is also an advanced manufacturing technology compatible with additive manufacturing, 3D printing, laser stereoforming, laser direct writing technology, and additive remanufacturing. It is oriented to aerospace, iron and steel metallurgy, electric energy, mining machinery, and precision instruments. , Embedded sensors, medical devices and weapons and other industrial fields of modern and future manufacturing techno...

AI Technical Summary

Problems solved by technology

This wire laser cladding method has at least the following disadvantages: the size of the molten wire melted by the laser beam is relatively large, and the material structure of the cladding layer formed thereby is coarse, easy to form pores, and easy to form microcracks or cracks. The residual stress of the cladding layer is relatively large, and the surface roughness of the cladding layer is large, etc.

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