A device and method for ultra-high-speed laser cladding additive manufacturing

Abstract

The invention relates to a device and method for ultra-high-speed laser cladding and additive manufacturing, including a laser generator, a beam expander and a reflector, the exit light path of the reflector is facing the cladding nozzle, and the cladding nozzle is It is connected to the powder pool through a hose and a pump. There is a substrate under the cladding nozzle, and the substrate is located on a rotating platform. A main stepping motor is fixedly installed under the rotating platform, and the main stepping motor is fixed on On the lifting platform, a laser range finder is arranged above the substrate. In the present invention, through rotation, the ultra-high-speed laser cladding technology can also achieve a relatively high cladding speed on a flat plate, which can reach 100m / min. At the same time, during the laser cladding and additive process, the ultrasonic vibration device, infrared camera, high-speed camera, laser range finder and radiation flaw detection system are turned on to detect the laser cladding process in real time and dynamically adjust the process parameters, so as to achieve high production without defects. Performance Metal Component Purpose.

Description

technical field [0001] The invention belongs to the field of laser additive manufacturing, and in particular relates to an ultra-high-speed laser cladding additive manufacturing device and method. Background technique [0002] Ultra-high-speed laser cladding technology is a newly developed surface coating technology in recent years. Compared with traditional laser cladding technology, it has the following advantages: the laser spot diameter is as low as 1 mm, and the thickness of single-layer cladding layer is smaller. ~250 μm; the cladding speed is extremely high (up to 500 m / min); the dilution rate of the cladding layer is low, generally only 2%~4%; the heat-affected zone is small, the deformation of the workpiece is small; the processing accuracy is high, and the processing cost lower. Ultra-high-speed laser cladding technology is the preferred technology for repairing parts. By forming a functional cladding material layer on the surface of the part that is completely di...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current ultra-high-speed laser cladding and additive manufacturing technology can only achieve ultra-high-speed laser cladding on the cylindrical surface, and to invent a method that can realize ultra-high-speed laser cladding and additive manufacturing on flat plates. Apparatus and method

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