Device for superspeed laser cladding manufacture and method

Abstract

The invention relates to a device for superspeed laser cladding manufacture and a method. The device comprises a laser generator, a beam expander and a reflector, wherein an emergent light path of thereflector directly faces a cladding nozzle, the cladding nozzle is connected with a powder pool through a hose and a pump in sequence, a base body is arranged below the cladding nozzle, the base bodyis located on a rotating platform, a main stepping motor is fixedly installed below the rotating platform and fixed to a lifting platform, and a laser range finder is arranged above the base body. According to the device and the method, through rotation, the superspeed laser cladding technology can reach a higher cladding speed on a flat plate, the cladding speed can reach 100 m / min, meanwhile, in a laser cladding additive manufacturing process, an ultrasonic vibration device, an infrared camera, a high-speed camera, a laser range finder and a radiographic inspection system are started, real-time detection is conducted on the laser cladding process, technological parameters are dynamically adjusted, and therefore the purpose of manufacturing the defect-free high-performance metal component is achieved.

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...

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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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