Ultrasonic-assisted laser-deposition additive manufacturing method and device

Abstract

The invention provides an ultrasonic-assisted laser-deposition additive manufacturing method and device, and belongs to the field of additive manufacturing. According to the ultrasonic-assisted laser-deposition additive manufacturing method, an ultrasonic vibration head is used for applying ultrasonic vibration to a deposition molten bath; the ultrasonic vibration head moves along with the deposition molten bath, the vibration transmission distance from the ultrasonic vibration head to the deposition molten bath is kept unchanged, during movement of the deposition molten bath, the ultrasonic vibration head is moved and the vibration transmission distance from the ultrasonic vibration head to the deposition molten bath is kept unchanged, thus the amplitude of the deposition molten bath is kept unchanged, then the uniformity of a formed deposition layer is improved, and the quality is stable. According to the ultrasonic-assisted laser-deposition additive manufacturing device, the position of a moving laser deposition head is monitored by the aid of a laser head positioning unit, a laser head position signal is transferred to a synchronous controller, the synchronous controller controls the vibration head according to the laser head position signal, and the distance from the vibration head to the projection of the deposition molten bath on the lower plate surface of a base plate is kept unchanged, so that the amplitude of the deposition molten bath is kept unchanged.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and more specifically relates to an ultrasonic-assisted laser deposition additive manufacturing method and device. Background technique [0002] Aluminum alloys and their composite materials have excellent properties such as low density, high specific strength, and good wear resistance, and are widely used in transportation, aerospace, mechanical products, and energy communications. With the development of aluminum alloy and its composite material components in the direction of integration, complex shape, thin wall, and high precision, traditional forming processes, such as casting, extrusion, forging, welding, and machining, have certain advantages. The limitations of the production process are time-consuming, labor-intensive, inefficient, and even impossible to manufacture. Therefore, the application of laser additive manufacturing technology to forming aluminum alloy and its co...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method of ultrasonic-assisted laser deposition additive manufacturing, to solve the unstable quality of deposited layers in different positions of parts produced by existing ultrasonic-assisted laser additive manufacturing technology methods in the prior art, especially in When preparing large-sized parts, the distribution of the deposited layer structure is not uniform, and the technical problems of poor overall mechanical properties

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