Molten coating forming device and method of metal material gradient components

Abstract

The invention discloses a molten coating forming device and a method of metal material gradient components. The device comprises at least two metal smelting units, and further comprises an air pressure driving device, a molten coating head, a laser surface auxiliary remelting device, a powder feeder, a three-dimensional forming platform and an atmosphere protecting device; the air pressure driving device is connected with the metal smelting units through pipelines; the molten coating head is connected to the lower ends of the metal smelting units; the three-dimensional forming platform is arranged below the molten coating head; the laser surface auxiliary remelting device is arranged on one side of the three-dimensional forming platform; the powder feeder is arranged on the other side of the three-dimensional forming platform; and the metal smelting units, the molten coating head, the laser surface auxiliary remelting device, the powder feeder and the three-dimensional forming platform are all arranged in the atmosphere protecting device. The device can realize the added material manufacturing of part and gradient components with metal materials with high efficiency, high quality and low cost.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a melting coating forming device and method, in particular to a melting coating forming device and method of a metal material gradient member. Background technique [0002] Additive manufacturing technology (also known as "3D printing") is rapidly changing traditional production and lifestyles. Its core idea is to discretize three-dimensional parts in two dimensions to form layered data. According to the layering of the three-dimensional CAD model of the part Data, the discrete forming materials are gradually combined to form layered cross-sections, and then piled up layer by layer to form solid parts. The parts can be directly manufactured without molds, which can greatly reduce costs and shorten the development cycle. At present, relatively mature metal parts additive manufacturing technologies mainly include laser rapid prototyping, such as selective laser melting (Selective L...

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Problems solved by technology

However, the functionally graded materials prepared by this method still have problems such as insufficient interlayer bonding force, insufficient density of formed parts, and uneven distribution of materials.

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