Plasma fusion covering direct manufacture 3D printing equipment and method

Abstract

The invention discloses plasma fusion covering direct manufacture 3D printing equipment and a method. The equipment comprises a monitoring system, a plasma beam processing system, and a horizontal printing table. The plasma beam processing system includes a plurality of plasma beam processing devices; each plasma beam processing device comprises a plasma generator, a printing position adjustment controller, a gas supply device and a powder sending device. The monitoring system includes a plurality of beam processing supervising devices; each beam processing supervising device comprises a temperature detection unit, a horizontal movement controller, a distance detection unit and a printing distance adjustment controller. The temperature detection unit and the printing distance adjustment controller form a temperature control device. The method comprises the following steps: 1, acquisition of a 3D model of a workpiece to be printed, and hierarchical slicing processing; 2, scanning path filling; 3, printing path acquisition; and 4, printing layer by layer from top to bottom. The invention has the advantages of reasonable design, simple operation, high molding efficiency, good usage effect, and no need of enclosed moulding chamber, protection atmosphere, or vacuum environment.

Description

Technical field [0001] The invention belongs to the technical field of rapid prototyping, and particularly relates to a plasma cladding direct manufacturing 3D printing equipment and method. Background technique [0002] 3D printing, known as Additive Manufacturing (AM) in academia, is a technology that uses computer design data to build physical objects by stacking materials layer by layer. This technology started from the rapid prototyping technology in the 1980s and has three characteristics: one is a major leap in manufacturing technology. 3D printing is an emerging digital manufacturing technology spawned by the integration of digital technology and manufacturing technology; the second is a profound change in manufacturing technology. 3D printing has changed the traditional cutting processing mode, greatly reducing the processing procedures, and can significantly shorten the development cost and cycle of new products; the third is an important breakthrough in the manufactur...

AI Technical Summary

Problems solved by technology

This makes SLM rapid prototyping equipment expensive to run

[0009] Third, the laser is the core component of the selective laser rapid prototyping equipment, but the price of the laser is high and the maintenance cost is high

However, the above-mentioned laser cladding molding equipment and method mainly have the following three problems: first, the laser cannot protect the droplet, and a protective gas needs to be passed at the wire feeder. Forming has adverse effects, resulting in low mechanical properties of three-dimensional metal parts; second, the laser power is low and the diameter of the metal wire is large, it is difficult to achieve rapid prototyping of ceramic and composite material parts; third, due to surface tension, droplet cooling Circular shrinkage occurs during solidification molding, resulting in rough surface of the part

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