Plasma cladding direct manufacturing rapid prototyping apparatus and method

Abstract

The invention discloses a plasma cladding direct manufacturing rapid prototyping apparatus and method. The device consists of a monitoring system, a plasma beam machining system and multiple print platforms. Each print platform includes a horizontal print station, a print station position adjusting device and an electric walk mechanism. The plasma beam machining system consists of a plasma generator, a print distance adjusting device, a gas supply device and a powder feeder. The monitoring system includes a walk controller, a plurality of walk position detecting units, a temperature detecting unit, a distance detecting unit and a print distance adjusting controller. The method comprises the steps of first, acquisition of a three-dimensional model of a workpiece to be prototyped and layered slicing processing; second, scan path filling; third, print path acquisition; and fourth, printing layer by layer from the bottom to the top. The invention is reasonable in design, simple to operate, high in prototyping efficiency and good in using effect, and requires neither a closed prototyping room nor a protective atmosphere or vacuum environment, with the workpiece prototyping process performed directly under atmospheric conditions.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a rapid prototyping equipment and method directly produced by plasma cladding. Background technique [0002] 3D printing, known as Additive Manufacturing (AM) in academic circles, is a technology that uses computer design data to manufacture physical objects by layer-by-layer accumulation of materials. 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 that was born out of the integration of digital technology and manufacturing technology; the second is a profound change in the manufacturing process. 3D printing has changed the traditional cutting process mode, greatly reduced the processing steps, and can significantly shorten the development cost and cycle of new products; the third is an impor...

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

This makes the equipment cost of laser rapid prototyping technology very high

[0010] Fourth, the laser power is low, and the forming efficiency of parts is low

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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