Plasma 3D printing remanufacturing equipment and method for mold

Abstract

The invention discloses plasma 3D printing remanufacturing equipment and method for a mold. The equipment comprises a monitoring system, a plasma beam processing system, a machining device for machining a to-be-repaired mold, a horizontal printing table for accommodating the to-be-repaired mold and a temporary fixing element for fixing the to-be-repaired mold temporarily, wherein the plasma beam processing system comprises a plasma generator, a printing position adjusting device, a gas supply device and a powder feeder; the monitoring system comprises a horizontal motion controller, a temperature detection unit, a distance detection unit, a printing distance adjusting controller and a rotation controller, and the temperature detection unit and the printing distance adjusting controller constitute a temperature regulation device. The remanufacturing method comprises steps of 1, mold defect detection and 2, mold repair. The plasma 3D printing remanufacturing equipment and method for the mold have the advantages that the design is reasonable, the operation is simple, convenient and high in efficiency, the use effect is good, a molding cavity is not needed to be closed, a repair process is performed directly in an atmospheric environment, and the quality of the repaired mold is good.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a mold plasma 3D printing remanufacturing device and method. Background technique [0002] Mold refers to various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to shape a product. The molding surface of the mold refers to the surface used to shape the product (also called the product), and the molding surface is the surface that directly contacts the molded product. Wherein, the molding surface of the cavity refers to the outer surface for molding the product, and the molding surface of the core is the inner surface for molding the product. The processing quality, processing accuracy and performance of the molding surface of the mold are required to be high, which directly dete...

AI Technical Summary

Problems solved by technology

[0006] First, laser cladding equipment is expensive. At the same time, due to the short life, high price, high replacement and maintenance costs of the laser system of the core device of the equipment, the cost of remanufacturing molds by laser cladding is very high;

[0007] Second, the mechanical properties of the mold are very demanding. In order to achieve good performance after laser cladding, the metal powder is required to have good fluidity. Generally, spherical metal powder should be used, resulting in high material costs for laser cladding and remanufacturing molds;

[0011] First, surfacing remanufacturing molds generally require preheating and tempering heat treatment due to high local heat input and poor process controllability. At the same time, it is difficult to surfacing welding with materials whose mechanical properties exceed the mold material itself, resulting in surfacing remanufacturing molds Complex process and poor performance;

[0012] Second, the surface roughness of the surfacing remanufacturing mold is high, especially some molds need to be surfacing to fill the mold cavity, and finally process and shape, the consumption of surfacing materials is too high, the cost is high, and the processing allowance is large

But at present, there are three main problems in the selective electron beam rapid prototyping technology: first, the electron beam rapid prototyping technology needs a vacuum environment to form the energy source electron beam and avoid the oxidation of metal parts during the forming process

This makes the structure of the electron beam rapid prototyping equipment complex, the size of the molded parts is limited, and the molding equipment is expensive; second, the electron beam rapid prototyping technology requires a powder spreading system or a molding material supply system

This makes the structure of the electron beam rapid prototyping equipment complex, not only the size of the formed parts is limited, but also the forming efficiency is low; third, in order to ensure the mechanical properties of the parts, the electron beam rapid prototyping technology requires spherical metal powder with good fluidity

This makes SLM rapid prototyping equipment expensive to run

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