Mold plasma 3D rapid prototyping remanufacturing device and method

Abstract

The invention discloses a mold plasma 3D rapid prototyping remanufacturing device and method. The device comprises a monitoring system, a plasma beam processing system, a machining device used for machining a to-be-repaired mold, a level printing table used for placing the to-be-repaired mold, and a temporary fixing part used for temporarily fixing the to-be-repaired mold, wherein the plasma beam processing system comprises a plasma generator, an air supply device, a wire feeding device and a printing position adjusting device; the monitoring system comprises a horizontal motion controller, a temperature detection unit, a distance detection unit, a printing distance adjustment controller and a rotation controller; and the temperature detection unit and the printing distance adjustment controller form a temperature regulating device. The remanufacturing method comprises the steps of I, mold defect detection and II, mold repairing. According to the mold plasma 3D rapid prototyping remanufacturing device and the method, the design is reasonable, the operation is simple and convenient, the efficiency is high, the using effect is good, a sealed shaping room is not needed, the repairing process is directly carried out in the atmospheric environment, and the quality of the mold is good after repairing.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a mold plasma 3D rapid prototyping 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 dire...

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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