Die plasma cladding direct remanufacturing equipment and remanufacturing method

Abstract

The invention discloses die plasma cladding direct remanufacturing equipment and a remanufacturing method. The equipment is composed of a monitoring system, a plasma beam machining system, a machining device for conducting machining on a to-be-repaired die, a horizontal printing table for containing the to-be-repaired die and a temporary fixing piece for conducting temporary fixing on the to-be-repaired die; the plasma beam machining system is composed of a plasma generator, an air supply device, a powder feeding device and a printing position adjusting device; and the monitoring system comprises a horizontal movement controller, a temperature detecting unit, a distance detecting unit, a printing distance adjusting controller and a rotation controller, and a temperature regulation and control unit is composed of the temperature detecting unit and the printing distance adjusting controller. The remanufacturing method includes the steps of (1) die defect detection and (2) die repairing. The die plasma cladding direct remanufacturing equipment is reasonable in design, easy and convenient to operate, high in efficiency, good in using effect and free of sealing a molding chamber, the repairing process is directly executed under the atmospheric environment, and the quality of the repaired die is good.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a mold plasma cladding direct remanufacturing equipment and a remanufacturing 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 ...

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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