Gantry type high-power plasma arc 3D printing equipment and method

Abstract

The invention discloses gantry type high-power plasma arc 3D printing equipment and a method. The printing equipment comprises a gantry type structure frame and elevated bearing walls, wherein a gantry platform of the frame is mounted at the upper ends of the elevated bearing walls at two sides. The printing equipment further comprises a printing machine head, a printing molding platform, an X-axle motion component, a Y-axle motion component, a Z-axle motion component, a powder feeding mechanism, an oscillator, a printing machine head rotating mechanism, a wire feeding device, a surfacing power supply and an electric cabinet. The printing method comprises the steps of three-dimensional modeling, layered slicing, process preparation and real-time printing. The plasma arc above 10kw is used for melting fed metal powder or wires to finish the 3D printing of large products under predesigned control programs, so that the 3D printing efficiency is greatly improved; the whole system adopts the full-digital control, and is provided with self-inspection and warning systems; and main process parameters are set by a human-computer interface, so that the use and the maintenance of operators are more convenient.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a gantry-type high-power plasma arc 3D printing device and method. Background technique [0002] Due to the globalization of the manufacturing industry and the fierce competition in the market, the rapid development of products has become one of the important means of competition. In order to meet the changing needs of customers in the manufacturing industry, the manufacturing technology must have high flexibility and be able to meet the needs of small batches or even single-piece production. market. Traditional metal parts removal or forced forming manufacturing methods often have many processes, high tool and mold costs, long cycle from design to part manufacturing, and are often powerless for parts with complex inner cavity structures, which is difficult to meet the rapid response manufacturing needs of new products . Since the 1990s, with the development of p...

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Problems solved by technology

[0005] The high-power metal 3D printing market is mainly monopolized by lasers. However, due to the high cost of laser 3D printing equipment and complicated maintenance, the requirements for the operator's own quality are very high. Due to the limitation of lasers, high-power equipment is still in the experimental stage.

The existing micro-arc plasma 3D printing technology uses a low-power and low-density micro-beam plasma arc as a heat source, which has disadvantages such as low printing efficiency and poor performance of finished products. The development is relatively slow and cannot be in line with international standards, which is not conducive to the general promotion of 3D printing technology in various fields in China

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