A laser selective melting high-efficiency forming device and method

Abstract

The invention discloses a high-efficiency forming device and method for selective laser melting; it includes a rotary forming platform; Forming cylinders at the periphery; the upper edges of the two forming cylinders are at the same level as the upper surface of the circular plane; the area covered by the movement track of the powder spreading mechanism on the circular plane is the powder spreading area, which is located under the laser melting forming station. The area is the forming area; that is, the straight line formed by the powder spreading area and the forming area is perpendicular to the axis of the linear powder spreading guide rail; when the rotary forming platform rotates 180°, the positions of the two forming cylinders alternate in the powder spreading area, Furthermore, when one of the forming cylinders is powder-coated, the other forming cylinder performs laser melting processing under the laser melting forming station.

Description

technical field

[0001] The invention relates to the technical field of additive manufacturing, in particular to a laser selective melting high-efficiency forming device and method. Background technique

[0002] Selected laser melting (SLM) molding technology is a kind of additive manufacturing technology. This technology is based on the "discrete-accumulation" principle, and according to the slice data of the digital 3D model, the raw material powder is melted point by point, line by line, and layer by layer with a laser beam. directly produce functional parts. Compared with other metal additive manufacturing technologies, laser selective melting technology has higher forming accuracy and can form complex and fine parts. It has technical advantages such as structural and functional integrated design and manufacturing, short cycle time, near-net shape, no molds, and no tools. It is one of the most promising technologies for metal additive manufacturing technology to become a...

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