Laser fused deposition modeling device and running method thereof

Abstract

The invention discloses a laser fused deposition modeling device and a running method thereof. The device comprises a carbon dioxide laser generator, a composite printing head and a multi-way wire feeding mechanism, wherein the carbon dioxide laser generator is connected with the composite printing head through an optical fiber and is connected with a moving lens set and a focusing lens in the composite printing head by means of optical paths; the lower end of the composite printing head is of a tapered structure, and a plurality of wire guide channels are distributed along the outer circumferential wall of the tapered structure; a wire supplied by the multi-way wire feeding mechanism passes through the corresponding wire guide channel; the carbon dioxide laser generator is used as a heat source for fusing the wires, and laser focus points focus the end parts of the wires so as to fuse the wires; an X- and Y-directional moving mechanism is used for carrying the composite printing head, and the fused wires are fused and deposited on a hot bed according a planned path. According to the device, the carbon dioxide laser generator and the composite printing head are organically integrated; the wires are fused at the outside of the composite printing head, so that the problem that a spray head of an existing printing head is easily blocked during printing can be solved.

Description

technical field [0001] The invention relates to the field of additive manufacturing 3D printing, in particular to a laser fusion deposition modeling device and an operating method thereof. Background technique [0002] The working principle of the traditional non-metallic desktop fused deposition FDM is to feed the filamentous raw material into the hot melt nozzle through the wire feeding part, and then be heated and melted in the nozzle. The semi-fluid material is sent to the designated position and finally solidified, and at the same time bonded with the surrounding materials, selectively melted and covered layer by layer, and finally forms a finished product. Fused deposition modeling is a technology invented by Stratasys in the late 1980s. In 1992, Stratasys launched the world's first 3D printer based on FDM technology - "3D Modeler (3DModeler)", which also marked that FDM technology entered the commercial stage. Domestically, research on FDM technology was first carri...

AI Technical Summary

Problems solved by technology

Solve the problem that the existing print head is prone to nozzle clogging during the printing process, etc.

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