Multipath wire feed laser fused deposition modeling (LFDM) device and method

Abstract

The invention discloses a multipath wire feed laser fused deposition modeling (LFDM) device and method. The device comprises a wire feed nozzle composed of multiple wire conveying pipelines, a laser head and a carbon dioxide laser. The wire feed nozzle and the laser head are fixedly connected together through a connecting part to form a composite printing head. A steering engine is mounted on the connecting part so as to increase the freedom degree of the composite printing head. The laser head can transmit a rectangular laser beam, and the rectangular laser beam ejects out from the lateral direction of the laser head and irradiates and covers the ends of corresponding wires stretching out of the outer portion of the wire feed nozzle to carry out fusing on the ends. According to the device, on the basis of a traditional fused deposition technology, a laser fused deposition technology is developed, some problems existing in traditional equipment are solved, meanwhile, more functions are given to the novel device, and more possibilities and methods and thoughts for solving the problems are provided for the fused deposition modeling technology. Meanwhile, by means of linear multipath wire feed, an effective multi-conveying-pipeline arrangement manner is provided.

Description

technical field [0001] The invention relates to printing components of additive manufacturing 3D printing equipment, in particular to a multi-channel wire-feeding laser fusion deposition LFDM forming device and method. 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 ...

AI Technical Summary

Problems solved by technology

Because there is no need to heat the nozzle, it saves molding time, and the filament is melted outside the composite print head, which solves the problems of nozzle clogging and broken wire.

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