Polymer multi-material multi-laser flexible additional material manufacturing system and method

Abstract

The invention belongs to the field of wire laser additional material manufacturing, and discloses a polymer multi-material multi-laser flexible additional material manufacturing system and method. Thesystem comprises a plurality of modules, the modules correspond to different regions in a single slice layer, each module comprises a laser emitting unit, a plurality of robots and wire feeding unitsand extruding units which are matched with the robots, the laser emitting units and the extruding units are arranged separately so that extruding and melting are performed separately to avoid clogging of spray heads of the extruding units; the extruding units are arranged at the tail ends of the robots, the robots carry the extruding units to preset positions to achieve the transportation of wires, each robot conveys a wire correspondingly, the robots perform wire feeding according to preset trajectories and sequence, and the fed wire is melted under the action of the laser emitting unit to achieve forming of a plurality of materials of each slice layer. The polymer multi-material multi-laser flexible additional material manufacturing system and method solve the problem that the spray heads are easy to clog, improve the flexibility of the manufacturing system and achieve forming of large-sized products.

Description

technical field [0001] The invention belongs to the field of filament laser additive manufacturing, and more specifically relates to a polymer multi-material multi-laser flexible additive manufacturing system and method. Background technique [0002] Fused deposition modeling (FDM), as an important polymer additive manufacturing technology, has many advantages of additive manufacturing technology, such as the ability to manufacture parts that are not limited by geometric shapes, shorten product development and manufacturing cycles, and save materials. Wait. In the FDM forming process, the polymer filament is transported by the wire feeding mechanism to the nozzle and heated to a molten state, and solidified in the air after extrusion. [0003] At present, although FDM technology has the advantages of low operating cost, wide range of forming materials, and simple post-processing, as an important polymer additive manufacturing method, it still has the following shortcomings:...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a polymer multi-material multi-laser flexible additive manufacturing system and method, by improving the manufacturing system and its manufacturing method in the fused deposition process, wherein the The sliced ​​layer divided in forming is divided into multiple areas to realize zonal forming. At the same time, the forming unit and processing sequence corresponding to each forming area are set, and the extrusion unit and the laser emitting unit are set separately to make the polymer filament Material feeding and melting phase separation, which solves the common problems of FDM equipment, such as easy blockage of nozzles, difficult cleaning, and short service life; multiple robots drive wire feeding devices to transport different types of wires, which not only improves the flexibility of the processing process, Accuracy and stability, and realize the forming of multi-materials and the difficulty of forming large-size products, and greatly improve the flexibility of the manufacturing system

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