Model surface characteristic-based five-axis linked 3D printing method of adaptive hybrid section

Abstract

The invention relates to a model surface characteristic-based five-axis linked 3D printing method of an adaptive hybrid section. The model surface characteristic-based five-axis linked 3D printing method comprises the following steps: firstly establishing a workpiece three-dimensional model by using computer-aided design software, classifying the surfaces of the model into a top surface, side surfaces and a bottom surface according to normal vector information in an STL file, and segmenting the model according to continuity; classifying each model part into a flat area for plane printing and acharacteristic area for space printing according to surface characteristics; performing plane slicing for the flat area, acquiring a route code G according a preset sharp-corner height value adaptivesection, and acquiring a code G of a supporting part if the support is needed; performing the deviation slicing for the characteristic area, and acquiring a route code G; and combining and sequencingall route codes G, and inputting into a five-axis linked 3D printing machine to realize the printing. According to the method, by utilizing the five-axis linked printing machine, the space 3D printing is realized according to the workpiece surface characteristics. The method is a 3D printing production method which is high in workpiece surface precision, high in structural performance and capableof saving time and materials.

Description

technical field [0001] The invention relates to the technical field of spatial 3D printing, in particular to a five-axis linkage 3D printing method based on hybrid self-adaptive slicing of model surface features. Background technique [0002] 3D printing is a kind of additive manufacturing technology. Based on the digital model file, the computer is used to cut the model into a series of thin slices. The 3D printing equipment manufactures each layer of thin slices from bottom to top, and finally superimposes them to form a three-dimensional entity. This manufacturing technology does not require traditional tools or molds, and can realize the manufacture of complex structures that are difficult or impossible to process by traditional techniques, and can effectively simplify the production process and shorten the manufacturing cycle. [0003] Most of the existing 3D printers have three degrees of freedom, and the slicing method is planar slicing. During manufacturing, there w...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing 3D printers have three degrees of freedom, and the slicing method is planar slicing. During manufacturing, there will be a step effect between layers, which will reduce the surface quality

For complex models, support materials are often required to print entities, resulting in increased time and waste of materials

Because the mechanical properties of solids along the slice direction are lower than those in other directions, the mechanical properties of solids that are stressed along a specific direction or along the surface shape often cannot meet the requirements

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