Trajectory planning method based on combined plane slicing and product

Abstract

The invention belongs to the field of additive manufacturing, and particularly discloses a trajectory planning method based on combined plane slicing and a product. The trajectory planning method comprises the steps that a three-dimensional model is input and a combined plane is defined, and spatial alternation is simultaneously carried out on the three-dimensional model and the combined plane; the preset times of the combined plane is skewed with a preset interval in the normal direction of the combined plane, so that a combined plane cluster is obtained; the combined plane cluster is used for slicing the three-dimensional model, and a three-dimensional slicing profile located on the combined plane cluster is obtained; the three-dimensional slicing profile is mapped to a horizontal planeto obtain a two-dimensional slicing profile; trajectory filling is carried out on the two-dimensional slicing profile on the horizontal plane to obtain a two-dimensional filling trajectory; and the two-dimensional filling trajectory is mapped to the combined plane to obtain a three-dimensional filling trajectory. According to the trajectory planning method based on combined plane slicing, by building the combined plane similar to the three-dimensional model and using a mapping relation of the combined plane and the horizontal plane to obtain an additive manufacturing trajectory located on thecombined plane, the requirements of special structural additive manufacturing can be effectively met.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a trajectory planning method and product based on combined plane slices. Background technique [0002] As the first step of additive manufacturing, the trajectory planning method affects the manufacturing scheme, manufacturing feasibility and manufacturing difficulty of the whole process. Traditional trajectory planning methods usually obtain 2D contours through planar slices, and then generate 2D manufacturing trajectories. This method is effective for parts with simple shapes, but for parts with special structures, the implementation of this method needs to modify the original model, such as adding support structures, which will lead to problems such as waste of materials, affecting surface accuracy, and difficult post-processing. . [0003] In recent years, many new trajectory planning methods have been developed for special structures, such as trajector...

AI Technical Summary

Problems solved by technology

This method is effective for parts with simple shapes, but for parts with special structures, the implementation of this method needs to modify the original model, such as adding support structures, which will lead to problems such as waste of materials, affecting surface accuracy, and difficult post-processing.

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