A method for generating support positions based on normal distribution for overhanging structures in additive manufacturing

Abstract

The invention provides a normally distributed support positions-based generation method for a suspension structure in additive manufacturing. In the normally distributed support positions-based generation method for the suspension structure in additive manufacturing, a 3D model of a to-be-supported suspension structure in a to-be-printed entity can be obtained according to a 3D model of the to-be-printed entity, a support structure is added to the suspension structure, support positions of the support structure are normally distributed, and a 3D model of a support structure approximate to normal distribution is obtained. Support positions of key parts of the suspension structure are distributed densely, while support positions of non-key parts are distributed sparsely, therefore, materialsare saved, the support structure is easy to remove and plays an effective support role, and the support positions are distributed more reasonably.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, and in particular to a method for generating support positions based on normal distribution for overhanging structures in additive manufacturing. Background technique [0002] Additive manufacturing technology uses the principle of layer-by-layer accumulation to form the workpiece. Therefore, when forming the workpiece, it is necessary to add a support structure to the overhanging structure of the workpiece to prevent the workpiece from collapsing or warping and improving the forming accuracy. The support structure needs to be removed after printing. Therefore, when designing the support structure, it is also necessary to consider whether the support structure is easy to remove. The more support positions of the support structure are arranged, the larger the contact area between the support structure and the workpiece, and the harder it is to remove. [0003] For overhanging struct...

AI Technical Summary

Problems solved by technology

At present, the support structure design with even distribution is commonly used. If the support is too dense, it will cause waste of materials and the support structure is difficult to remove. If the support is sparse, it will not be able to provide effective support, resulting in collapse or warping deformation, or even failure to form.