A self-adaptive layered additive manufacturing method

Abstract

The invention belongs to the field of additive manufacturing and discloses an adaptive layering type additive manufacturing method. The method comprises the following steps that (a), primary slicing treatment is conducted on a to-be-treated model file, and multiple main slice layers and the profile loop and data of each main slice layer are obtained; (b), points on the main slice layer profile loops are divided into difference feature vertexes and public feature vertexes; (C), local regionalization treatment is conducted on the difference feature vertexes, new local regions are generated, secondary slicing treatment is conducted on the new local regions according to the preset minimum layer thickness, and multiple sub-slice layers and profile data of the sub-slice layers are generated; and(d), 3D printing is conducted according to the profile data of the main slice layers and the sub-slice layers, and in this way, additive manufacturing is completed. By means of the adaptive layeringtype additive manufacturing method, the overall morphology of the model and the local features in the slice layers are taken into account, fine sub-layering treatment of the local regions in the slicelayers is realized, the inherent staircase effect of the slices is lowered, the layering slicing efficiency is improved, and the surface quality of finally-printed products is guaranteed.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to an adaptive layered additive manufacturing method. Background technique [0002] Additive manufacturing, commonly known as 3D printing, is a combination of computer-aided design, material processing and forming technology, based on digital model files, through software and numerical control system, special printing materials such as powder, wire, liquid, etc., according to sintering, Melting, extrusion, light curing, spraying, etc. are accumulated layer by layer to create a manufacturing technology for physical objects. Compared with the traditional processing mode of raw material removal-cutting and assembly, it is a basic manufacturing process technology of "discrete-layer-by-layer accumulation". This makes it possible to manufacture complex structural parts that were restricted by traditional manufacturing methods in the past. [0003] In the data proces...

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Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides an adaptive layered additive manufacturing method, through the localized processing of the adjacent main slice layer, and secondary slicing of the local area, by This solves the technical problem of the inherent step effect in the additive manufacturing process

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