Method for manufacturing three-dimensional object by use of spray coating successively

Abstract

The invention discloses a method for producing three-dimensional matter via plating layer-to-layer, which comprises following steps: building a computer solid model of three-dimensional matter to be sliced and layered; the computer controls the operation of printing injector and injecting UV liquid material according to the molding information of each layer to be solidified via ultraviolet light to form a layer with the same shape and strength of molding information; injecting support material in the non-injected area as support; adhering each layer to produce designed three-dimensional matter; removing filled support material of each layer to attain the three-dimensional matter of said computer solid model. The invention can quickly, reliably, and safely produce complex three-dimensional matter and composite color three-dimensional matter with lower cost. Wherein, the molding material in said invention is innocuous, therefore, the invention can be used in office.

Description

technical field [0001] The invention relates to a method for forming a three-dimensional structure object, in particular to a method for manufacturing a three-dimensional object by layer-by-layer spraying. Background technique [0002] Rapid prototyping technology is a rapid production tool from computer three-dimensional entities to physical entities. It is suitable for the production of prototypes and small batches of functional parts. The materials of the produced parts can be ceramic materials, metal materials, paper, photosensitive resin and other materials. The commonly used processes of rapid prototyping technology include photocuring process, selective laser sintering, fused filament deposition manufacturing, laminated solid manufacturing and three-dimensional printing. [0003] The above several processes can make complicated three-dimensional structures, but there are the following defects: 1) the precision is low. For example, the precision of the three-dimension...

AI Technical Summary

Problems solved by technology

[0003] The above several processes can make complex three-dimensional structures, but there are the following defects: 1) the precision is low

2) Molding speed is slow

The laminated solid manufacturing process cuts out the outline of each layer by a laser, and then chops the non-solid area of ​​each layer. Therefore, it takes a long time to process thin-walled parts and the material utilization rate is low.

The 3D printing process using powder as the molding material, although the forming speed is faster than the other four processes, it takes a certain amount of time for auxiliary processes such as powder supply and powder spreading before each layer of processing, and the processed 3D structure generally has several thousand layer, the time of the auxiliary process accumulates more

3) Only monochromatic, or multi-color but opaque three-dimensional structures can be produced

In addition to the 3D printing process, the other four molding processes can only produce monochrome 3D structures, and cannot produce colored 3D objects. In this way, the product lacks color expressiveness in terms of product concept design and appearance design; The current 3D printing process mostly uses opaque granular materials such as gypsum powder, starch, ceramic powder, etc. Although the 3D objects produced are colorful, they cannot produce colored and transparent 3D objects, and the 3D objects produced by the current 3D printing process The accuracy of the objects is relatively low, and a large number of post-processing steps are required to obtain high-quality surface quality

Images