Additive manufacturing method, device, and readable storage medium for manufacturing three-dimensional objects

Abstract

The present application relates to an additive manufacturing method for manufacturing a three-dimensional object, a device thereof, and a readable storage medium, wherein the additive manufacturing method for manufacturing a three-dimensional object comprises the steps of: according to the shape features of each workpiece to be formed in the work package , select the corresponding sintering parameter mode from the pre-stored sintering parameter mode database; for each slice section of each workpiece to be formed, use the same corresponding sintering parameter mode to scan, the additive material used for manufacturing three-dimensional objects of the present invention The manufacturing method, its equipment, and the readable storage medium can select appropriate sintering parameter modes according to the shape and structure features of different workpieces to be formed in a work package, so that not only the requirements for the forming accuracy of the workpieces to be formed can be met, but also the maximum guarantee is achieved. The molding efficiency of the entire work package.

Description

technical field [0001] The present application relates to the technical field of additive manufacturing, in particular to an additive manufacturing method for manufacturing three-dimensional objects, its equipment, and a readable storage medium. Background technique [0002] Additive manufacturing technology is an advanced manufacturing technology with distinctive features such as digital manufacturing, high flexibility and adaptability, direct CAD model drive, fast speed, and rich and diverse material types. tooling mold, so the application range is very wide. [0003] In the prior art, in the forming process of additive manufacturing, the combination of contour scanning and filling scanning is usually used to sinter or melt the section of the slice. When the laser spot diameter is large, the forming efficiency is high but the forming precision is poor. When the laser spot diameter is small, the forming efficiency is low but the forming precision is high. Therefore, in th...

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Problems solved by technology

When the laser spot diameter is large, the forming efficiency is high but the forming precision is poor; when the laser spot diameter is small, the forming efficiency is low but the forming precision is high

Therefore, in the prior art, the filling scan generally uses a large spot to ensure the molding efficiency, while the contour scan uses a small spot to ensure the molding accuracy. However, when the same work package contains a variety of workpieces to be formed, the contour scan One set of the same process parameters such as high-energy beam energy, speed, and spot diameter is used, and another set of the same process parameters such as high-energy beam energy, speed, and spot diameter is used for filling scanning, which makes it difficult for all workpieces to be formed in a work package A reasonable balance between molding precision and molding efficiency

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