A 3D printing device and method based on centrifugal atomization

Abstract

The invention relates to a 3D printing device and method based on centrifugal atomization. Specifically, the 3D printing device includes a smelting system, a cabin with a sealed cavity inside, a turntable, a guide sleeve, and a molten metal receiving unit. A three-dimensional motion platform and a control unit for controlling the three-dimensional motion platform. The metal raw material enters the sealed cavity after being smelted, and is atomized under the rotation of the turntable and thrown out in the circumferential direction. Only the molten metal thrown to the injection gap of the flow guide sleeve can adhere to the receiver of the three-dimensional motion platform. On the unit, the control unit controls the movement of the three-dimensional motion platform, so that the position where the receiving unit receives the molten metal changes to form workpieces of different shapes; the metal raw materials are directly melted and atomized during the entire printing process, and then stacked and solidified, only need to control The solidification speed of metal raw materials solves the problems of low quality of workpieces, low material productivity and high equipment cost in the existing 3D technology.

Description

technical field [0001] The invention relates to an additive manufacturing equipment, in particular to a 3D printing device and method based on centrifugal atomization. Background technique [0002] 3D printing is a specific way of additive manufacturing, which can manufacture workpieces with complex shapes. In the 3D printing process of metal workpieces, spherical metal powder is usually used as raw material, and spherical metal powder is irradiated by laser and electron beam. Melting melts the spherical metal powder into one body, and then cools the molten metal to form a solid workpiece. However, the rapid heating and rapid solidification of the powder during the rapid prototyping process leads to defects such as pores and cracks in the material, which affects the quality of the output workpiece and causes the workpiece to be scrapped; in addition, the cost of equipment development, operation and maintenance is high, and the material production efficiency is low. , which ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 3D printing device based on centrifugal atomization, which is used to solve the problems of low workpiece quality, low material productivity, and high equipment cost in the existing 3D printing technology; at the same time, the present invention also provides a centrifugal atomization-based Optimized 3D printing method

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