3D printing method and system

A 3D printing and cross-section technology, applied in the field of 3D printing, can solve the problems of inability to print large-sized parts and long printing time, and achieve the effect of improving printing efficiency, shortening time-consuming, and ensuring accuracy

Active Publication Date: 2022-04-15
SICHUAN UNIV
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  • Abstract
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Problems solved by technology

[0005] This application provides a 3D printing method and system to solve the problems of long printing time and inability to print large-sized parts in traditional metal 3D printing technology using laser heating metal powder

Method used

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  • 3D printing method and system
  • 3D printing method and system

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] What needs to be explained in this embodiment is that the existing metal 3D printing mainly uses laser to heat the metal powder. Due to the small wavelength of the laser, the focused spot produced by the laser can quickly melt the metal powder material, and the dimensional accuracy can reach 20-50 μm, which is suitable for Although the printing accuracy of micro-small parts is high, the printing efficiency is low, and large-sized parts cannot be processe...

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Abstract

The invention provides a 3D printing method and system, and belongs to the technical field of 3D printing.The 3D printing method provided by the embodiment of the invention comprises the steps that at least one piece of section data of a to-be-printed object is obtained, and the section data comprises internal section data and external section data; performing 3D printing on the internal area of the to-be-printed object by adopting microwaves according to the internal section data; and meanwhile, according to the external section data, laser is adopted for conducting 3D printing on the external area of the to-be-printed object. According to the embodiment of the invention, the internal area is printed through microwaves, the consumed time is short, the energy consumption is low, the printing efficiency can be effectively improved, and 3D printing of large-size parts is realized; and the external area is printed through laser, and the precision of 3D printing can be further guaranteed.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a 3D printing method and system. Background technique [0002] As a symbolic technology of the new industrial revolution, metal 3D printing has the advantages of high precision and fast speed, and can manufacture highly complex structures that cannot be manufactured by traditional methods. Therefore, it is widely used in many fields such as manufacturing, medical treatment, and aerospace. Applications. [0003] Existing metal 3D printing mainly uses laser to heat metal powder, such as selective laser sintering (SLS), selective laser heating (SLM), direct metal laser sintering (DMLS), etc. Among them, the size of parts that can be manufactured by SLS technology is limited, and large-sized parts cannot be processed, and the manufacturing accuracy is not high; SLM technology improves the precision of manufactured parts in SLS technology, but the size of manufactured p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/28B22F12/41B22F12/45B33Y10/00B33Y30/00
CPCY02P10/25
Inventor 朱铧丞杨阳
Owner SICHUAN UNIV
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