Light-curing 3D printing method and light-curing 3D printing system
A 3D printing and light-curing technology, applied in the field of 3D printing, can solve the problems of warping and cracking around
Inactive Publication Date: 2016-06-08
ZHONGSHAN DONGFANG BODA ELECTRONICS SCI & TECH
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Problems solved by technology
In this DLP light-curing 3D printing technology, when strong ultraviolet light is curing a large area of resin, the material will have a certain shrinkage rate. For example, the liquid curing material is mentioned as 500mm*400mm*10mm When using a strong ultraviolet light source to cure the liquid material at one time, it will produce a phenomenon that the middle is thin and the surrounding is thick. When the volume of the material is 500mm*400mm*0.1mm, after curing, it will produce warped edges and cracks in the middle. The phenomenon
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.
[0024] figure 2 A schematic flow chart of an embodiment of the photocuring 3D printing method of the present invention is shown in . Such as figure 2 As shown, the photocuring 3D printing method in this embodiment includes steps:
[0025] Step S201: receiving a 3D printing instruction;
[0026] Step S202: Using an ultraviolet light source to sequentially irradiate each part of the forming surface of the photosensitive liquid tank according to the predetermined irradiation sequence and corresponding irradiation time, the irradiation sequence extends from the central ...
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Abstract
The invention discloses a photo-curing 3D (three-dimensional) printing method and system. The method comprises the following steps: receiving a 3D printing instruction, and sequentially irradiating each part of a photosensitive liquid tank forming surface according to a preset irradiation sequence and corresponding irradiation time by an ultraviolet light source, wherein the irradiation sequence is from the central part to the edge part of the photosensitive liquid tank forming surface, the central part of the photosensitive liquid tank forming surface is at the first place of the irradiation sequence, and the whole surface of the photosensitive liquid tank forming surface is at the tail of the irradiation sequence. According to the scheme, the central part of the photosensitive liquid tank forming surface is initially cured to remove water on the central part of the photosensitive liquid tank forming surface, and a liquid curing material around the central part can flow to the central part for compensation, so that the phenomenon of edge warping in a photosensitive resin curing process is effectively avoided.
Description
technical field [0001] The invention relates to the technical field of 3D printing, in particular to a photocuring 3D printing method and a photocuring 3D printing system. Background technique [0002] Due to the advantages of greatly reducing production costs, improving the utilization of raw materials and energy, customizing according to needs, and greatly saving product production time, 3D printing technology has gradually entered the public eye and developed rapidly in recent years, and 3D printers are 3D printing technology. It is an important device in the application. Compared with other additive manufacturing technologies, printing by 3D printers has the advantages of high speed, low price, and high ease of use. [0003] The basic principle of 3D printing is layered processing and superposition forming, that is, to generate 3D entities by adding materials layer by layer. During 3D printing, the software completes a series of digital slices through computer-aided desi...
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IPC IPC(8): B29C67/00
Inventor 石武
Owner ZHONGSHAN DONGFANG BODA ELECTRONICS SCI & TECH