Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Air volume control method, system and readable storage medium applied to 3D printing

A 3D printing and air volume control technology, applied in the direction of additive processing, etc., can solve the problems of affecting printing quality, unsuitable air volume, workpiece fault, etc., to achieve the effect of improving printing quality

Active Publication Date: 2022-03-29
HUNAN FARSOON HIGH TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process described above, laser sintering metal powder will produce smoke and dust, which will affect the printing quality if not handled
In order to solve this technical problem, the existing selective laser melting equipment generally provides gas blowing in the working chamber, and the coefficient of the gas volume has been set at the beginning of construction. The air volume is not suitable. For example, if the air volume is too large, not only the metal residues will be blown out of the working area, but also the metal powder used for construction will also be blown out of the working area, resulting in the lack of metal powder on the surface of the unscanned workpiece, resulting in faults in the workpiece. Serious quality problems will be caused to the workpiece; and if the air volume is too small, metal residues will continue to fall on the workpiece, affecting quality problems, and may even cause the workpiece to be scrapped

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air volume control method, system and readable storage medium applied to 3D printing
  • Air volume control method, system and readable storage medium applied to 3D printing
  • Air volume control method, system and readable storage medium applied to 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Such as Figure 6 As shown, the air volume control method applied to 3D printing includes the following steps:

[0080] Step 41, acquiring the current layer image of the working area every 100 milliseconds;

[0081] Step 42, arrange the pixels in the current layer image in an array, and perform trapezoidal correction to restore the distortion caused by the fisheye lens;

[0082] Step 43: Process the pixels from one side of the current layer image row by row or column by row according to the preset direction to obtain an intermediate image, the intermediate image includes all normal pixels and abnormal pixels, and all normal pixels and abnormal pixels pass through two Display after value processing, and remove noise from the intermediate image;

[0083] Step 44: Compare the intermediate image with the theoretical sintered section image, and judge whether there are abnormal pixels in the intermediate image that do not belong to the sintered section, and whether there ar...

Embodiment 2

[0090] Such as Figure 7 As shown, the air volume control method applied to 3D printing includes the following steps:

[0091] Step 51, acquiring the current layer image of the working area every 100 milliseconds;

[0092] Step 52, arrange the pixels in the current layer image in an array, and perform trapezoidal correction to restore the distortion caused by the fisheye lens;

[0093] Step 53: Process the pixels from one side of the current layer image row by row or column by row according to the preset direction to obtain an intermediate image, the intermediate image includes all normal pixels and abnormal pixels, and all normal pixels and abnormal pixels pass through two Display after value processing, and remove noise from the intermediate image;

[0094] Step 54: Compare the intermediate image with the theoretical sintered section image, and judge whether there are abnormal pixels in the intermediate image that do not belong to the sintered section, and whether there ar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An air volume control method applied to 3D printing, a fast printing device and a readable storage medium, the method comprising: when the current layer powder spreading is completed and scanning is started, acquiring the current layer image of the working area, and sintering the current layer image with the theoretical The cross-sectional image is compared, and the air volume is controlled to increase or decrease according to the comparison result between the current layer image and the theoretical sintering cross-sectional image. The present invention analyzes and judges whether the air volume needs to be adjusted according to the comparison result of the current layer image and the theoretical sintering section image, and increases or decreases the air volume, thereby avoiding the disadvantage of affecting the printing quality due to inappropriate air volume. Therefore, the air volume control method applied to 3D printing, the fast printing device and the readable storage medium of the present invention improve the printing quality of products by intelligently adjusting the air volume.

Description

technical field [0001] The invention relates to the technical field of three-dimensional object manufacturing, in particular to an air volume control method, system and readable storage medium applied to 3D printing. Background technique [0002] As one of the additive manufacturing technologies, the basic process of selective laser melting technology is: the powder supply cylinder is raised by one layer thickness to send a certain amount of powder to the working area, the forming cylinder is lowered by one layer thickness, and the powder spreading mechanism 3 will A layer of powder material is laid flat on the base plate of the molding cylinder or the upper surface of the molded part, and the galvanometer system controls the laser to scan the solid part of the powder layer according to the cross-sectional profile of the layer, so that the powder melts and bonds with the molded part below . Repeat the above steps until several layers are scanned and stacked to complete the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y50/02
CPCB33Y10/00B33Y50/02
Inventor 邝晓聪刘鹏刘加发
Owner HUNAN FARSOON HIGH TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com