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Method and apparatus of inspecting a printing quality of a 3D printing object during 3D printing process and 3D printing system

A 3D printing and printing quality technology, applied in the field of 3D printing, can solve the problems of checking the printing quality and not developing it, and achieve the effects of improving efficiency, improving control accuracy, and high spatial measurement resolution

Pending Publication Date: 2021-07-16
KOREA ADVANCED INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the 3D printing process, no technology has been developed to check the print quality by analyzing the information obtained from the measurement in real time

Method used

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  • Method and apparatus of inspecting a printing quality of a 3D printing object during 3D printing process and 3D printing system
  • Method and apparatus of inspecting a printing quality of a 3D printing object during 3D printing process and 3D printing system
  • Method and apparatus of inspecting a printing quality of a 3D printing object during 3D printing process and 3D printing system

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Embodiment Construction

[0046] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention can be implemented in various forms and is not limited to the embodiments described herein. In the drawings, in order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same or similar elements are assigned the same reference numerals throughout the specification.

[0047] figure 1 shows the configuration of a 3D printing system according to an embodiment of the present invention, figure 2 yes figure 1 Enlarged view of part A in Fig.

[0048] According to an exemplary embodiment of the present invention, the 3D printing system 1 may be a system for forming a 3D object by melting a base material using a laser. The 3D printing system 1 may comprise means for checking the print quality of the object to be 3D printed, ie the 3D printed object 4 , during the 3D printing process u...

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PUM

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Abstract

Disclosed are a method and an apparatus of inspecting a printing quality of a 3D printing object using a femtosecond laser beam during a 3D printing process, and a 3D printing system for the same. A laser beam is irradiated from a femtosecond laser source disposed coaxially with a 3D printing laser source to inspect a state of the printing object. The laser beam generated by the femtosecond laser source is separated into a pump laser beam and a probe laser beam. The printing laser beam irradiated from a 3D printing laser source or the pump laser beam is irradiated onto a printing object to generate ultrasonic waves. To measure the ultrasonic waves, a probe laser beam is irradiated onto the printing object. The probe laser beam reflected by the printing object is detected. The quality of the printing object is inspected by analyzing the reflected probe laser beam.

Description

technical field [0001] The present invention relates to a three-dimensional (3D) printing technology, more particularly, to a method and device for checking the printing quality of a 3D printed object using a femtosecond laser beam during the 3D printing process, and a 3D printing system with the device. Background technique [0002] As we all know, 3D printing is a manufacturing technique for producing three-dimensional objects. For 3D printing of three-dimensional objects, its processing method is based on 3D model data processing information stacked layer by layer. The advantage of 3D printing technology is that it is easy to realize complex shapes, shapes formed inside products, etc. Due to these advantages, 3D printing technology has attracted attention as a high value-added technology that can conveniently manufacture various products such as various industrial parts and medical materials. [0003] The 3D printing process can be performed by dividing the shape of a 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/31B22F10/85B22F10/25B22F12/41B22F12/44B22F12/90B22F3/105B33Y10/00B33Y30/00B33Y50/02
CPCB33Y10/00B33Y30/00B33Y50/02Y02P10/25G01N29/2418G01N2291/0258G01N29/07G01N2291/02827G01N2291/0427G01N2291/044G01N2291/0251G01N2291/02491G01N29/11B33Y40/00B22F2998/00B23K26/0006B23K26/144B23K26/1476B23K26/342B23K26/032B23K31/125G01B11/0666G01B17/02B22F10/25B22F10/28B22F10/00G01N29/04B22F10/10B22F12/43B22F10/36G01N29/043G01N29/44G01N2291/011G01N2291/0231G01N2291/02854G01N2291/0289G01N21/1702G01N2021/1706
Inventor 孙勋刘沛沛
Owner KOREA ADVANCED INST OF SCI & TECH