Feedback

Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
VIEW 8 | DOWNLOAD 16

Development of a laser triangulation sensor for the measurement of powder height in 3D printing

Download
Galet, Maxime ULiège
Promotor(s) : Vanderbemden, Philippe ULiège ; Duysinx, Pierre ULiège
Date of defense : 4-Sep-2023/5-Sep-2023 • Permalink : http://hdl.handle.net/2268.2/18162
Details
Title : Development of a laser triangulation sensor for the measurement of powder height in 3D printing
Author : Galet, Maxime ULiège
Date of defense  : 4-Sep-2023/5-Sep-2023
Advisor(s) : Vanderbemden, Philippe ULiège
Duysinx, Pierre ULiège
Committee's member(s) : Boigelot, Bernard ULiège
Peers, Thibaud 
Language : English
Discipline(s) : Engineering, computing & technology > Electrical & electronics engineering
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master : ingénieur civil électricien, à finalité spécialisée en "electronic systems and devices"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] Development of a laser triangulation sensor for the measurement of powder height in 3D printing

Metallic additive manufacturing is an industrial process in which 3-D objects are created by depositing small layers of metallic powders and fusing the powder grains together. This process is a fairly recent technology and most developments are limited to the manufacturing of mono-material pieces.

Aerosint developed a printing head that allows for the deposition of up to three different materials at the same time. This has many advantages concerning the characteristics of the resulting pieces, but result in a powder deposition that is not well controlled as well as wasted powder

Precise imaging of the deposited powder layers could allow for in-process corrections and general improvements, reducing the amount of wasted powder and driving down impression costs. As such, the scope of this thesis is to assess imaging possibilities and eventually implement a sensor capable of imaging the deposited powder layers.

A literature search on imaging methods was carried out, and laser triangulation emerged as the most appropriate candidate. The possibility of a laser triangulation sensor had already been tried by Aerosint, but the resolution in height of the sensor proved to be insufficient.

A first prototype was assembled in order to assess the numerous parameters involved in laser triangulation height measurements. The conclusions drawn from the process were useful to conceive a second prototype that allowed imaging of an entire powder layer.

This second prototype successfully imaged a powder layer deposited by Aerosint printing head, approaching the specifications of the project in term of resolution. The results obtained from this prototype as well as theoretical considerations pave the way for a future development by Aerosint.


File(s)

Document(s)

File
Access TFE.pdf
Description:
Size: 46.1 MB
Format: Adobe PDF
File
Access summary.pdf
Description:
Size: 125.64 kB
Format: Adobe PDF

Annexe(s)

File
Access TSL1401.ino
Description:
Size: 1.1 kB
Format: Unknown
File
Access w60.py
Description:
Size: 1.04 kB
Format: Unknown
File
Access noiseW.py
Description:
Size: 1.41 kB
Format: Unknown
File
Access filter.py
Description:
Size: 2.01 kB
Format: Unknown
File
Access Display.pde
Description:
Size: 12.24 kB
Format: Unknown
File
Access Computation.py
Description:
Size: 2.05 kB
Format: Unknown
File
Access CoM.py
Description:
Size: 1.65 kB
Format: Unknown
File
Access C1.py
Description:
Size: 6.57 kB
Format: Unknown
File
Access Spreadsheet---laser-classes.pdf
Description:
Size: 74.71 kB
Format: Adobe PDF

Author

  • Galet, Maxime ULiège Université de Liège > Master ingé. civ. électr., à fin.

Promotor(s)

Committee's member(s)

  • Boigelot, Bernard ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Informatique
    ORBi View his publications on ORBi
  • Peers, Thibaud
  • Total number of views 8
  • Total number of downloads 16










All documents available on MatheO are protected by copyright and subject to the usual rules for fair use.
The University of Liège does not guarantee the scientific quality of these students' works or the accuracy of all the information they contain.