Shape correction for 3D laser marking

Master Thesis (2023)
Author(s)

Y. Chuang (TU Delft - Mechanical Engineering)

Contributor(s)

N Bhattacharya – Mentor (TU Delft - ImPhys/Medical Imaging)

Alejandro M. Aragón – Graduation committee member (TU Delft - Computational Design and Mechanics)

A. Hunt – Graduation committee member (TU Delft - Micro and Nano Engineering)

M. Boerkamp – Mentor (InPhocal)

Faculty
Mechanical Engineering
Copyright
© 2023 Yu-Xuan Chuang
More Info
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Publication Year
2023
Language
English
Copyright
© 2023 Yu-Xuan Chuang
Graduation Date
26-04-2023
Awarding Institution
Delft University of Technology
Programme
Mechanical Engineering | Precision and Microsystems Engineering
Faculty
Mechanical Engineering
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Abstract

inPhocal, a startup company specialized in laser marking, developed a novel optical module to make the depth of focus more than 50mm, and wants to replace ink marking by this laser marking system in the production line when marking information on products. Distortion will always happen when marking 2D patterns onto 3D objects with laser, so deforming the 2D patterns beforehand to make marked pattern keep its shape is necessary. This process is called shape correction. Nowadays, the way to do this shape correction is very complicated and time- consuming. This thesis is focused on providing a new method that can do shape correction easily and fast. In this research, Non-Uniform Rational B-Spline (NURBS) is used in reconstructing the 3D surfaces and the shape correction will be based on these NURBS surfaces. With this NURBS-based shape correction, the pattern can be mapped on to 3D object fast without distortion.

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