Parameter optimization for laser cutting of technical relevant glasses like alkaline free Borosilicate and high index glasses

Ralf Terbrüggen; Tobias Röder; Moritz Malchus; Elisabeth Rosier; Sandra Höhm

doi:10.1117/12.3004769

12 March 2024 Parameter optimization for laser cutting of technical relevant glasses like alkaline free Borosilicate and high index glasses

Ralf Terbrüggen, Tobias Röder, Moritz Malchus, Elisabeth Rosier, Sandra Höhm

Author Affiliations +

Proceedings Volume 12873, Laser-based Micro- and Nanoprocessing XVIII; 128730X (2024) https://doi.org/10.1117/12.3004769
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Freeform Laser cutting for glass sheets, based on the Corning® nanoPerforation process, is a well-established process in multiple industrial applications, in the consumer electronics, automotive and semiconductor industry. Ultrashort pulsed lasers offer the possibility for a very confined energy deposition using non-diffractive beams, resulting in laser cuts with exceptional performance at high process speeds. Further benefits include an optimized material utilization for this clean, energy efficient and waste free technology. The fundamental understanding of the interdependencies of various laser process parameter and glass composition by relying on accessible glass properties, like CTE (coefficient of thermal expansion) or hardness, is the key to optimize the laser cutting results. This Knowledge enables fast process development, resulting in highest quality in sub-surface damage, edge strength and chipping distribution. Design of Experiments (DOE) is an efficient method to reveal the underlying correlation for this very specific non-linear laser material interaction. As the CTQ’s are not independent from each other, a DOE based approach systematically describes the interaction. The resulting advantage is a high process stability and yield which consequently facilitates a robust solution for industrial implementation. The machine- and laser configuration based on this know-how allows to cut a wide range of glass compositions and thickness by manipulating software-based recipes rather than by time- and cost-intensive reconfiguration of the optical setup.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ralf Terbrüggen, Tobias Röder, Moritz Malchus, Elisabeth Rosier, and Sandra Höhm "Parameter optimization for laser cutting of technical relevant glasses like alkaline free Borosilicate and high index glasses", Proc. SPIE 12873, Laser-based Micro- and Nanoprocessing XVIII, 128730X (12 March 2024); https://doi.org/10.1117/12.3004769

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