Delbari, Seyed Ali, Leclair, Jean-Philippe, Villeneuve, Guillaume et Hof, Lucas A..
2026.
« High-quality freeform machining of chemically strengthened glass using spark assisted chemical engraving ».
Results in Engineering, vol. 29.
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Résumé
This work demonstrates the first-ever utilization of Spark Assisted Chemical Engraving (SACE) for the freeform micro-machining of Chemically Strengthened Glass (CSG), achieving cut qualities that surpass existing laser and mechanical techniques for this notoriously difficult-to-process material. Using a Response Surface Methodology, the effects of key input parameters, voltage (33-37 V), cutting speed (5-15 µm/s), and electrolyte (KOH) concentration (24-30 wt.%), were investigated on critical output quality metrics, including chipping, cut surface roughness (Sa), and cut kerf. Statistical models were developed to predict outcomes, revealing complex parameter interactions including a synergistic effect between voltage and KOH concentration where high voltage degrades surface quality (especially at higher electrolyte concentrations). Among tested parameters, best results were achieved at 33 V, 5 µm/s and 30 wt.% KOH, resulting in superior surface integrity (Sa ≈ 2.41 µm, chipping size ≈ 4.1 µm). SACE is validated as a viable single-step freeform machining process for CSG, mitigating defects common in mechanical and laser-based methods, and provides a practical solution for remanufacturing high-value CSG waste within a circular economy framework.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Chercheur(-euse): | Chercheur(-euse) Hof, Lucas |
| Affiliation: | Génie mécanique |
| Date de dépôt: | 19 févr. 2026 16:47 |
| Dernière modification: | 25 mars 2026 21:04 |
| URI: | https://espace2.etsmtl.ca/id/eprint/33375 |
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