A new double spiral scanning method for CFRP step blind hole drilling by nanosecond UV laser

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 186, P. 112704 - 112704

Published: March 3, 2025

Language: Английский

Machinability of Drilling on Metallic Glass for Micro-Hole with Renewable Dielectric in an Electric Discharge Machining Process

Metals, Journal Year: 2025, Volume and Issue: 15(4), P. 415 - 415

Published: April 7, 2025

Electric discharge machining (EDM) stands out for its ability to perform no-contact of materials with desired forms by multi-pulse discharges. In this investigation, the machinability drilling on Ti56Zr18Cu12, metallic glass, micro-hole is investigated renewable dielectrics in EDM process. Machinability examining performance indicators including material removal rate (MRR), overcut, edge deviation, and energy efficiency per volume (EEV) relation process parameters, such as electrical non-electrical parameters. The edges drilled holes are examined investigate micro-structural changes that occur glass a result micro-machining. experimental results show maximal value MRR 0.0103 mm3/min achieved when pulse-on time 30 μs sunflower oil dielectric selected, minimum overcut deviation Ti56Zr18Cu12 39.99 9.41 μm, respectively. Minimum obtained colza oil, optimized 38% 70%, respectively, over worst-case conditions. Multi-objective optimization basis ratio analysis (MOORA) 70% reduction consumption EEV compared conventional paraffin media addition, range time, pulse duty cycle, identified using MOORA technique while Ti56Zr18Cu12.

Language: Английский

A novel composite film with superhydrophobic graphene for anti-icing/deicing via chemical-assisted magnetically controllable picosecond laser writing

Materials Today Physics, Journal Year: 2025, Volume and Issue: unknown, P. 101726 - 101726

Published: April 1, 2025

Language: Английский