EP 4363154 A2 20240508 - METHOD FOR CUTTING AN AMORPHOUS METAL ALLOY SAMPLE
Title (en)
METHOD FOR CUTTING AN AMORPHOUS METAL ALLOY SAMPLE
Title (de)
VERFAHREN ZUM SCHNEIDEN EINER PROBE AUS EINER AMORPHEN METALLLEGIERUNG
Title (fr)
PROCÉDÉ DE DÉCOUPE D'UN ÉCHANTILLON EN ALLIAGE MÉTALLIQUE AMORPHE
Publication
Application
Priority
- FR 2107113 A 20210630
- EP 2022067826 W 20220629
Abstract (en)
[origin: WO2022234155A2] The invention relates to a method for machining an amorphous metal alloy sample (1) using a femtosecond laser, comprising at least a step of irradiating the sample (1) with a laser beam (2) along a reference path (TRef) in order to ablate material of the sample (1), such as to obtain a machined sample (1) maintained in the amorphous state, wherein the laser beam (2) is pulsed and the duration of each pulse is less than 1000 femtoseconds, preferably less than 600 femtoseconds, and the laser beam (2) pulse frequency (f) is greater than 20kHz. According to the invention, the amorphous metal alloy has a submillimetre critical diameter (Dc), and/or a difference (ΔTx) between crystallisation temperature (Tx) and glass transition temperature (Tg) of less than 60°C, and/or a quotient (ΔTx/(TI-Tg)) of the difference (ΔTx) between crystallisation temperature (Tx) and glass transition temperature (Tg) and the difference between liquidus temperature (Tl) and glass transition temperature (Tg) of less than 0.12.
IPC 8 full level
B23K 26/046 (2014.01); B23K 26/0622 (2014.01); B23K 26/08 (2014.01); B23K 26/352 (2014.01); B23K 26/362 (2014.01); B23K 26/38 (2014.01); C22C 45/00 (2023.01); C22C 45/04 (2006.01); B23K 103/08 (2006.01); B23K 103/18 (2006.01)
CPC (source: EP)
B23K 26/0624 (2015.10); B23K 26/08 (2013.01); B23K 26/352 (2015.10); B23K 26/362 (2013.01); B23K 26/38 (2013.01); C22C 45/00 (2013.01); B23K 2103/08 (2018.08); B23K 2103/26 (2018.08); C22C 45/04 (2013.01); C22C 2200/02 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022234155 A2 20221110; WO 2022234155 A3 20221229; WO 2022234155 A9 20230209; EP 4363154 A2 20240508; FR 3124752 A1 20230106
DOCDB simple family (application)
EP 2022067826 W 20220629; EP 22754002 A 20220629; FR 2107113 A 20210630