Open AccessMicro glass welding with millimeter‐long filaments
Author(s) -
Kahle Martin,
Nodop Dirk,
Wiemuth Paul,
Rücker Jan
Publication year - 2021
Publication title -
photonicsviews
Language(s) - English
Resource type - Journals
eISSN - 2626-1308
pISSN - 2626-1294
DOI - 10.1002/phvs.202100026
Subject(s) - welding , filamentation , materials science , laser beam welding , millimeter , laser , optics , usable , lens (geology) , heat affected zone , composite material , optoelectronics , computer science , physics , world wide web
The welding of glass with ultrashort‐pulsed lasers (USP) is usually conducted with microscope objectives. Their short working distance limits the thickness of the work piece, the usable laser power and the feed rate of the process. To increase the possible dimensions of the welding partners and the process speed to industrial levels, we present USP welding with a galvoscanner and a common F‐theta lens. Differences between the well‐known breakdown regime and the filamentation regime are discussed and tensile measurements are shown.