Open AccessIncline the Beam
Author(s) -
Weber Patricia,
DiegoVallejo David,
Schlüter Holger
Publication year - 2016
Publication title -
laser technik journal
Language(s) - English
Resource type - Journals
eISSN - 1863-9119
pISSN - 1613-7728
DOI - 10.1002/latj.201600015
Subject(s) - beam (structure) , caustic (mathematics) , drilling , machining , optics , laser beams , materials science , laser , laser drilling , mechanical engineering , computer science , physics , engineering , geometry , metallurgy , mathematics
Abstract Modern ultra‐short‐pulse (USP) laser systems are fostering new micro‐machining technologies. Hole drilling with high aspect ratios has become a particularly important application in several industries. But drilling straight walls with high aspect ratios is not feasible if the laser beam impacts specimens at a normal incidence angle. The beam caustic affects hole corners and limits the maximum aspect ratio — that's why new solutions are needed. A novel 5‐axis technology allows beam inclination and enables straight walls, as well as negatively tapered holes.