Ultrafast pulsed laser high precision micromachining of rotational symmetric parts
Markus Gafner, Thorsten Krämer, Stefan Remund, Ronald Holtz, Beat Neuenschwander
Abstract
Ultrafast lasers are frequently used to machine rotational symmetric workpieces either with tangential processing for tools or with a helical gravure approach for structuring cylinders for printing and embossing applications. The highest precision and repeatability for seamless multilayer processing on the surface of a rotational symmetric workpiece can be achieved by synchronizing a galvo scanner and a rotatory axis with the seed of the used laser system. With this technology, a repeatability of better than ±1μm is kept for hundreds of revolutions as it will be demonstrated for applications such as tube cutting and structuring of small embossing rollers.
Topics & Concepts
Materials scienceSurface micromachiningEmbossingSynchronizingLaserOpticsRepeatabilityStructuringScannerUltrashort pulseMechanical engineeringComposite materialComputer scienceEngineeringTelecommunicationsEconomicsMedicineFinanceChemistryTransmission (telecommunications)Alternative medicinePhysicsPathologyChromatographyFabricationLaser Material Processing TechniquesAdvanced Surface Polishing TechniquesAdhesion, Friction, and Surface Interactions