Transient beam oscillation with a highly dynamic scanner for laser beam fusion cutting
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Cindy Goppold
Cindy Goppold is a research associate in the department Laser Ablation and Cutting at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden, Germany. She earned her Master of Engineering in Laser- and Optotechnologies at the University of Applied Sciences Ernst-Abbe-Hochschule Jena, Germany. Her current research interests focus on the development of new approaches for the conventional laser beam cutting of metals.
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Thomas Pinder
Thomas Pinder is a research associate in the department Laser Ablation and Cutting at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden, Germany. He studied Mechanical Engineering at the Technical University of Dresden, Germany. He gained competences in signal processing in the case of laser beam cutting over the last years.
Patrick Herwig studied Mechatronics to MSc degree. He received his PhD in Mechanical Engineering at the Technical University of Dresden, Germany. After 5 years of research activities in the field of System Technology, he takes the lead of the Laser Cutting group at Fraunhofer IWS. His team focuses on efficiency and quality improvements for conventional laser cutting processes and the development of new technologies like the laser remote cutting.
Abstract
Sheet metals with thicknesses >8 mm have a distinct cutting performance. The free choice of the optical configuration composed of fiber diameter, collimation, and focal length offers many opportunities to influence the static beam geometry. Previous analysis points out the limitations of this method in the thick section area. Within the present study, an experimental investigation of fiber laser fusion cutting of 12 mm stainless steel was performed by means of dynamical beam oscillation. Two standard optical setups are combined with a highly dynamic galvano-driven scanner that achieves frequencies up to 4 kHz. Dependencies of the scanner parameter, the optical circumstances, and the conventional cutting parameters are discussed. The aim is to characterize the capabilities and challenges of the dynamic beam shaping in comparison to the state-of-the-art static beam shaping. Thus, the trials are evaluated by quality criteria of the cut edge as surface roughness and burr height, the feed rate, and the cut kerf geometry. The investigation emphasizes promising procedural possibilities for improvements of the cutting performance in the case of fiber laser fusion cutting of thick stainless steel by means of the application of a highly dynamic scanner.
About the authors
Cindy Goppold is a research associate in the department Laser Ablation and Cutting at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden, Germany. She earned her Master of Engineering in Laser- and Optotechnologies at the University of Applied Sciences Ernst-Abbe-Hochschule Jena, Germany. Her current research interests focus on the development of new approaches for the conventional laser beam cutting of metals.
Thomas Pinder is a research associate in the department Laser Ablation and Cutting at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden, Germany. He studied Mechanical Engineering at the Technical University of Dresden, Germany. He gained competences in signal processing in the case of laser beam cutting over the last years.
Patrick Herwig studied Mechatronics to MSc degree. He received his PhD in Mechanical Engineering at the Technical University of Dresden, Germany. After 5 years of research activities in the field of System Technology, he takes the lead of the Laser Cutting group at Fraunhofer IWS. His team focuses on efficiency and quality improvements for conventional laser cutting processes and the development of new technologies like the laser remote cutting.
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©2016 THOSS Media & De Gruyter
Artikel in diesem Heft
- Cover and Frontmatter
- Editorial
- Reviewer recognition and new plans for 2016
- Community
- News from the European Optical Society
- Conference Notes
- Conference Calendar
- Topical issue: Optics for material processing
- Editorial
- Optics for material processing
- Review Articles
- Near-field optics for nanoprocessing
- Interference laser processing
- Holographic femtosecond laser manipulation for advanced material processing
- Research Articles
- Theoretical and experimental analysis of scan angle-depending pulse front tilt in optical systems for laser scanners
- Transient beam oscillation with a highly dynamic scanner for laser beam fusion cutting
- Adaptive optical beam shaping for compensating projection-induced focus deformation
- Formation of in-volume nanogratings in glass induced by spatiotemporally focused femtosecond laser pulses
- Direct generation of superhydrophobic microstructures in metals by UV laser sources in the nanosecond regime
Artikel in diesem Heft
- Cover and Frontmatter
- Editorial
- Reviewer recognition and new plans for 2016
- Community
- News from the European Optical Society
- Conference Notes
- Conference Calendar
- Topical issue: Optics for material processing
- Editorial
- Optics for material processing
- Review Articles
- Near-field optics for nanoprocessing
- Interference laser processing
- Holographic femtosecond laser manipulation for advanced material processing
- Research Articles
- Theoretical and experimental analysis of scan angle-depending pulse front tilt in optical systems for laser scanners
- Transient beam oscillation with a highly dynamic scanner for laser beam fusion cutting
- Adaptive optical beam shaping for compensating projection-induced focus deformation
- Formation of in-volume nanogratings in glass induced by spatiotemporally focused femtosecond laser pulses
- Direct generation of superhydrophobic microstructures in metals by UV laser sources in the nanosecond regime
