By: Dirk Wortman Laser induced sub-100 nm structures offer vast potential benefits in photonics, biotechnology, tribological surface design and plasmonic applications. However the dynamics of their generation is not well understood. Research in this field requires high temporal and spatial resolution. In this paper, we report on our efforts on setting upand building an EUV-pump-probe […]
Laser Insights
Laser Welding: The Spatter Map
Alexander F. H. Kaplan and John Powell Luleå University of Technology, Dept. Applied Physics and Mechanical Engineering, Sweden Welding defects have to be suppressed to maintain the mechanical strength of a product under load. For suitable choice of the process parameters operating windows can be entered where a certain welding defect can be suppressed. However, […]
Using UV Laser Surface Treatment to Modify the Wettability Characteristics of Polyamide 6,6 and its Effects on Osteoblast Cell Activity
By: David G. Waugh and Jonathan Lawrence Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, UK Lincoln School of Engineering, University of Lincoln, UK The need for biological implants grows year upon year and it has been realized that there is a drive within the biomedical industry for cheaper and easier to manufacture products. This […]
Welding Zinc Coated Steels: New Joint Design and Strategy with Scanner Technology
By: Klaus Loeffler, Dr. Tim Hesse, Peter Kaupp TRUMPF Laser und Systemtechnik GmbH, Ditzingen, Germany TRUMPF Werkzeugmaschinen GmbH, Ditzingen, Germany The existing problems of weld defects in welding zinc coated steels in a overlap situation are present in the automotive industry. Overlap joints are the most common type of joint geometry used in the automotive […]
New Surface Sensor for Use in Rough Environments
Laser structured strain gauges can be used for exact measurement of forces at critical points, such as for highly stressed tooling machines or complex 3-D workpieces. Currently, the Laser Zentrum Hannover (LZH) is developing sensor structures using ultrashort laser pulses, with the goal of making the production of high-quality thin-film strain gauges economically attractive for […]