I. J. Pekkarinen
Laboratory of Laser Processing, Department of Mechanical Engineering, Lappeenranta University of Technology, Tuotantokatu 2, 53850 Lappeenranta, Finland
Laser cladding using scanning optics is a relatively little studied matter. Scanning optics makes the adjustment of laser beam interaction zone numerically possible and it is, therefore, a more flexible optical tool than the conventional static optics. A series of cladding test were conducted using a 5 kW fiber laser and an oscillating linear scanner with dynamic powder feeding to determine the process characteristics and their possibilities and limi...
Laser Zentrum Hannover e.V., Hollerithallee 8, D-30419 Hannover, Germany
From an occupational safety point of view, the market launch of hand-held laser processing devices (HLDs) should be closely connected to machine safety qualification. In order to meet demands concerning a safe design of HLDs, research was performed to both develop and evaluate safety concepts for HLDs and to qualify technical measures for HLD laser safety. The work focused on the risk of injury especially for the skin arising from laser beam hazards by continuous-wave high-power laser systems typically use...
University of Applied Science Jena, Carl-Zeiss-Promenade 2, Jena 07745, Germany
JENOPTIK Automatisierungstechnik GmbH, Konrad-Zuse-Straße 6, Jena 07745, Germany
Jean Pierre Bergmann
University of Technology Ilmenau, Neuhaus 1, Ilmenau 98693, Germany
This paper discusses investigations regarding flexible and efficient strategies of laser remote welding of ultra-thin metal foils (≤50 μm) which are applied in the fields of electronics, packaging, and construction. A single-mode fiber laser was used, equipped with a scanner head and diverse objectives. Thus...
JLA Vol:24 Iss:5 (A comparative study of cut front profiles and absorptivity behavior for disk and CO<sub>2</sub> laser beam inert gas fusion cutting)
Leonardo Daniele Scintilla
Dipartimento di Meccanica, Matematica e Management (DMMM), Politecnico di Bari, Viale Japigia, 182–70126 Bari, Italy
Institute of Manufacturing Technology, Technische Universita¨t Dresden, 01062 Dresden, Germany and Fraunhofer IWS Dresden, Winterbergstraße 28, 01277 Dresden, Germany
Fraunhofer IWS Dresden, Winterbergstraße 28, 01277 Dresden, Germany
Institute of Manufacturing Technology, Technische Universita¨t Dresden, 01062 Dresden, Germany and Fraunhofer IWS Dresden, Winterbergstraße 28, 01277 Dres...
VITO, Vlaamse Instelling voor Technologisch Onderzoek, Department of Materials Technology, Boeretang 200, 2400 Mol, Belgium
Laser metal deposition (LMD) is used in industry to coat, additive manufacture, and/or repair high value metal components through deposition and laser induced melting of powder delivered in a gas stream. This study relates to the production of three-dimensional Inconel 625 components by LMD. After LMD, a dense cellular – dendritic structure containing carbides of the type MC, M23C6, and M6C has been detected by x-ray diffr...
JLA Vol:25 Iss:1 (Spatial analysis of the back reflected laser light during CO<sub>2</sub>-laser cutting of metal sheets)
Graduate School of Excellence Advanced Manufacturing Engineering in Stuttgart (GSaME), Universita¨t Stuttgart, D-70569 Stuttgart, Germany and Institut fu¨r Strahlwerkzeuge (IFSW), Universita¨t Stuttgart, Pfaffenwaldring 43, D-70569 Stuttgart, Germany
Institut fu¨r Strahlwerkzeuge (IFSW), Universita¨t Stuttgart, Pfaffenwaldring 43, D-70569 Stuttgart, Germany
During laser material processing such as laser welding or cutting, it is known that the whole laser power is not only absorbed in or transmitted through the interaction zone, but a significant percentage is also reflected back ...
JLA Vol:25 Iss:1 (Wettability modification of electrospun poly(ε-caprolactone) fiber by femtosecond laser irradiation)
Dave F. Farson
Laboratory for Multiscale Processing and Characterization, The Ohio State University, 1248 Arthur E Adams Drive, Columbus, Ohio 43221 and Department of Materials Science and Engineering, The Ohio State University, 477 Watts Hall, 2041 College Road, Columbus, Ohio 43210
Materials Science and Technology Division, Oak Ridge National Laboratory, One Bethel Road, P.O. Box 2008, MS-6095, Oak Ridge, Tennessee 37831-6095
John J. Lannutti
Department of Materials Science and Engineering, The Ohio State University, 477 Watts Hall, 2041 College Road, Columbus, Ohio 43210
Stan I. Rokhlin
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
M. T. Wang
Inner Mongolia University, Hohhot 010021, China
A novel localization scheme called laser beam scan localization by combining grid and light (laser) with mobile localization policy for wireless sensor networks is designed. The scheme utilizes a moving location assistant (LA) with a laser beam, through which the deployed area is scanned. The LA sends identities to unknown nodes to obtain the locations of sensor nodes. High localization accuracy can be achieved without the aid of expensive hardware on the sensor nodes, as required by other localization systems...
C. D. Clark
TASC Inc., 4141 Petroleum Road, Suite 4007 Fort Sam Houston, Texas 78234
W. J. Marshall
Laser Safety Specialties, Wilmington, Delaware 19810
R. J. Thomas
Air Force Research Laboratory, 711 HPW/RHDO, 4141 Petroleum Road, Fort Sam Houston, Texas 78234
In this paper, we present a theoretical analysis of multiple-pulse thermal damage thresholds based on the Arrhenius integral damage model. We consider the dependence of thresholds on both the number of pulses and the pulse spacing and show that the trends can be understood by considering the thermal relaxation time. The biological data that exists in the multiple-pulse therma...
There is currently no content classified with this term.