ICALEO 2005 Paper #1504 (Novel Focusing Optics for IR Lasers)
Novel Focusing Optics for IR Lasers
Authors:
Gary Herrit, II-VI Incorporated; Saxonburg PA USA
Alan Hedges, II-VI Incorporated; Saxonburg PA USA
Herman Reedy, II-VI Incorporated; Saxonburg PA USA
Presented at ICALEO 2005
Traditional focusing optics for IR lasers are refractive lenses and off-axis reflective mirrors. ZnSe and GaAs meniscus and plano-convex lenses dominate the refractive lens types in use today for CO2 laser cutting, welding, marking, engraving systems to name a few of the more common applications. Spherical mirrors used near normal incidence and off-axis parabolic mirrors dominate the type of reflective mirrors used in very high power CO2 lasers for wel...$28.00
ICALEO 2005 Paper #1503 (Optical Characteristics of Nd:YAG Optics and Distortions at High Power)
Optical Characteristics of Nd:YAG Optics and Distortions at High Power
Authors:
Dirk De Lange, Netherlands Institute for Metals Research; Enschede The Netherlands
Johan Meijer, University of Twente; Enschede The Netherlands
Johannes Hofman, Netherlands Institute for Metals Research; Enschede The Netherlands
Presented at ICALEO 2005
The intensity profile and beam caustics of a fiber coupled high power Nd:YAG beam through a lens system is discussed. The thermal lensing effect and its influence on the beam profile and focal position is discussed. Also the influence of small pollutions on the protective window are demonstrated. Asymmetry of the intensity profile in planes ...$28.00
ICALEO 2005 Paper #1502 (Non-Contact Measurement of Central Lens Thickness)
Non-Contact Measurement of Central Lens Thickness
Authors:
Markus Kogel-Hollacher, Precitec Optronik GmbH; Rodgau Germany
Presented at ICALEO 2005
The production of high-quality optical lenses from glass or polymer materials is subject to tight specification tolerances. Critical lens parameters such as central thickness have to be monitored frequently, during the production process. A non-contact, fast and precise optical measuring setup based upon a confocal chromatic probe can be used to measure central lens thickness ranging from 30 microns up to 25 mm. The only parameters that have to be known up front, are the radius of curvature of one lens surface, and the material used. We will present ...$28.00
ICALEO 2005 Paper #1501 (CO2 Laser Beam Caustic Measurement with Focal Spot Analyser)
CO2 Laser Beam Caustic Measurement with Focal Spot Analyser
Authors:
Flemming Olsen, Technical University of Denmark; Lyngby Denmark
Hui Gong, Technical Univ. of Denmark; Lyngby Denmark
Claus Bagger, Novo Nordisk A/S; Copenhagen Denmark
Presented at ICALEO 2005
In industrial applications of high power CO2-lasers the caustic characteristics of the laser beam have great effects on the performance of the lasers. A well-defined high intense focused spot is essential for reliable production results. This paper presents a focal spot analyser that is developed for measuring the beam profiles of focused high power CO2-lasers. Conduction of the test methods and calculation of t...$28.00
ICALEO 2005 Paper #1405 (On the Wear Properties of Laser Coatings with High Carbide Concentrations)
On the Wear Properties of Laser Coatings with High Carbide Concentrations
Authors:
Petri Vuoristo, Tampere University of Technology; Tampere Finland
Janne Nurminen, Ketek; Kokkola Finland
Jonne Ni, KETEK; Kokkola Finland
Presented at ICALEO 2005
Laser coating (laser cladding) is a novel way to produce metal matrix composite (MMC) coatings. The selection of the metallic matrix can be selected on the base of the intended application and environment, whereas the additional wear resistance improvement is provided by mixing various carbides with the metallic matrix. In the present work, various types of MMC coatings were prepared by laser coating methods. The coatings co...$28.00
ICALEO 2005 Paper #1403 (Laser Clad WC Reinforced Ni-Based Intermetallic-Matrix Composites to Improve Cavitation Erosion Resistance)
Laser Clad WC Reinforced Ni-Based Intermetallic-Matrix Composites to Improve Cavitation Erosion Resistance
Authors:
Muthukannan Duraiselvam, Institut fr Schweiechnik und Trennende Fertigungsverfahren; Clausthal-Zellerfeld Niedersachen Germany
Rolf Galun, Institut fr Werkstoffkunde und Werkstofftechnik; Clausthal-Zellerfeld Niedersachen Germany
Volker Wesling, Institut fr Schweiechnik und Trennende Fertigungsverfahren; Clausthal-Zellerfeld Niedersachen Germany
Barry Mordike, Institu fr Werkstoffkunde und Werkstofftechnik; Clausthal-Zellerfeld Niedersachen Germany
Presented at ICALEO 2005
Cavitation erosion is a superficial damage encountered in flui...$28.00
ICALEO 2005 Paper #1403 (High Efficiency Laser Cladding at Elevated Processing Speed)
High Efficiency Laser Cladding at Elevated Processing Speed
Authors:
Knut Partes, BIAS Bremer Institut fr angewandte Strahltechnik; Bremen Germany
Thomas Seefeld, BIAS; Bremen Germany
Frank Vollertsen, BIAS Bremer Institut fr angewandte Strahltechnik; Bremen Germany
Gerd Sepold, BIAS Bremer Institut fr angewandte Strahltechnik; Bremen Germany
Presented at ICALEO 2005
Laser cladding is a versatile tool to deposit functional layers on surfaces of work pieces. With a laser beam the energy can be brought localized to the interaction zone compared to other cladding methods. It is possible to keep the heat introduced into the work piece low. On the other side...$28.00
ICALEO 2005 Paper #1402 (The Effect of Process Parameters on Residual Stresses Within an Inconel 718 Part Produced by the Direct Laser Deposition Process)
The Effect of Process Parameters on Residual Stresses Within an Inconel 718 Part Produced by the Direct Laser Deposition Process
Authors:
Andrew Pinkerton, University of Manchester; Manchester UK
Judith Shackleton, University of Manchester; Manchester Great Britain
Richard Moat, University of Manchester; Manchester Great Britain
Lin Li, University of Manchester; Manchester Greater Manches Great Britain
Philip Withers, University of Manchester; Manchester Greater Manches Great Britain
Michael Preuss, The University of Manchester; Manchester Great Britain
Jeffrey Allen, Rolls-Royce plc; Derby Derbyshire Great Britain
Paul Hi...$28.00
ICALEO 2005 Paper #1306 (Measuring Laser Absorption and Powder Capture Efficiency During Deposition)
Measuring Laser Absorption and Powder Capture Efficiency During Deposition
Authors:
Aaron Costello, South Dakota School of Mines & Technology; Rapid City South Dakota USA
Kate Nelson, South Dakota School of Mines & Technology; Rapid City South Dakota USA
Tricia Krungjohn, South Dakota School of Mines & Technology; Rapid City South Dakota USA
James Sears, South Dakota School of Mines & Technology; Rapid City SD USA
Michael Langerman, South Dakota School of Mines & Technology; Rapid City South Dakota USA
Umesh Korde, South Dakota School of Mines & Technology; Rapid City South Dakota USA
Presented at ICALEO 2005
There have been consi...$28.00
ICALEO 2005 Paper #1305 (Thermo-Mechanical Modeling of Hybrid Welding)
Thermo-Mechanical Modeling of Hybrid Welding
Authors:
Edward Reutzel, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Michael Bugarewicz, Dept. of Nuclear and Mechanical Engineering, Pennsylvania State University; University Park PA USA
Panagiotis Michaleris, Dept. of Nuclear and Mechanical Engineering, Pennsylvania State University; University Park PA USA
Shawn Kelly, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Richard Martukanitz, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Presented at ICALEO 2005
A thermo-mechanical model for predicti...$28.00
Pages
There is currently no content classified with this term.