ICALEO 2009 Paper #M502 (Nanosecond Fiber Laser Micro-Texturing of Titanium Surface for Biomedical Applications)
Nanosecond Fiber Laser Micro-Texturing of Titanium Surface for Biomedical Applications
Authors:
Habib Abou Saleh, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
Ehsan Toyserkani, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
Fathy Ismail, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
Presented at ICALEO 2009
Laser micro-texturing has emerged in the last decade as an effective tool for biomaterials surface engineering which resulted in significant improvement in cell/surface interactions. This paper intends to mainly investigate nanosecond fiber laser micro-texturing on biocompatible materials,...$28.00
ICALEO 2009 Paper #M407 (Computer Simulation of Quasi-Simultaneous Welding Process of Polycarbonate)
Computer Simulation of Quasi-Simultaneous Welding Process of Polycarbonate
Authors:
Heidi Piili, Lappeenranta University of Technology; Lappeenranta Finland
Lauri Taimisto, Lappeenranta University of Technology; Lappeenranta Finland
Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta Finland
Petri Laakso, VTT Technical Reseach Center of Finland; Lappeenranta Finland
Antii Salminen, Lappeenranta University of Technology, Machine Technology Center Turku Ltd; Lappeenranta Finland
Presented at ICALEO 2009
Laser welding of polymers has had everyday industrial applications for over a decade. With modern scanner and laser technology,...$28.00
ICALEO 2009 Paper #M406 (Monitoring a High-speed Cw-laser Welding Process)
Monitoring a High-speed Cw-laser Welding Process
Authors:
C. Thiel, Forschungsgesellschaft Fuer Strahlwerkzeuge (Fgsw); Stuttgart Germany
R Weber, Institut Fuer Strahlwerkzeuge, University of Stuttgart; Stuttgart Germany
F. Dausinger, Technologiegesellschaft fuer Strahlwerkzeuge mbH; Stuttgart Germany
F. Abt, Forschungsgesellschaft fuer Strahlwerkzeuge FGSW; Stuttgart Germany
Presented at ICALEO 2009
The latest generation of high-brightness disk and fibre lasers allows deep penetration welding with a weld seam width of a few 10 µm and an aspect ratio of up to 15. Welding speeds exceeding 60 m/min are achieved. These properties are very promising for high-...$28.00
ICALEO 2009 Paper #M405 (Humping Reduction Methods for High Speed Laser Welding)
Humping Reduction Methods for High Speed Laser Welding
Authors:
Scott Cornell, Mound Laser & Photonics Center, Inc.; Miamisburg OH USA
Kevin Hartke, Mound Laser & Photonics Center, Inc.; Miamisburg OH USA
Sarah Bertke, Presenter not Author; -
Presented at ICALEO 2009
Conventional laser welding speeds, on the order of millimeters per second, are not economically feasible for future energy applications such as fuel cells. A typical fuel cell stack may have hundreds of feet of weld length which must be executed with high precision and no defects, as a single defective weld could result in failure of the entire stack. Recent technological advances in both laser systems ...$28.00
ICALEO 2009 Paper #M404 (Laser Welding of Aluminum and Copper for Battery Welding Applications using a 500W Single Mode Fiber Laser)
Laser Welding of Aluminum and Copper for Battery Welding Applications using a 500W Single Mode Fiber Laser
Authors:
Geoff Shannon, Miyachi Unitek Corporation; Monrovia CA USA
Hongqiang Chen, Miyachi Unitek Corporation; Monrovia CA USA
Presented at ICALEO 2009
The high brightness of single mode fiber lasers provides an excellent cutting source however in welding can be detrimental to weld quality, especially for ferrous materials. For conductive materials such as aluminum and copper the use of a single mode fiber presents some clear advantages of welding speed and cost effective welding solution. The ability to a focus to a sub 25 micron spot size enables the single mode fiber las...$28.00
ICALEO 2009 Paper #M403 (High-Efficiency and High Quality Welding of Aluminum Alloy by Hybrid System Combined Nd:YAG Laser and Diode Laser)
High-Efficiency and High Quality Welding of Aluminum Alloy by Hybrid System Combined Nd:YAG Laser and Diode Laser
Authors:
Tomokazu Sakagawa, Kataoka Corporation; Yokohama-City Kanagawa Japan
Shin-Ichi Nakashiba, Kataoka Corporation; Yokohama, Kanagawa Japan
Shin Haraguchi, Okayama University; Okayama Japan
Yasuhiro Okamoto, Okayama University; Okayama Japan
Yoshiyuki Uno, Okayama University; Okayama Japan
Presented at ICALEO 2009
Recently, the welding of aluminum alloy has been strongly required for lightening the electronic products, automobiles and so on. Then hybrid laser system was newly developed in order to perform the high efficiency ...$28.00
ICALEO 2009 Paper #M402 (Advances in Laser Based Joining Processes of Micro-Devices using Localised Heating)
Advances in Laser Based Joining Processes of Micro-Devices using Localised Heating
Authors:
Norbert Lorenz, Heriot-Watt University; Edinburgh Great Britain
Martin D. Smith, Heriot-Watt University; Edinburgh
Suzanne Millar, Heriot-Watt University; Edinburgh Great Britain
Marc Desmulliez, Heriot-Watt University; Edinburgh
Duncan P. Hand, Heriot-Watt University; Edinburgh Great Britain
Presented at ICALEO 2009
One of the remaining issues in the fabrication of micro-devices, including MEMS, is the packaging process. Standard techniques involve heating the whole device to high temperatures, preventing the use of temperature-sensitive materials wi...$28.00
ICALEO 2009 Paper #M308 (Laser Micro Processing of Metal and Silicon Using 100Khz and 2Mhz Ultrafast Lasers)
Laser Micro Processing of Metal and Silicon Using 100Khz and 2Mhz Ultrafast Lasers
Authors:
John Lopez, Alphanov; Talence France
Charly Loumena, Alphanov; Talence France
Victor Archambault, Alphanov; Talence France
Yoann Zaouter, Amplitude Systemes; Pessac France
Alexandre Trisorio, Amplitude Systemes; Pessac France
Marc Faucon, Alphanov; Talence France
Eric Mottay, Amplitude Systemes; Pessac France
Presented at ICALEO 2009
Ultrafast laser micromachining has been widely proven to be a high quality, high flexibility process, with numerous potential, industrial applications. Indeed, femtosecond laser is a key technology...$28.00
ICALEO 2009 Paper #M307 (Rapid Prototyping of Microchannels into Silicon with a Femtosecond Fiber Laser)
Rapid Prototyping of Microchannels into Silicon with a Femtosecond Fiber Laser
Authors:
Dong Hyuck Kam, CLAIM, The University of Michigan; Ann Arbor MI USA
Jyoti Mazumder, Clpam, the University of Michigan; Ann Arbor MI USA
Presented at ICALEO 2009
We report on rapid prototyping of microchannels into silicon wafer with a femtosecond pulsed laser. The microchannel is a basic component composing microfludic structures for biomedical applications. In development of such micro-fluidic structures, the mask-less laser direct writing will reduce time and cost as a tool for rapid prototyping compared with the conventional photolithography based technique. While fs ablation ends to be more ...$28.00
ICALEO 2009 Paper #M305 (Analytical Model for CW-Laser Cleaving of Semiconductors)
Analytical Model for CW-Laser Cleaving of Semiconductors
Authors:
Viktor Schütz, Laser Zentrum Hannover e.V.; Hannover Germany
Oliver Haupt, Laser Zentrum Hannover e.V.; Hannover Germany
Rainer Kling, Laser Zentrum Hannover e.V.; Hannover Germany
Presented at ICALEO 2009
The cw-laser cleaving process strongly depends on the temperature rise in the semiconductor and therefore from the active and passive process parameters. In the past, various methods have been developed to evaluate the process parameters in cw-laser processing of materials. The finite element method is a powerful tool for simulating heat conduction for all kinds of geometries, however, it turns out to...$28.00
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