ICALEO 2012 Paper #M1204 (Heat Accumulation in Short-Pulse Laser Processing of CFRP)
Heat Accumulation in Short-Pulse Laser Processing of CFRP
Authors:
Rudolf Weber, Institut für Strahlwerkzeuge (IFSW),; Stuttgart Germany
Christian Freitag, Institut für Strahlwerkzeuge (IFSW),; Stuttgart
Margit Hafner, Institut für Strahlwerkzeuge (IFSW),; Stuttgart
Volkher Onuseit, Institut für Strahlwerkzeuge (IFSW),; -
Peter Berger, Institut für Strahlwerkzeuge (IFSW),; Stuttgart
Thomas Graf, Institut für Strahlwerkzeuge (IFSW),; Stuttgart
Presented at ICALEO 2012
Short-pulse laser processing is usually referred to as cold" due to the very high intensities causing a large fraction of the processed material to...$28.00
ICALEO 2012 Paper #M1203 (Potentials for Lasers in CFRP Production)
Potentials for Lasers in CFRP Production
Authors:
Charly Loumena, ALPhANOV; Talence France
Minh-Hoang Nguyen, ALPhANOV; Talence France
John Lopez, ALPhANOV, Univ. Bordeaux 1; Talence France
Rainer Kling, ALPhANOV; Talence Cedex France
Presented at ICALEO 2012
In lightweight construction CFRP is a potential candidate to replace metals for many parts, if production costs can be reduced and quality can be improved. Indeed, composite materials combine high mechanical performances, low weight and good corrosion resistance. Laser processes like surface activation and cleaning compete with conventional processes like abrasive jet machining, cryogenic cleaning and...$28.00
ICALEO 2012 Paper #M1202 (Dual Beam Laser Grooving of CFRP by Pulsed Lasers - Invited Presentation - 40 Minutes)
Dual Beam Laser Grooving of CFRP by Pulsed Lasers - Invited Presentation - 40 Minutes
Authors:
Masayuki Fujita, Institute for Laser Technology, Institute of Laser Engineering, Osaka Univ.; Osaka Japan
Toshihiro Somekawa, Institute for Laser Technology, Osaka Univ.; Suita Japan
Takumi Ozaki, Department of Electrical Engineering, Kinki Univ.; Higashiosaka Japan
Minoru Yoshida, Department of Electrical Engineering, Kinki Univ.; Higashiosaka Japan
Noriaki Miyanaga, Institute of Laser Engineering, Osaka Univ.; Suita Japan
Presented at ICALEO 2012
We have been investigating micromachining of CFRP by ultra-short laser pulses in order to minimize mate...$28.00
ICALEO 2012 Paper #M1201 (Trend Analysis of Laser Micromachining - Invited Presentation - 40 Minutes)
Trend Analysis of Laser Micromachining - Invited Presentation - 40 Minutes
Authors:
Wenwu Zhang, Institute of Advanced Manufacturing Technology, Ningbo Industrial Technology Research Institute, China Academy of Science (CAS); Schenectady USA
Presented at ICALEO 2012
This paper will use TRIZ trend tools to analyze the trends of laser micromachining technology and system development. It is argued that laser micromachining technology is in S2 stage on its S-curve, and this requires consideration of scale-up and standardization. Several major chanllenges will also be highlighted, such as depth limit, speed limit and quality limit.$28.00
ICALEO 2012 Paper #M1105 (1.3µM-Band Si Photodetectors with Optical Gains Fabricated by Dressed Photon Assisted Annealing)
1.3µM-Band Si Photodetectors with Optical Gains Fabricated by Dressed Photon Assisted Annealing
Authors:
Hajime Tanaka, Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The Univ. of Tokyo; Tokyo Japan
Tadashi Kawazoe, Department of Electrical Engineering and Information Systems, Nanophotonics Research Center, Graduate School of Engineering, The Univ. of Tokyo; Tokyo Japan
Motoichi Ohtsu, Department of Electrical Engineering and Information Systems, Nanophotonics Research Center, Graduate School of Engineering, The Univ. of Tokyo; Tokyo Japan
Presented at ICALEO 2012
We fabricated a novel photodetector by subjecting a Si cry...$28.00
ICALEO 2012 Paper #M1104 (Designer Pulses for Precise Machining of Silicon - A Step Towards Photonic Compositions)
Designer Pulses for Precise Machining of Silicon - A Step Towards Photonic Compositions
Authors:
Krste Pangovski, Centre for Industrial Photonics, Univ. of Cambridge; Cambrdge Great Britain
William O'Neill, Centre for Industrial Photonics, Univ. of Cambridge; Cambridge Great Britain
Peh Siong Teh, Optoelectronics Research Centre, Univ. Southampton; -
Shaif'ul Alam, Optoelectronics Research Centre, Univ. Southampton; -
David Richardson, Optoelectronics Research Centre, Univ. Southampton; -
Ali Gökhan Demir, Dipartimento di Meccanica, Politecnico di Milano; -
Presented at ICALEO 2012
Today there are many commercial nanoseco...$28.00
ICALEO 2012 Paper #M1103 (Analysis of Nanosecond Laser Ablation of Aluminum With and Without Phase Explosion in Air and Water)
Analysis of Nanosecond Laser Ablation of Aluminum With and Without Phase Explosion in Air and Water
Authors:
Yunfeng Cao, Center for Laser-based Manufacturing, Purdue Univ.; West Lafayette IN USA
Xin Zhao, Center for Laser-based Manufacturing, Purdue Univ.; West Lafayette IN USA
Yung Shin, Center for Laser-based Manufacturing, Purdue Univ.; W. Lafayette IN USA
Presented at ICALEO 2012
During nanosecond laser ablation processes, the interaction between a high energy laser beam and the target material will lead to a strong ablation of the target and therefore the formation of a crater on the target surface. A lot of research work has been devoted to the investigation of ...$28.00
ICALEO 2012 Paper #M1102 (Real Time Surface Tracking System in Laser Microprocessing)
Real Time Surface Tracking System in Laser Microprocessing
Authors:
Ville Hautala, Department of Production Engineering, Tampere Univ. of Technology; Tampere Finland
Antti Määttänen, Primoceler Inc.; Tampere Finland
Jorma Vihinen, Department of Production Engineering, Tampere Univ. of Technology; Tampere Finland
Presented at ICALEO 2012
In many micromachining applications, precise laser height focus control is essential for process success. Often workpiece surface changes are significantly greater than the laser"s depth of focus, which leads to uneven machining quality or the failure of the machining process. To resolve this problem, we have developed a surface tra...$28.00
ICALEO 2012 Paper #M1006 (Effects of Polarization on Laser Diffusion and Materials Modification)
Effects of Polarization on Laser Diffusion and Materials Modification
Authors:
Sen-Yong Chen, Laser-Advanced Materials Processing Laboratory CREOL, College of Optics and Photonics, Univ. of Central Florida; Orlando FL USA
Othmane Benafan, NASA Glenn Research Center, Structures and Materials Division; -
Aravinda Kar, Laser-Advanced Materials Processing Laboratory CREOL, College of Optics and Photonics, Univ. of Central Florida; Orlando FL USA
Raj Vaidyanathan, Advanced Materials Processing and Analysis Center (AMPAC), Mechanical, Materials, and Aerospace Engineering, Univ. of Central Florida; Orlando FL USA
Presented at ICALEO 2012
Laser diffusion of spec...$28.00
ICALEO 2012 Paper #M1005 (Non-Dimensional Evaluation of Nonlinear Absorptivity in Internal Modification of Glass Using USLP)
Non-Dimensional Evaluation of Nonlinear Absorptivity in Internal Modification of Glass Using USLP
Authors:
Isamu Miyamoto, Osaka Univ., Erlangen Graduate School of Advanced Optical Technologies (SAOT); Hyogo Japan
Kristian Cvecek, blz - Bayerisches Laserzentrum; Erlangen
Michael Schmidt, Erlangen Graduate School of Advanced Optical Technologies (SAOT), blz - Bayerisches Laserzentrum, Erlangen-Nuremberg Univ.; Erlangen
Presented at ICALEO 2012
A simple non-dimensional equation has been derived
to evaluate nonlinear absorptivity in simplified nondimensional
form, if the cross-sectional area of the
molten region is experimentally given in internal
melting of glass...$28.00
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