ICALEO 2011 Paper #M206 (Parameter Study on Laser Welding of Nitinol Wire by Taguchi Method)
Parameter Study on Laser Welding of Nitinol Wire by Taguchi Method
Authors:
C.W. Chan, The Hong Kong Polytechnic University; Hong Kong Hong Kong
H.C. Man, The Hong Kong Polytechnic University; Hong Kong Hong Kong
T.M. Yue, The Hong Kong Polytechnic University; Hong Kong Hong Kong
Presented at ICALEO 2011
A L27 Taguchi experiment was done to investigate the effect of laser power, welding time, laser mode (CW and two pulsed modes), focus position, and their possible interactions on the weld-bead aspect ratio of laser-welded NiTi wires by using a 100W fibre laser. The optimized parameter setting to produce the full penetrated weldment with minimum welding defects is succe...$28.00
ICALEO 2011 Paper #M207 (Effect of Variable Power Control in Quasi-Simultaneous Fiber Laser Welding of Polymers)
Effect of Variable Power Control in Quasi-Simultaneous Fiber Laser Welding of Polymers
Authors:
Petri Laakso, VTT Technical Research Center of Finland; Lappeenranta Finland
Saara Ruotsalainen, VTT Technical Research Center of Finland; Lappeenranta
Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta
Mikko Rikkonen, Lappeenranta University of Technology; Lappeenranta
Antti Salminen, Lappeenranta University of Technology, Machine Technology Centre Turku Ltd.; Lappeenranta
Veli Kujanpää, VTT Technical Research Center of Finland, Lappeenranta University of Technology; Lappeenranta
Presented at ICALEO 2011
In tra...$28.00
ICALEO 2011 Paper #M302 (Back End Monolithic Series Interconnection of a Thin Film PV Module By Laser Scribing and Screen Printing)
Back End Monolithic Series Interconnection of a Thin Film PV Module By Laser Scribing and Screen Printing
Authors:
Johan Bosman, Energy Research Centre of the Netherlands; Eindhoven Netherlands
Corné De Kok, Energy Research Centre of the Netherlands; Petten Netherlands
Jochen Löffler, Energy Research Centre of the Netherlands; Petten Netherlands
Laurie Wipliez, Energy Research Centre of the Netherlands; Petten Netherlands
Martijn De Keijzer, Energy Research Centre of the Netherlands; Petten Netherlands
Wim Soppe, Energy Research Centre of the Netherlands; Petten Netherlands
Presented at ICALEO 2011
The combination of back end la...$28.00
ICALEO 2011 Paper #M304 (Laser Induced Backside Etching of Solar Glass by 1064nm Fiber Laser Irradiation)
Laser Induced Backside Etching of Solar Glass by 1064nm Fiber Laser Irradiation
Authors:
Chao He, Beijing University of Technology; Beijing Peoples Republic of China
Furong Liu, Beijing University of Technology; -
Jianwen Yuan, Beijing University of Technology; -
Jimin Chen, Beijing University of Technology; Beijing
Presented at ICALEO 2011
Textures on the surface of solar glass have the quality to improve the performance of itself and the further positive effect on the photovoltaics module. However, glass substrates cannot be etched directly by 1064 nm pulsed laser due to they are transparent to 1064 nm laser irradiation. Based on the principle of melt...$28.00
ICALEO 2011 Paper #M305 (Micromachining PV Materials with Time Domain Tailored Laser Pulses)
Micromachining PV Materials with Time Domain Tailored Laser Pulses
Authors:
Mathew Rekow, ESI-PyroPhotonics Laser, Inc.; Fremont CA USA
Richard Murison, ESI-PyroPhotonics Laser, Inc.; Montreal QC Canada
C Dinkel, NRC Canada, Industrial Materials Institute-CAMM; -
Tullio Panarello, ESI-PyroPhotonics Laser, Inc.; Montreal QC Canada
S Nikumb, NRC Canada, Industrial Materials Institute-CAMM; -
Walajabad Sampath, Colorado State University; Ft Collins CO USA
Presented at ICALEO 2011
For the CdTe P1 scribe, breaching of the SiO2 sodium barrier layer by the scribe laser, potentially exposes the CdTe film to Na from the soda lime glass s...$28.00
ICALEO 2011 Paper #M306 (Patterning and Marking of Textured and Untextured Silicon Solar Cells using a 532 Nm Picosecond Fiber Laser)
Patterning and Marking of Textured and Untextured Silicon Solar Cells using a 532 Nm Picosecond Fiber Laser
Authors:
Tim D. Gerke, Fianium Inc.; Eugene OR USA
Brian Baird, Summit Photonics; Lake Oswego OR USA
Presented at ICALEO 2011
Laser microprocessing is key to the development and manufacture of advanced silicon photovoltaics. In this paper a picosecond laser is used to pattern and mark the surface of both textured and non-textured passivated silicon photovoltaics as well as unpassivated silicon wafers. The laser is a master oscillator fiber power amplifier that provides 30 picosecond pulses at 532 nm with pulse energy up to 5 micro-Joules. We evaluate and compare techniques...$28.00
ICALEO 2011 Paper #M307 (Femtosecond Laser Patterning of Mo Thin Film on Flexible Substrate for CIGS Solar Cells)
Femtosecond Laser Patterning of Mo Thin Film on Flexible Substrate for CIGS Solar Cells
Authors:
Qiumei Bian, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
Xiaoming Yu, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
Baozhen Zhao, Kansas State University; Mahattan KS USA
Zenghu Chang, University of Central Florida, Kansas State University; Orlando FL USA
Shuting Lei, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
Presented at ICALEO 2011
Finding ways to scribe Mo back conductor plays an important role in the fabrication and assembly of CIGS thin film solar cells. Using a femtosecond (...$28.00
ICALEO 2011 Paper #M401 (Ultrafast Laser with High Energy and High Average Power for Industrial Micromachining: Comparison Ps-Fs)
Ultrafast Laser with High Energy and High Average Power for Industrial Micromachining: Comparison Ps-Fs
Authors:
John Lopez, Alphanov, University of Bordeaux; Talence Cedex France
Anne Lidolff, Alphanov; Talence France
Martin Delaigue, Amplitude Systemes; Pessac France
Clemens Hönninger, Amplitude Systemes; Pessac France
Sandrine Ricaud, Amplitude Systemes; Pessac France
Eric Mottay, Amplitude Systemes; Pessac France
Presented at ICALEO 2011
Pico and femtosecond lasers present a growing interest for surface structuring or thin film selective ablation applications such as flat panel display, photovoltaic or OLED industries. Indeed...$28.00
ICALEO 2011 Paper #M403 (Flexible and Precise Material Processing with Femtosecond Disc Lasers.)
Flexible and Precise Material Processing with Femtosecond Disc Lasers.
Authors:
Friedrich Dausinger, Dausinger + Giesen Gmbh; Stuttgart Germany
Steffen Sommer, Technologiegesellschaft für Strahlwerkzeuge mbH; Stuttgart Germany
Presented at ICALEO 2011
New dimensions in precision and the variety of machinable materials are enabled by the use of ultrashort laser pulses in material processing. Due to new powerful beam sources the processing efficiency has already reached an economic interesting state. Based on a regenerative disc amplifier the Dausinger + Giesen GmbH has developed a femtosecond source that is distinguished on its high flexibility and high pulse energy. Out of one res...$28.00
ICALEO 2011 Paper #M502 (Micromachining on Thermal Barrier Coated Supperalloy Using a Nanosecond Fiber Laser)
Micromachining on Thermal Barrier Coated Supperalloy Using a Nanosecond Fiber Laser
Authors:
Hongkun Lai, University of Michigan; -
Huan Qi, Shanghai Jiaotong University, University of Michigan; Shanghai Peoples Republic of China
Xinyang Shao, University of Michigan; -
Yuezhou Wang, University of Michigan; -
Jiayi Ding, University of Michigan; -
Chuming Zhao, University of Michigan; -
Presented at ICALEO 2011
As the advance of gas turbine engines, turbine entry temperature has been continuously enhanced, which demands for high performance thermal barrier coatings and improved cooling arrangement on turbine blades. In recent y...$28.00